Civil engineers

"Painting is poetry which is seen and not heard, and poetry is a painting which is heard but not seen. These two arts, you may call them both either poetry or painting, have here interchanged the senses by which they penetrate to the intellect."

"Oysters open completely when the moon is full; and when the crab sees one it throws a piece of stone or seaweed into it and the oyster cannot close again so that it serves the crab for meat. Such is the fate of him who opens his mouth too much and thereby puts himself at the mercy of the listener."

"The painter strives and competes with nature...There is nothing in all nature without its reason. If you know the reason, you do not need the experience..."

"Look at the grace and sweetness of men and women in the street..."

"Thou, O God, sellest us all benefits, at the cost of our toil...."

"As a day well spent makes sleep seem pleasant, so a life well employed makes death pleasant. A life well spent is long."

"It is the infinite alone that cannot be attained, for if it could it would become finite."

"Fa vini potenti e assai, … e ‘l vino vale el più uno soldo il boccale e la libbra della vitella un soldo e ‘l sale 10 dinari, e ‘l simile il burro, ed è la loro libbra 30 once, e l’ova un soldo la soldata. (Modern Italian)"

"Su per lago di Como di ver Lamagnia (Alemagna, cioè Germania) è valle di Ciavenna dove la Mera fiume mette in esso lago. Qui si truova montagni sterili e altissime chon grandi scogli ... In queste montagnie li uccielli d’acqua dette maragoni. Qui nasscie abeti, larici eppini, daini, stambuche, chamoze e teribili orsi. Non ci si pò montare se none a 4 piedi. Vannoci i villani a tempi delle nevi chon grande ingiegni per fare trabochare gli orsi giù per esse ripe. Queste montagni strette metano i(n) mezo il fiume. Sono a destra e assinistra per isspatio di miglia 20 tutti a detto modo."

"Subito salse in me due cose: paura e desiderio: paura per la minacciante e scura spelonca, desiderio per vedere se là entro fusse alcuna miracolosa cosa. (Ancient Italian)"

"truovasi di miglio i(n) miglio bone osteriee. (Ancient Italian)"

"3 miglia più in là si trova li edifici della vena del rame e dello argento, presso una terra detta Pra Santo Petro e vene di ferro e cose fantastiche. (Ancient Italian)"

"Let no man who is not a Mathematician read the elements of my work."

"As a well-spent day brings happy sleep, so life well used brings happy death."

"Life well spent is long."

"Tristo é lo discepolo che non avanza il suo maestro."

"Tristo è quel discepolo che non avanza il suo maestro. (Modern Italian)"

"Shun those studies in which the work that results dies with the worker."

"Whoever in discussion adduces authority uses not intellect but rather memory."

"Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind."

"It is easier to resist at the beginning than at the end."

"Necessity is the mistress and guardian of Nature."

"Human subtlety...will never devise an invention more beautiful, more simple or more direct than does nature, because in her inventions nothing is lacking, and nothing is superfluous."

"Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics."

"I am not to blame for putting forward, in the course of my work on science, any general rule derived from a previous conclusion."

"The Book of the science of Mechanics must precede the Book of useful inventions."

"Seeing that I can find no subject specially useful or pleasing — since the men who have come before me have taken for their own every useful or necessary theme — I must do like one who, being poor, comes last to the fair, and can find no other way of providing himself than by taking all the things already seen by other buyers, and not taken but refused by reason of their lesser value. I, then, will load my humble pack with this despised and rejected merchandise, the refuse of so many buyers; and will go about to distribute it, not indeed in great cities, but in the poorer towns, taking such a price as the wares I offer may be worth."

"I know that many will call this useless work."

"Though I may not, like them, be able to quote other authors, I shall rely on that which is much greater and more worthy — on experience, the mistress of their Masters. They go about puffed up and pompous, dressed and decorated with [the fruits], not of their own labours, but of those of others. And they will not allow me my own. They will scorn me as an inventor; but how much more might they — who are not inventors but vaunters and declaimers of the works of others — be blamed."

"Those men who are inventors and interpreters between Nature and Man, as compared with boasters and declaimers of the works of others, must be regarded and not otherwise esteemed than as the object in front of a mirror, when compared with its image seen in the mirror. For the first is something in itself, and the other nothingness. — Folks little indebted to Nature, since it is only by chance that they wear the human form and without it I might class them with the herds of beasts."

"Many will think they may reasonably blame me by alleging that my proofs are opposed to the authority of certain men held in the highest reverence by their inexperienced judgments; not considering that my works are the issue of pure and simple experience, who is the one true mistress. These rules are sufficient to enable you to know the true from the false — and this aids men to look only for things that are possible and with due moderation — and not to wrap yourself in ignorance, a thing which can have no good result, so that in despair you would give yourself up to melancholy."

"Among all the studies of natural causes and reasons Light chiefly delights the beholder; and among the great features of Mathematics the certainty of its demonstrations is what preeminently (tends to) elevate the mind of the investigator. Perspective, therefore, must be preferred to all the discourses and systems of human learning. In this branch [of science] the beam of light is explained on those methods of demonstration which form the glory not so much of Mathematics as of Physics and are graced with the flowers of both."

"If the Lord — who is the light of all things — vouchsafe to enlighten me, I will treat of Light; wherefore I will divide the present work into 3 Parts... Linear Perspective, The Perspective of Colour, The Perspective of Disappearance."

"These rules are of use only in correcting the figures; since every man makes some mistakes in his first compositions and he who knows them not, cannot amend them. But you, knowing your errors, will correct your works and where you find mistakes amend them, and remember never to fall into them again. But if you try to apply these rules in composition you will never make an end, and will produce confusion in your works."

"These rules will enable you to have a free and sound judgment; since good judgment is born of clear understanding, and a clear understanding comes of reasons derived from sound rules, and sound rules are the issue of sound experience — the common mother of all the sciences and arts. Hence, bearing in mind the precepts of my rules, you will be able, merely by your amended judgment, to criticise and recognise every thing that is out of proportion in a work, whether in the perspective or in the figures or any thing else."

"Those who are in love with practice without knowledge are like the sailor who gets into a ship without rudder or compass and who never can be certain whether he is going. Practice must always be founded on sound theory, and to this Perspective is the guide and the gateway; and without this nothing can be done well in the matter of drawing."

"The painter who draws merely by practice and by eye, without any reason, is like a mirror which copies every thing placed in front of it without being conscious of their existence."

"Here forms, here colours, here the character of every part of the universe are concentrated to a point; and that point is so marvellous a thing … Oh! marvellous, O stupendous Necessity — by thy laws thou dost compel every effect to be the direct result of its cause, by the shortest path. These are miracles..."

"The eye which turns from a white object in the light of the sun and goes into a less fully lighted place will see everything as dark."

"The eye — which sees all objects reversed — retains the images for some time. This conclusion is proved by the results; because, the eye having gazed at light retains some impression of it. After looking (at it) there remain in the eye images of intense brightness, that make any less brilliant spot seem dark until the eye has lost the last trace of the impression of the stronger light."

"A point is not part of a line."

"The smallest natural point is larger than all mathematical points, and this is proved because the natural point has continuity, and any thing that is continuous is infinitely divisible; but the mathematical point is indivisible because it has no size."

"Nothing is that which fills no space. If one single point placed in a circle may be the starting point of an infinite number of lines, and the termination of an infinite number of lines, there must be an infinite number of points separable from this point, and these when reunited become one again; whence it follows that the part may be equal to the whole."

"The point, being indivisible, occupies no space. That which occupies no space is nothing. The limiting surface of one thing is the beginning of another."

"That which has no limitations, has no form. The limitations of two conterminous bodies are interchangeably the surface of each. All the surfaces of a body are not parts of that body."

"The line has in itself neither matter nor substance and may rather be called an imaginary idea than a real object; and this being its nature it occupies no space. Therefore an infinite number of lines may be conceived of as intersecting each other at a point, which has no dimensions and is only of the thickness (if thickness it may be called) of one single line."

"The boundaries of bodies are the least of all things. The proposition is proved to be true, because the boundary of a thing is a surface, which is not part of the body contained within that surface; nor is it part of the air surrounding that body, but is the medium interposted between the air and the body, as is proved in its place."

"Drawing is based upon perspective, which is nothing else than a thorough knowledge of the function of the eye. And this function simply consists in receiving in a pyramid the forms and colours of all the objects placed before it. I say in a pyramid, because there is no object so small that it will not be larger than the spot where these pyramids are received into the eye. Therefore, if you extend the lines from the edges of each body as they converge you will bring them to a single point, and necessarily the said lines must form a pyramid."

"Perspective is nothing more than a rational demonstration applied to the consideration of how objects in front of the eye transmit their image to it, by means of a pyramid of lines. The Pyramid is the name I apply to the lines which, starting from the surface and edges of each object, converge from a distance and meet in a single point."

"All objects transmit their image to the eye in pyramids, and the nearer to the eye these pyramids are intersected the smaller will the image appear of the objects which cause them."

"The instant the atmosphere is illuminated it will be filled with an infinite number of images which are produced by the various bodies and colours assembled in it. And the eye is the target, a lodestone, of these images."

"That the atmosphere attracts to itself, like a lodestone, all the images of the objects that exist in it, and not their forms merely but their nature may be clearly seen by the sun, which is a hot and luminous body. All the atmosphere, which is the all-pervading matter, absorbs light and heat, and reflects in itself the image of the source of that heat and splendor and, in each minutest portion, does the same. The north pole does the same as the lode stone shows; and the moon and the other planets, without suffering any diminution, do the same."

"All bodies together, and each by itself, give off to the surrounding air an infinite number of images which are all-pervading and each complete, each conveying the nature, colour and form of the body which produces it."

"Every body in light and shade fills the surrounding air with infinite images of itself; and these, by infinite pyramids diffused in the air, represent this body throughout space and on every side."

"The body of the atmosphere is full of infinite radiating pyramids produced by the objects existing in it. These intersect and cross each other with independent convergence without interfering with each other and pass through all the surrounding atmosphere; and are of equal force and value — all being equal to each, each to all. And by means of these, images of the body are transmitted everywhere and on all sides, and each receives in itself every minutest portion of the object that produces it."

"The air is filled with endless images of the objects distributed in it; and all are represented in all, and all in one, and all in each, whence it happens that if two mirrors are placed in such a manner as to face each other exactly, the first will be reflected in the second and the second in the first. The first being reflected in the second takes to it the image of itself with all the images represented in it, among which is the image of the second mirror, and so, image within image, they go on to infinity in such a manner as that each mirror has within it a mirror, each smaller than the last and one inside the other. Thus, by this example, it is clearly proved that every object sends its image to every spot whence the object itself can be seen; and the converse: That the same object may receive in itself all the images of the objects that are in front of it."

"All objects project their whole image and likeness, diffused and mingled in the whole of the atmosphere, opposite to themselves. The image of every point of the bodily surface, exists in every part of the atmosphere. All the images of the objects are in every part of the atmosphere."

"It is impossible that the eye should project from itself, by visual rays, the visual virtue, since, as soon as it opens, that front portion [of the eye] which would give rise to this emanation would have to go forth to the object and this it could not do without time. And this being so, it could not travel so high as the sun in a month's time when the eye wanted to see it."

"All the rays which convey the images of objects through the air are straight lines. Hence, if the images of very large bodies have to pass through very small holes, and beyond these holes recover their large size, the lines must necessarily intersect."

"O neglectful Nature, wherefore art thou thus partial, becoming to some of thy children a tender and benignant mother, to others a most cruel and ruthless stepmother? I see thy children given into slavery to others without ever receiving any benefit, and in lieu of any reward for the services they have done for them they are repaid by the severest punishments."

"The Medici created and destroyed me."

"Shadow is not the absence of light, merely the obstruction of the luminous rays by an opaque body. Shadow is of the nature of darkness. Light is of the nature of a luminous body; one conceals and the other reveals. They are always associated and inseparable from all objects. But shadow is a more powerful agent than light, for it can impede and entirely deprive bodies of their light, while light can never entirely expel shadow from a body, that is from an opaque body."

"Shadow is the diminution alike of light and of darkness, and stands between darkness and light."

"A shadow may be infinitely dark, and also of infinite degrees of absence of darkness. The beginnings and ends of shadow lie between the light and darkness and may be infinitely diminished and infinitely increased. Shadow is the means by which bodies display their form. The forms of bodies could not be understood in detail but for shadow."

"Shadow partakes of the nature of universal matter. All such matters are more powerful in their beginning and grow weaker towards the end, I say at the beginning, whatever their form or condition may be and whether visible or invisible. And it is not from small beginnings that they grow to a great size in time; as it might be a great oak which has a feeble beginning from a small acorn. Yet I may say that the oak is most powerful at its beginning, that is where it springs from the earth, which is where it is largest."

"Darkness is absence of light. Shadow is diminution of light."

"Light is the chaser away of darkness. Shade is the obstruction of light. Primary light is that which falls on objects and causes light and shade. And derived lights are those portions of a body which are illuminated by the primary light. A primary shadow is that side of a body on which the light cannot fall."

"The eye can best distinguish the forms of objects when it is placed between the shaded and the illuminated parts."

"The outlines and form of any part of a body in light and shade are indistinct in the shadows and in the high lights; but in the portions between the light and the shadows they are highly conspicuous."

"A single and distinct luminous body causes stronger relief in the object than a diffused light; as may be seen by comparing one side of a landscape illuminated by the sun, and one overshadowed by clouds, and so illuminated only by the diffused light of the atmosphere."

"The body which is nearest to the light casts the largest shadow, and why? If an object placed in front of a single light is very close to it you will see that it casts a very large shadow on the opposite wall, and the farther you remove the object from the light the smaller will the image of the shadow become."

"If you transmit the rays of the sun through a hole in the shape of a star you will see a beautiful effect of perspective in the spot where the sun's rays fall."

"No small hole can so modify the convergence of rays of light as to prevent, at a long distance, the transmission of the true form of the luminous body causing them."

"I ask how far away the eye can discern a non-luminous body, as, for instance, a mountain. It will be very plainly visible if the sun is behind it; and could be seen at a greater or less distance according to the sun's place in the sky."

"When you represent in your work shadows which you can only discern with difficulty, and of which you cannot distinguish the edges so that you apprehend them confusedly, you must not make them sharp or definite lest your work should have a wooden effect."

"A shadow will appear dark in proportion to the brilliancy of the light surrounding it and conversely it will be less conspicuous where it is seen against a darker background."

"A dark object seen against a bright background will appear smaller than it is. A light object will look larger when it is seen against a background darker than itself."

"A luminous body when obscured by a dense atmosphere will appear smaller; as may be seen by the moon or sun veiled by fogs."

"Of several luminous bodies of equal size and brilliancy and at an equal distance, that will look the largest which is surrounded by the darkest background."

"I find that any luminous body when seen through a dense and thick mist diminishes in proportion to its distance from the eye. Thus it is with the sun by day, as well as the moon and the other eternal lights by night. And when the air is clear, these luminaries appear larger in proportion as they are farther from the eye."

"A luminous body will appear more brilliant in proportion as it is surrounded by deeper shadow."

"The variety of colour in objects cannot be discerned at a great distance, excepting in those parts which are directly lighted up by the solar rays."

"Experience shows us that the air must have darkness beyond it and yet it appears blue. If you produce a small quantity of smoke from dry wood and the rays of the sun fall on this smoke, and if you then place behind the smoke a piece of black velvet on which the sun does not shine, you will see that all the smoke which is between the eye and the black stuff will appear of a beautiful blue colour. And if instead of the velvet you place a white cloth smoke, that is too thick smoke, hinders, and too thin smoke does not produce, the perfection of this blue colour. Hence a moderate amount of smoke produces the finest blue."

"The atmosphere is blue by reason of the darkness above it because black and white make blue."

"The sun gives spirit and life to plants and the earth nourishes them with moisture."

"Many are they who have a taste and love for drawing, but no talent; and this will be discernible in boys who are not diligent and never finish their drawings with shading."

"I myself have proved it to be of no small use, when in bed in the dark, to recall in fancy the external details of forms previously studied, or other noteworthy things conceived by subtle speculation; and this is certainly an admirable exercise, and useful for impressing things on the memory."

"If you are representing a white body let it be surrounded by ample space, because as white has no colour of its own, it is tinged and altered in some degree by the colour of the objects surrounding it."

"A picture or representation of human figures, ought to be done in such a way as that the spectator may easily recognise, by means of their attitudes, the purpose in their minds. Thus, if you have to represent a man of noble character in the act of speaking, let his gestures be such as naturally accompany good words; and, in the same way, if you wish to depict a man of a brutal nature, give him fierce movements; as with his arms flung out towards the listener, and his head and breast thrust forward beyond his feet, as if following the speaker's hands. Thus it is with a deaf and dumb person who, when he sees two men in conversation — although he is deprived of hearing — can nevertheless understand, from the attitudes and gestures of the speakers, the nature of their discussion."

"When you wish to represent a man speaking to a number of people, consider the matter of which he has to treat and adapt his action to the subject. Thus, if he speaks persuasively, let his action be appropriate to it. If the matter in hand be to set forth an argument, let the speaker, with the fingers of the right hand hold one finger of the left hand, having the two smaller ones closed; and his face alert, and turned towards the people with mouth a little open, to look as though he spoke; and if he is sitting let him appear as though about to rise, with his head forward. If you represent him standing make him leaning slightly forward with body and head towards the people. These you must represent as silent and attentive, all looking at the orator's face with gestures of admiration; and make some old men in astonishment at the things they hear, with the corners of their mouths pulled down and drawn in, their cheeks full of furrows, and their eyebrows raised, and wrinkling the forehead where they meet."

"The motions of men must be such as suggest their dignity or their baseness."

"Represent your figures in such action as may be fitted to express what purpose is in the mind of each; otherwise your art will not be admirable."

"What is fair in men, passes away, but not so in art."

"If you condemn painting, which is the only imitator of all visible works of nature, you will certainly despise a subtle invention which brings philosophy and subtle speculation to the consideration of the nature of all forms — seas and plains, trees, animals, plants and flowers — which are surrounded by shade and light. And this is true knowledge and the legitimate issue of nature; for painting is born of nature — or, to speak more correctly, we will say it is the grandchild of nature; for all visible things are produced by nature, and these her children have given birth to painting. Hence we may justly call it the grandchild of nature and related to God."

"The eye, which is called the window of the soul, is the principal means by which the central sense can most completely and abundantly appreciate the infinite works of nature; and the ear is the second, which acquires dignity by hearing of the things the eye has seen. If you, historians, or poets, or mathematicians had not seen things with your eyes you could not report of them in writing. And if you, O poet, tell a story with your pen, the painter with his brush can tell it more easily, with simpler completeness and less tedious to be understood. And if you call painting dumb poetry, the painter may call poetry blind painting. Now which is the worse defect? to be blind or dumb? Though the poet is as free as the painter in the invention of his fictions they are not so satisfactory to men as paintings; for, though poetry is able to describe forms, actions and places in words, the painter deals with the actual similitude of the forms, in order to represent them. Now tell me which is the nearer to the actual man: the name of man or the image of the man. The name of man differs in different countries, but his form is never changed but by death."

"The painter strives and competes with nature."

"We, by our arts may be called the grandsons of God."

"Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind."

"Ivy is of longevity."

"Fire destroys falsehood, that is sophistry, and restores truth, driving out darkness."

"Fire may be represented as the destroyer of all sophistry, and as the image and demonstration of truth; because it is light and drives out darkness which conceals all essences [or subtle things]."

"Fire destroys all sophistry, that is deceit; and maintains truth alone, that is gold."

"Truth at last cannot be hidden. Dissimulation is of no avail. Dissimulation is to no purpose before so great a judge. Falsehood puts on a mask. Nothing is hidden under the sun."

"Fire is to represent truth because it destroys all sophistry and lies; and the mask is for lying and falsehood which conceal truth."

"Movement will cease before we are weary of being useful."

"Movement will fail sooner than usefulness."

"When the sun appears which dispels darkness in general, you put out the light which dispelled it for you in particular for your need and convenience."

"Constancy does not begin, but is that which perseveres."

"Love, Fear, and Esteem, — Write these on three stones."

"Fame alone raises herself to Heaven, because virtuous things are in favour with God."

"Disgrace should be represented upside down, because all her deeds are contrary to God and tend to hell."

"Nothing is so much to be feared as Evil Report."

"I am still hopeful. A falcon, Time. But the coincidence is probably accidental."

"Truth here makes Falsehood torment lying tongues."

"Such as harm is when it hurts me not, is good which avails me not."

"He who offends others, does not secure himself."

"One's thoughts turn towards Hope."

"If you wish to make a figure in marble, first make one of clay, and when you have finished it, let it dry and place it in a case which should be large enough, after the figure is taken out of it, to receive also the marble, from which you intend to reveal the figure in imitation of the one in clay."

"Sculptured figures which appear in motion, will, in their standing position, actually look as if they were falling forward."

"To manage the large mould make a model of the small mould, make a small room in proportion."

"Of the horse I will say nothing because I know the times."

"The Common Sense, is that which judges of things offered to it by the other senses. The ancient speculators have concluded that that part of man which constitutes his judgment is caused by a central organ to which the other five senses refer everything by means of impressibility; and to this centre they have given the name Common Sense. And they say that this Sense is situated in the centre of the head between Sensation and Memory. And this name of Common Sense is given to it solely because it is the common judge of all the other five senses i.e. Seeing, Hearing, Touch, Taste and Smell. This Common Sense is acted upon by means of Sensation which is placed as a medium between it and the senses. Sensation is acted upon by means of the images of things presented to it by the external instruments, that is to say the senses which are the medium between external things and Sensation. In the same way the senses are acted upon by objects. Surrounding things transmit their images to the senses and the senses transfer them to the Sensation. Sensation sends them to the Common Sense, and by it they are stamped upon the memory and are there more or less retained according to the importance or force of the impression."

"Though human ingenuity may make various inventions which, by the help of various machines answering the same end, it will never devise any inventions more beautiful, nor more simple, nor more to the purpose than Nature does; because in her inventions nothing is wanting, and nothing is superfluous, and she needs no counterpoise when she makes limbs proper for motion in the bodies of animals. But she puts into them the soul of the body, which forms them that is the soul of the mother which first constructs in the womb the form of the man and in due time awakens the soul that is to inhabit it."

"The soul seems to reside in the judgment, and the judgment would seem to be seated in that part where all the senses meet; and this is called the Common Sense and is not all-pervading throughout the body, as many have thought. Rather is it entirely in one part. Because, if it were all-pervading and the same in every part, there would have been no need to make the instruments of the senses meet in one centre and in one single spot; on the contrary it would have sufficed that the eye should fulfil the function of its sensation on its surface only, and not transmit the image of the things seen, to the sense, by means of the optic nerves, so that the soul — for the reason given above — may perceive it in the surface of the eye."

"King of the animals — as thou hast described him — I should rather say king of the beasts, thou being the greatest — because thou hast spared slaying them, in order that they may give thee their children for the benefit of the gullet, of which thou hast attempted to make a sepulchre for all animals; and I would say still more, if it were allowed me to speak the entire truth . But we do not go outside human matters in telling of one supreme wickedness, which does not happen among the animals of the earth, inasmuch as among them are found none who eat their own kind, unless through want of sense."

"Our life is made by the death of others."

"The earth is not in the centre of the Sun's orbit nor at the centre of the universe, but in the centre of its companion elements, and united with them. And any one standing on the moon, when it and the sun are both beneath us, would see this our earth and the element of water upon it just as we see the moon, and the earth would light it as it lights us."

"And if you should say that the shells were carried by the waves, being empty and dead, I say that where the dead went they were not far removed from the living; for in these mountains living ones are found, which are recognisable by the shells being in pairs; and they are in a layer where there are no dead ones; and a little higher up they are found, where they were thrown by the waves, all the dead ones with their shells separated, near to where the rivers fell into the sea, to a great depth; like the Arno which fell from the Gonfolina near to Monte Lupo, where it left a deposit of gravel which may still be seen, and which has agglomerated; and of stones of various districts, natures, and colours and hardness, making one single conglomerate. And a little beyond the sandstone conglomerate a tufa has been formed, where it turned towards Castel Florentino; farther on, the mud was deposited in which the shells lived, and which rose in layers according to the levels at which the turbid Arno flowed into that sea. And from time to time the bottom of the sea was raised, depositing these shells in layers, as may be seen in the cutting at Colle Gonzoli, laid open by the Arno which is wearing away the base of it; in which cutting the said layers of shells are very plainly to be seen in clay of a bluish colour, and various marine objects are found there. And if the earth of our hemisphere is indeed raised by so much higher than it used to be, it must have become by so much lighter by the waters which it lost through the rift between Gibraltar and Ceuta; and all the more the higher it rose, because the weight of the waters which were thus lost would be added to the earth in the other hemisphere. And if the shells had been carried by the muddy deluge they would have been mixed up, and separated from each other amidst the mud, and not in regular steps and layers — as we see them now in our time."

"Men born in hot countries love the night because it refreshes them and have a horror of light because it burns them; and therefore they are of the colour of night, that is black. And in cold countries it is just the contrary. Therefore you need complementary to find equal balance amongst everything."

"I obey Thee Lord, first for the love I ought, in all reason to bear Thee; secondly for that Thou canst shorten or prolong the lives of men."

"Thou, O God, dost sell us all good things at the price of labour."

"O admirable impartiality of Thine, Thou first Mover; Thou hast not permitted that any force should fail of the order or quality of its necessary results."

"Necessity is the mistress and guide of nature."

"Necessity is the theme and the inventress, the eternal curb and law of nature."

"In many cases one and the same thing is attracted by two strong forces, namely Necessity and Potency. Water falls in rain; the earth absorbs it from the necessity for moisture; and the sun evaporates it, not from necessity, but by its power."

"Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end."

"Our body is dependent on heaven and heaven on the Spirit."

"The motive power is the cause of all life."

"O Man, who will discern in this work of mine the wonderful works of Nature, if you think it would be a criminal thing to destroy it, reflect how much more criminal it is to take the life of a man; and if this, his external form, appears to thee marvellously constructed, remember that it is nothing as compared with the soul that dwells in that structure; for that indeed, be it what it may, is a thing divine. Leave it then to dwell in His work at His good will and pleasure, and let not your rage or malice destroy a life — for indeed, he who does not value it, does not himself deserve it."

"The part always has a tendency to reunite with its whole in order to escape from its imperfection."

"Why does the eye see a thing more clearly in dreams than with the imagination being awake?"

"The senses are of the earth; Reason, stands apart in contemplation."

"Every action needs to be prompted by a motive. To know and to will are two operations of the human mind. Discerning, judging, deliberating are acts of the human mind."

"All our knowledge has its origin in our perceptions."

"Science is the observation of things possible, whether present or past; prescience is the knowledge of things which may come to pass, though but slowly."

"Experience, the interpreter between formative nature and the human race, teaches how that nature acts among mortals; and being constrained by necessity cannot act otherwise than as reason, which is its helm, requires her to act."

"Wisdom is the daughter of experience."

"Nature is full of infinite causes that have never occurred in experience."

"Truth was the only daughter of Time."

"Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments."

"Experience does not err; only your judgments err by expecting from her what is not in her power. Men wrongly complain of Experience; with great abuse they accuse her of leading them astray but they set Experience aside, turning from it with complaints as to our ignorance causing us to be carried away by vain and foolish desires to promise ourselves, in her name, things that are not in her power; saying that she is fallacious. Men are unjust in complaining of innocent Experience, constantly accusing her of error and of false evidence."

"Every instrument requires to be made by experience."

"The man who blames the supreme certainty of mathematics feeds on confusion, and can never silence the contradictions of sophistical sciences which lead to an eternal quackery."

"There is no certainty in sciences where one of the mathematical sciences cannot be applied, or which are not in relation with these mathematics."

"Any one who in discussion relies upon authority uses, not his understanding, but rather his memory. Good culture is born of a good disposition; and since the cause is more to be praised than the effect, I will rather praise a good disposition without culture, than good culture without the disposition."

"Science is the captain, and practice the soldiers."

"Those who fall in love with practice without science are like a sailor who enters a ship without a helm or a compass, and who never can be certain whither he is going."

"Now you see that the hope and the desire of returning home and to one's former state is like the moth to the light, and that the man who with constant longing awaits with joy each new spring time, each new summer, each new month and new year — deeming that the things he longs for are ever too late in coming — does not perceive that he is longing for his own destruction. But this desire is the very quintessence, the spirit of the elements, which finding itself imprisoned with the soul is ever longing to return from the human body to its giver. And you must know that this same longing is that quintessence, inseparable from nature, and that man is the image of the world."

"O Time! consumer of all things; O envious age! thou dost destroy all things and devour all things with the relentless teeth of years, little by little in a slow death. Helen, when she looked in her mirror, seeing the withered wrinkles made in her face by old age, wept and wondered why she had twice been carried away."

"O sleepers! what a thing is slumber! Sleep resembles death. Ah, why then dost thou not work in such wise as that after death thou mayst retain a resemblance to perfect life, when, during life, thou art in sleep so like to the hapless dead?"

"The knowledge of past times and of the places on the earth is both an ornament and nutriment to the human mind."

"To lie is so vile, that even if it were in speaking well of godly things it would take off something from God's grace; and Truth is so excellent, that if it praises but small things they become noble."

"Beyond a doubt truth bears the same relation to falsehood as light to darkness; and this truth is in itself so excellent that, even when it dwells on humble and lowly matters, it is still infinitely above uncertainty and lies, disguised in high and lofty discourses; because in our minds, even if lying should be their fifth element, this does not prevent that the truth of things is the chief nutriment of superior intellects, though not of wandering wits. But you who live in dreams are better pleased by the sophistical reasons and frauds of wits in great and uncertain things, than by those reasons which are certain and natural and not so far above us."

"Avoid studies of which the result dies with the worker."

"Men are in error when they lament the flight of time, accusing it of being too swift, and not perceiving that it is sufficient as it passes; but good memory, with which nature has endowed us, causes things long past to seem present."

"Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment."

"The acquisition of any knowledge is always of use to the intellect, because it may thus drive out useless things and retain the good. For nothing can be loved or hated unless it is first known."

"As a day well spent procures a happy sleep, so a life well employed procures a happy death."

"The water you touch in a river is the last of that which has passed, and the first of that which is coming. Thus it is with time present."

"Just as eating against one’s will is injurious to health, so studying without a liking for it spoils the memory, and it retains nothing it takes in."

"Just as iron rusts unless it is used, and water putrifies or, in cold, turns to ice, so our intellect spoils unless it is kept in use."

"You do ill if you praise, and still worse if you reprove in a matter you do not understand."

"It seems to me that men of coarse and clumsy habits and of small knowledge do not deserve such fine instruments nor so great a variety of natural mechanism as men of speculation and of great knowledge; but merely a sack in which their food may be stowed and whence it may issue, since they cannot be judged to be any thing else than vehicles for food; for it seems to me they have nothing about them of the human species but the voice and the figure, and for all the rest are much below beasts."

"Some there are who are nothing else than a passage for food and augmentors of excrement and fillers of privies, because through them no other things in the world, nor any good effects are produced, since nothing but full privies results from them."

"The greatest deception men suffer is from their own opinions."

"Blind ignorance misleads us thus and delights with the results of lascivious joys. Because it does not know the true light. Because it does not know what is the true light. Vain splendour takes from us the power of being .... behold! for its vain splendour we go into the fire, thus blind ignorance does mislead us. That is, blind ignorance so misleads us that... O! wretched mortals, open your eyes."

"That is not riches, which may be lost; virtue is our true good and the true reward of its possessor. That cannot be lost; that never deserts us, but when life leaves us. As to property and external riches, hold them with trembling; they often leave their possessor in contempt, and mocked at for having lost them."

"Man has much power of discourse which for the most part is vain and false; animals have but little, but it is useful and true, and a small truth is better than a great lie."

"He who possesses most must be most afraid of loss."

"He who wishes to be rich in a day will be hanged in a year."

"That man is of supreme folly who always wants for fear of wanting; and his life flies away while he is still hoping to enjoy the good things which he has with extreme labour acquired."

"We ought not to desire the impossible."

"Ask counsel of him who rules himself well."

"Chi non punisce il male comanda che si faccia."

"The grave will fall in upon him who digs it."

"You can have no dominion greater or less than that over yourself."

"Chi poco pensa, molto erra."

"It is easier to contend with evil at the first than at the last."

"Where there is most feeling, there is the greatest martyrdom."

"The memory of benefits is a frail defence against ingratitude."

"Reprove your friend in secret and praise him openly."

"Be not false about the past."

"Patience serves us against insults precisely as clothes do against the cold. For if you multiply your garments as the cold increases, that cold cannot hurt you; in the same way increase your patience under great offences, and they cannot hurt your feelings."

"To speak well of a base man is much the same as speaking ill of a good man."

"Envy wounds with false accusations, that is with detraction, a thing which scares virtue."

"We are deceived by promises and time disappoints us..."

"Fear arises sooner than anything else."

"Just as courage imperils life, fear protects it."

"Threats alone are the weapons of the threatened man."

"Wherever good fortune enters, envy lays siege to the place and attacks it; and when it departs, sorrow and repentance remain behind."

"He who walks straight rarely falls."

"It is bad if you praise, and worse if you reprove a thing, I mean, if you do not understand the matter well."

"It is ill to praise, and worse to reprimand in matters that you do not understand."

"The lover is moved by the beloved object as the senses are by sensual objects; and they unite and become one and the same thing. The work is the first thing born of this union; if the thing loved is base the lover becomes base."

"When the thing taken into union is perfectly adapted to that which receives it, the result is delight and pleasure and satisfaction."

"When that which loves is united to the thing beloved it can rest there; when the burden is laid down it finds rest there. There will be eternal fame also for the inhabitants of that town, constructed and enlarged by him."

"The city will gain beauty worthy of its name and to you it will be useful by its revenues, and the eternal fame of its aggrandizement."

"To preserve Nature's chiefest boon, that is freedom, I can find means of offence and defence, when it is assailed by ambitious tyrants, and first I will speak of the situation of the walls, and also I shall show how communities can maintain their good and just Lords."

"The false interpreters of nature declare that quicksilver is the common seed of every metal, not remembering that nature varies the seed according to the variety of the things she desires to produce in the world."

"Many have made a trade of delusions and false miracles, deceiving the stupid multitude. Pharisees — that is to say, friars."

"It is true that impatience, the mother of stupidity, praises brevity, as if such persons had not life long enough to serve them to acquire a complete knowledge of one single subject, such as the human body; and then they want to comprehend the mind of God in which the universe is included, weighing it minutely and mincing it into infinite parts, as if they had to dissect it!"

"Oh! human stupidity, do you not perceive that, though you have been with yourself all your life, you are not yet aware of the thing you possess most of, that is of your folly? and then, with the crowd of sophists, you deceive yourselves and others, despising the mathematical sciences, in which truth dwells and the knowledge of the things included in them. And then you occupy yourself with miracles, and write that you possess information of those things of which the human mind is incapable and which cannot be proved by any instance from nature. And you fancy you have wrought miracles when you spoil a work of some speculative mind, and do not perceive that you are falling into the same error as that of a man who strips a tree of the ornament of its branches covered with leaves mingled with the scented blossoms or fruit."

"The spirit has no voice, because where there is a voice there is a body, and where there is a body space is occupied, and this prevents the eye from seeing what is placed behind that space; hence the surrounding air is filled by the body, that is by its image."

"In order to prove whether the spirit can speak or not, it is necessary in the first place to define what a voice is and how it is generated."

"Every quantity is intellectually conceivable as infinitely divisible."

"Amid the vastness of the things among which we live, the existence of nothingness holds the first place; its function extends over all things that have no existence, and its essence, as regards time, lies precisely between the past and the future, and has nothing in the present. This nothingness has the part equal to the whole, and the whole to the part, the divisible to the indivisible; and the product of the sum is the same whether we divide or multiply, and in addition as in subtraction; as is proved by arithmeticians by their tenth figure which represents zero; and its power has not extension among the things of Nature."

"What is called Nothingness is to be found only in time and in speech. In time it stands between the past and future and has no existence in the present; and thus in speech it is one of the things of which we say: They are not, or they are impossible."

"O mighty and once living instrument of formative nature. Incapable of availing thyself of thy vast strength thou hast to abandon a life of stillness and to obey the law which God and time gave to procreative nature."

"O time, swift robber of all created things, how many kings, how many nations hast thou undone, and how many changes of states and of various events have happened since the wondrous forms of this fish perished here in this cavernous and winding recess. Now destroyed by time thou liest patiently in this confined space with bones stripped and bare; serving as a support and prop for the superimposed mountain."

"The Caladrius is a bird of which it is related that, when it is carried into the presence of a sick person, if the sick man is going to die, the bird turns away its head and never looks at him; but if the sick man is to be saved the bird never loses sight of him but is the cause of curing him of all his sickness. Like unto this is the love of virtue. It never looks at any vile or base thing, but rather clings always to pure and virtuous things and takes up its abode in a noble heart; as the birds do in green woods on flowery branches. And this Love shows itself more in adversity than in prosperity; as light does, which shines most where the place is darkest."

"The unicorn, through its intemperance and not knowing how to control itself, for the love it bears to fair maidens forgets its ferocity and wildness; and laying aside all fear it will go up to a seated damsel and go to sleep in her lap, and thus the hunters take it."

"We see the most striking example of humility in the lamb which will submit to any animal; and when they are given for food to imprisoned lions they are as gentle to them as to their own mother, so that very often it has been seen that the lions forbear to kill them."

"The cock does not crow till it has thrice flapped its wings; the parrot in moving among boughs never puts its feet excepting where it has first put its beak. Vows are not made till Hope is dead."

"A man was desired to rise from bed, because the sun was already risen. To which he replied: "If I had as far to go, and as much to do as he has, I should be risen by now; but having but a little way to go, I shall not rise yet.""

"First, of things relating to animals; secondly, of irrational creatures; thirdly of plants; fourthly, of ceremonies; fifthly, of manners; sixthly, of cases or edicts or quarrels; seventhly, of cases that are impossible in nature [paradoxes], as, for instance, of those things which, the more is taken from them, the more they grow. And reserve the great matters till the end, and the small matters give at the beginning."

"Men will seem to see new destructions in the sky. The flames that fall from it will seem to rise in it and to fly from it with terror. They will hear every kind of animals speak in human language. They will instantaneously run in person in various parts of the world, without motion. They will see the greatest splendour in the midst of darkness. O! marvel of the human race! What madness has led you thus! You will speak with animals of every species and they with you in human speech. You will see yourself fall from great heights without any harm and torrents will accompany you, and will mingle with their rapid course."

"There will be many who will eagerly and with great care and solicitude follow up a thing, which, if they only knew its malignity, would always terrify them. Of those men, who, the older they grow, the more avaricious they become, whereas, having but little time to stay, they should become more liberal."

"Many will be busied in taking away from a thing, which will grow in proportion as it is diminished."

"Oh! how foul a thing, that we should see the tongue of one animal in the guts of another."

"There will be great winds by reason of which things of the East will become things of the West; and those of the South, being involved in the course of the winds, will follow them to distant lands."

"There will be many men who will move one against another, holding in their hands a cutting tool. But these will not do each other any injury beyond tiring each other; for, when one pushes forward the other will draw back. But woe to him who comes between them! For he will end by being cut in pieces."

"That which was at first bound, cast out and rent by many and various beaters will be respected and honoured, and its precepts will be listened to with reverence and love."

"One who by himself is mild enough and void of all offence will become terrible and fierce by being in bad company, and will most cruelly take the life of many men, and would kill many more if they were not hindered by bodies having no soul, that have come out of caverns — that is, breastplates of iron."

"One shall be born from small beginnings which will rapidly become vast. This will respect no created thing, rather will it, by its power, transform almost every thing from its own nature into another."

"All the elements will be seen mixed together in a great whirling mass, now borne towards the centre of the world, now towards the sky; and now furiously rushing from the South towards the frozen North, and sometimes from the East towards the West, and then again from this hemisphere to the other."

"Men standing in opposite hemispheres will converse and deride each other and embrace each other, and understand each other's language."

"Many will there be who will give up work and labour and poverty of life and goods, and will go to live among wealth in splendid buildings, declaring that this is the way to make themselves acceptable to God."

"An infinite number of men will sell publicly and unhindered things of the very highest price, without leave from the Master of it; while it never was theirs nor in their power; and human justice will not prevent it."

"Animals will be seen on the earth who will always be fighting against each other with the greatest loss and frequent deaths on each side. And there will be no end to their malignity; by their strong limbs we shall see a great portion of the trees of the vast forests laid low throughout the universe; and, when they are filled with food the satisfaction of their desires will be to deal death and grief and labour and wars and fury to every living thing; and from their immoderate pride they will desire to rise towards heaven, but the too great weight of their limbs will keep them down. Nothing will remain on earth, or under the earth or in the waters which will not be persecuted, disturbed and spoiled, and those of one country removed into another. And their bodies will become the sepulture and means of transit of all they have killed. O Earth! why dost thou not open and engulf them in the fissures of thy vast abyss and caverns, and no longer display in the sight of heaven such a cruel and horrible monster."

"There will be many which will increase in their destruction."

"The East will be seen to rush to the West and the South to the North in confusion round and about the universe, with great noise and trembling or fury."

"The solar rays will kindle fire on the earth, by which a thing that is under the sky will be set on fire, and, being reflected by some obstacle, it will bend downwards."

"Happy will they be who lend ear to the words of the Dead."

"Men out of fear will cling to the thing they most fear."

"Things that are separate shall be united and acquire such virtue that they will restore to man his lost memory."

"The bones of the Dead will be seen to govern the fortunes of him who moves them."

"The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it."

"The ball of snow when, as it rolls, it descends from the snowy mountains, increases in size as it falls."

"A vase of unbaked clay, when broken, may be remoulded, but not a baked one."

"The image of the sun where it falls appears as a thing which covers the person who attempts to cover it."

"I have seen motions of the air so furious that they have carried, mixed up in their course, the largest trees of the forest and whole roofs of great palaces, and I have seen the same fury bore a hole with a whirling movement digging out a gravel pit, and carrying gravel, sand and water more than half a mile through the air."

"Like a whirling wind which rushes down a sandy and hollow valley, and which, in its hasty course, drives to its centre every thing that opposes its furious course... No otherwise does the Northern blast whirl round in its tempestuous progress..."

"It vexes me greatly that having to earn my living has forced me to interrupt the work and to attend to small matters."

"If you meet with any one who is virtuous do not drive him from you; do him honour, so that he may not have to flee from you and be reduced to hiding in hermitages, or caves or other solitary places to escape from your treachery; if there is such an one among you do him honour, for these are our Saints upon earth; these are they who deserve statues from us, and images..."

"May it please our great Author that I may demonstrate the nature of man and his customs, in the way I describe his figure."

"This writing distinctly about the kite seems to be my destiny, because among the first recollections of my infancy, it seemed to me that, as I was in my cradle, a kite came to me and opened my mouth with its tail, and struck me several times with its tail inside my lips."

"When I did well, as a boy you used to put me in prison. Now if I do it being grown up, you will do worse to me."

"Tell me if anything was ever done."

"Do not reveal, if liberty is precious to you; my face is the prison of love."

"I ask at what part of its curved motion the moving cause will leave the thing moved and moveable."

"If any man could have discovered the utmost powers of the cannon, in all its various forms and have given such a secret to the Romans, with what rapidity would they have conquered every country and have vanquished every army, and what reward could have been great enough for such a service! Archimedes indeed, although he had greatly damaged the Romans in the siege of Syracuse, nevertheless did not fail of being offered great rewards from these very Romans; and when Syracuse was taken, diligent search was made for Archimedes; and he being found dead greater lamentation was made for him by the Senate and people of Rome than if they had lost all their army; and they did not fail to honour him with burial and with a statue."

"Reserve the great matters till the end, and the small matters give at the beginning."

"Every part is disposed to unite with the whole, that it may thereby escape from its own incompleteness."

"The mind passes in an instant from east to west; and all the great incorporeal things resemble these very closely in speed."

"While I thought I have been learning how to live, I have been learning how to die."

"Intellectual passion drives out sensuality."

"Where there is most power of feeling, there of martyrs is the greatest martyr."

"Science, knowledge of the things that are possible present and past; prescience, knowledge of the things which may come to pass."

"To enjoy—to love a thing for its own sake and for no other reason."

"Observe the light and consider its beauty. Blink your eye and look at it. That which you see was not there at first, and that which was there is there no more."

"The water which rises in the mountain is the blood which keeps the mountain in life."

"He who does not value life does not deserve it."

"Nature is full of infinite causes which were never set forth in experience."

"Wine is good, but water is preferable at table."

"He who suffers time to slip away and does not grow in virtue the more one thinks about him the sadder one becomes. No man has a capacity for virtue who sacrifices honour for gain. Fortune is powerless to help one who does not exert himself. That man becomes happy who follows Christ. There is no perfect gift without great suffering. Our triumphs and our pomps pass away; gluttony and sloth and enervating luxury have banished every virtue from the world; so that as it were wandering from its course our nature is subdued by habit. Now and henceforth it is meet that you cure yourself of laziness. The Master has said that sitting on down or lying under the quilts will not bring thee to fame. He who without it has frittered life away leaves no more trace of himself upon the earth than smoke does in the air or the foam on the water."

"Since the wings are swifter to press the air than the air is to escape from beneath the wings the air becomes condensed and resists the movement of the wings; and the motive power of these wings by subduing the resistance of the air raises itself in a contrary movement to the movement of the wings."

"A bird makes the same use of wings and tail in the air as a swimmer does of his arms and legs in the water."

"Every body that is moved continues to move so long as the impression of the force of its mover is retained in it, therefore the movement of this wing with violence... will come to move the whole bird with it until the impetus of the moved air has been consumed."

"Remember that your bird should have no other model than the bat, because its membranes serve as an armour or rather as a means of building together the pieces of its armour, that is the framework of the wings."

"If you take as your pattern the wings of feathered birds, these are more powerful in structure of bone and sinew because they are penetrable, that is to say the feathers are separated from one another and the air passes through them. But the bat is aided by its membrane, which binds the whole together and is not penetrated by the air."

"You will perhaps say that the sinews and muscles of a bird are incomparably more powerful than those of a man... But the reply to this is that such great strength gives it a reserve of power beyond what it ordinarily uses..."

"Swimming upon water teaches men how birds do upon the air."

"The air which is struck with most swiftness by the movable thing is compressed to the greatest degree in itself."

"The function which the wing performs against the air when the air is motionless is the same as that of the air moved against the wings when these are without motion."

"It is always the under side of the branches of any plant that show themselves to the wind which strikes it, and one leans against the other."

"That part of the air which is nearest to the wing which presses on it, will have the greatest density."

"The properties of the air are such that it may become condensed or rarefied."

"No impetus created by any movement whatever can be immediately consumed, but if it finds an object which has a great resistance it consumes itself in a reflex movement."

"Impetus is a power of the mover applied in a movable thing which causes the movable thing to move after it is separated from its mover."

"Painting is concerned with all the ten attributes of sight, namely darkness and brightness, substance and colour, form and place, remoteness and nearness, movement and rest; and it is with these attributes that this my small book will be woven, recalling to the painter by what rules and in what way he ought by his art to imitate all things that are the work of nature and the adornment of the world."

"Whenever you make a figure of a man or of some graceful animal remember to avoid making it seem wooden; that is it should move with counterpoise and balance in such a way as not to seem a block of wood."

"I give the degrees of things seen by the eye as the musician does of the sounds heard by the ear."

"When you have drawn the same thing so many times that it seems that you know it by heart try to do it without the model; but having a tracing made of the model upon a thin piece of smooth glass and lay this upon the drawing you have made without the model. ...where you find that you have erred bear it in mind in order not to make the mistake again. ...if you cannot procure smooth glass to make a tracing... take a piece of very fine parchment well oiled and then dried, and when you have used it for for one drawing you can wipe this out with a sponge and do a second."

"Take a piece of glass of the size of a half sheet of royal folio paper, and fix it... between your eye and the object you wish to portray. Then move it away until your eye is two-thirds of a braccio away from the piece of glass, and fasten your head by means of an instrument in such a way as to prevent any movement of it whatsoever. Then close or cover up one eye, and with a brush or a piece of red chalk finely ground mark out on the glass what is visible beyond it; afterwards, copy it by tracing on paper from the glass, then prick it out upon paper of a better quality and paint it if you so desire, paying special attention to the aerial perspective."

"If you wish to thoroughly accustom yourself to correct and good positions for your fingers, fasten a frame or a loom divided into squares by threads between your eye and the nude figure which you are representing, and then make the same squares upon the paper where you wish to draw the said nude but very faintly. You should then put a pellet of wax on a part of the network to serve as a mark which as you look at your model should always cover the pit of the throat, or if he should have turned his back make it cover one of the vertebrae of the neck. ...The squares you draw may be as much smaller than those of the network in proportion as you wish your figure to be less than life size..."

"When you wish to see whether the general effect of your picture corresponds with that of the object represented after nature, take a mirror and set it so that it reflects the actual thing, and then compare the reflection with your picture, and consider carefully whether the subject of the two images is in conformity with both, studying especially the mirror. The mirror ought to be taken as a guide... you see the picture made upon one plane showing things which appear in relief, and the mirror upon one plane does the same. The picture is on one single surface, and the mirror is the same. ...if you but know well how to compose your picture it will also seem a natural thing seen in a great mirror."

"You know that in an atmosphere of uniform density the most distant things seen through it, such as the mountains, in consequence of the great quantity of atmosphere which is between your eye and them, will appear blue. Therfore you should make the building... wall which is more distant less defined and bluer. ...five times as far away make five times as blue."

"Painting embraces and contains within itself all the things which nature produces or which results from the fortuitous actions of men... he is but a poor master who makes only a single figure well."

"Surely when a man is painting a picture he ought not refuse to hear any man's opinion... Since men are able to form a true judgement as to the works of nature, how much more does it behoove us to admit that they are able to judge our faults. Therefore you should be desirous of hearing patiently the opinions of others, and consider and reflect carefully whether or no he who censures you has reason for his censure; and correct your work if you find that he is right, but if not, then let it seem that you have not understood him, or, in case he is a man whom you esteem, show him by argument why it is that he is mistaken."

"Happy will be those who give ear to the words of the dead:—The reading of good works and the observing of their precepts."

"Feathers shall raise men towards the heaven even as they do the birds:—That is by the letters written by their quills."

"Things severed shall be united and shall acquire of themselves such virtue that they shall restore to men their lost memory:—That is the papyrus sheets, which are formed out of several strips and preserve the memory of the thoughts and deeds of men."

"Men will deal rude blows to that which is the cause of their life:—They will thrash the grain."

"The wind which passes through the skins of animals will make men leap up:—That is the bagpipes, which cause men to dance."

"Simplicity is the ultimate sophistication."

"Knowing is not enough; we must apply. Being willing is not enough; we must do."

"Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."

"I have from an early age abjured the use of meat, and the time will come when men such as I will look upon the murder of animals as they now look upon the murder of men."

"Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works. If it works big, others quickly copy it. Then you do something else. The trick is the doing something else."

"I awoke, only to find that the rest of the world is still asleep."

"Studying Leonardo... will not only allow us to recognize his science as a solid body of knowledge. It will also show why it cannot be understood without his art, nor his art without the science."

"For Leonardo, painting is both an art and a science..."

"Leonardo is the hamlet of art history whom each of us must recreate for ourselves."

"The genius of Leonardo as a painter came through unfolding the mystery of life..."Look at the grace and sweetness of men and women in the street," he wrote. The most ordinary functions of life and nature amazed him most. He observed of the eye how in it form and colour, and the entire universe it reflected, were reduced to a single point. "Wonderful law of nature, which forced all effects to participate with their cause in the mind of man. These are the true miracles!" Elsewhere he wrote again: "Nature is full of infinite reasons which have not yet passed into experience.""

"He conceived it to be the painter's duty not only to comment on natural phenomena as restrained by law, but to merge his very mind into that of nature by interpreting its relation with art... The whole world was full of a mystery to him, which his work reflected. The smile of consciousness, pregnant of that which is beyond, illumines the expression of Dino Lisa."

"Leonardo had found a refuge in art from the pettiness of material environment. Like his own creations, he, too, had learned the secret of the inner life. The painter, he wrote, could create a world of his own, and take refuge in this new realm. But it must not be one of shadows only. The very mystery he felt so keenly had yet to rest on a real foundation; to treat it otherwise would be to plunge into mere vapouring. Although attempting to bridge the gulf which separated the real from the unreal, he refused to treat the latter supernaturally. That mystery which lesser minds found in the occult, he saw in nature all about him."

"His art took, thus, its guidance in realism, its purpose in spirituality. The search for truth and the desire for beauty were the twin ideals he strove to attain. The keenness of this pursuit saved him from the blemish of egoism which aloofness from his surroundings would otherwise have forced upon him. For his character presented the anomaly, peculiar to the Renaissance, of a lofty idealism coupled in action with irresponsibility of duty. He stood on a higher plane, his attitude toward life recognizing no claims on the part of his fellowmen. In his desire to surpass himself, fostered by this isolation of spirit and spurred on by the eager wish to attain universal knowledge, he has been compared to Faust; but the likeness is only half correct. He was not blind to the limitations which encompassed him, his very genius making him realize their bounds. Of the ancients he said that in attempting to define the nature of the soul, they sought the impossible. He wrote elsewhere, "It is the infinite alone that cannot be attained, for if it could it would become finite.""

"He was like a man who awoke too early in the darkness, while the others were all still asleep."

"Much as Leonardo da Vinci and other Renaissance artists used the revelations of human anatomy to help them depict the body more accurately and compellingly, so, too, many contemporary artists may create new forms of representation in response to revelations about how the brain works."

"Incredibly endowed both physically and mentally, he achieved greatness as a linguist, botanist, zoologist, anatomist, geologist, musician, sculptor, painter, architect, inventor, and engineer. Leonardo made quite a point of distrusting the knowledge that scholars professed so dogmatically. These men of book learning he described as strutting about puffed up and pompous, adorned not by their own labors but by the labors of others whose work they merely repeated... they did not deal with the real world."

"Leonardo did believe in the combination of theory and practice."

"Reading Leonardo one finds many statements suggesting that he was a learned mathematician and a profound philosopher who worked on the level of a professional mathematician. ...To pass beyond observation and experience there was for him only one trustworthy road through deceptions and mirages—mathematics. ...On the basis of such pronouncements, no doubt, Leonardo is often credited with being a greater mathematician than he actually was. When one examines Leonardo's notebooks one realizes how little he knew of mathematics and that his approach was empirical and intuitive."

"What thinker has ever possessed the cosmic vision so insistently? He sought to establish the essential unity of structure of all living things, the earth an organism with veins and arteries, the body of a man a type of that of the world."

"I sometimes dwell on the fact that there's one thing that time and humankind will not be able to take away from me, leaving me rich, richer than Croesus: the bliss that I derive from a Heine poem, from a Beethoven sonata or a DaVinci painting."

"The more the manuscripts of Leonardo are studied, the more one begins to see him not so much as a transcendent artist, but primarily as a man of science, whose skills and commissions as an artist and engineer enabled him to support his fascination with nature."

"Leonardo da Vinci commented, "By the ancients man has been called the world in miniature; and certainly this name is well bestowed because, inasmuch as man is composed of earth, water, air, and fire his body resembles that of the earth.""

"Owing to this favor I need to have no fear of want to the end of my life, and being thus laid under obligation I began to write this work for you, because I saw that you have built and are now building extensively, and that in future also you will take care that our public and private buildings shall be worthy to go down to posterity by the side of your other splendid achievements."

"The architect should be equipped with knowledge of many branches of study and varied kinds of learning, for it is by his judgement that all work done by the other arts is put to test. This knowledge is the child of practice and theory."

"Architects who have aimed at acquiring manual skill without scholarship have never been able to reach a position of authority to correspond to their pains, while those who relied only upon theories and scholarship were obviously hunting the shadow, not the substance. But those who have a thorough knowledge of both, like men armed at all points, have the sooner attained their object and carried authority with them."

"In all matters but particularly in architecture ...that which is signified is the subject of which we may be speaking and that which gives significance is a demonstration on scientific principles. ...One who professes himself an architect should be well versed in both directions."

"Neque enim ingenium sine disciplina aut disciplina sine ingenio perfectum artificem potest efficere."

"Let him [who would be an architect] be educated, skillful with the pencil, instructed in geometry, know much history, have followed the philosophers with attention, understand music, have some knowledge of medicine, know the opinions of the jurists, and be acquainted with astronomy and the theory of the heavens."

"An architect ought to be an educated man so as to leave a more lasting remembrance in his treatises."

"Geometry... is of much assistance in architecture, and in particular it teaches us the use of the rule and compasses, by which especially we acquire readiness in making plans for buildings in their grounds, and rightly apply the square, the level, and the plummet. By means of optics... the light in buildings can be drawn from fixed quarters of the sky. ...Difficult questions involving symmetry are solved by means of geometrical theories and methods."

"As for philosophy, it makes an architect high-minded and not self-assuming, but rather renders him courteous, just, and honest without avariciousness. This is very important, for no work can be rightly done without honesty and incorruptibility."

"Philosophy treats of physics where a more careful knowledge is required because the problems which come under this head are numerous... So the reader of Ctesibius or Archimedes and the other writers of treatises of the same class will not be able to appreciate them unless he has been trained in these subjects by the philosophers."

"Music, also, the architect ought to understand so that he may have knowledge of the canonical and mathematical theory, and besides be able to tune ballistae, catapultae, and scorpiones to the proper key. For to the right and left in the beams are the holes in the frames through which the strings of twisted sinew are stretched by means of windlasses and bars, and these strings must not be clamped and made fast until they give the same correct note to the ear of the skilled workman."

"In theatres... there are the bronze vessels in which are placed in niches under the seats in accordance with the musical intervals on mathematical principles. These vessels are arranged with a view to musical concords or harmony, and apportioned in the compass of the fourth, the fifth, and the octave, and so on up to the double octave, in such a way that when the voice of an actor falls in unison with any of them its power is increased, and it reaches the ears of the audience with greater clearness and sweetness. Water organs too, and the other instruments which resemble them cannot be made by one who is without the principles of music."

"The architect should also have a knowledge of the study of medicine on account of the questions of climates, air, the healthiness and unhealthiness of sites, and the use of different waters. For without these considerations the healthiness of a dwelling cannot be assured."

"As for principles of law, he should know those which are necessary in the case of buildings having party walls, with regard to water dripping from the eaves, and also the laws about drains, windows, and water supply. And other things of this sort should be known to architects, so that... they may be careful not to leave disputed points for the householders to settle after the works are finished, and so that in drawing up contracts the interests of both employer and contractor may be wisely safe-guarded."

"From astronomy we find the east, west, south, and north, as well as the theory of the heavens, the equinox, solstice, and courses of the stars. If one has no knowledge of these matters, he will not be able to have any comprehension of the theory of sundials."

"Men have no right to profess themselves architects hastily, without having climbed from boyhood the steps of these studies and thus, nursed by the knowledge of many arts and sciences, having reached the heights of the holy ground of architecture."

"A liberal education forms... a single body. Those, therefore, who from tender years receive instruction in the various forms of learning, recognize the same stamp on all the arts, and an intercourse between all studies, and so they more readily comprehend them all."

"In the midst of all this great variety of subjects, an individual cannot attain to perfection in each, because it is scarcely in his power to take in and comprehend the general theories of them."

"Pytheos made a mistake by not observing that the arts are each composed of two things, the actual work and the theory of it. One of these, the doing of the work, is proper to men trained in the individual subject, while the other the theory is common to all scholars."

"Astronomers... have a common ground for discussion with musicians in the harmony of the stars and musical concords in tetrads and triads of the fourth and the fifth, and with geometricians in the subject of vision; and in all other sciences many points, perhaps all, are common so far as the discussion of them is concerned. But the actual undertaking of works which are brought to perfection by the hand and its manipulation is the function of those who have been specially trained to deal with a single art."

"As for men upon whom nature has bestowed so much ingenuity, acuteness, and memory that they are able to have a thorough knowledge of geometry, astronomy, music, and the other arts, they go beyond the functions of architects and become pure mathematicians. Hence they can readily take up positions against those arts because many are the artistic weapons with which they are armed. Such men, however, are rarely found, but there have been such at times; for example, Aristarchus of Samos, Philolaus, and Archytas of Tarentum, Apollonius of Perga, Eratosthenes of Cyrene, and among Syracusans Archimedes and Scopinas, who through mathematics and natural philosophy discovered, expounded, and left to posterity many things in connection with mechanics and with sundials."

"It is not as a very great philosopher, nor as an eloquent rhetorician, nor as a grammarian trained in the highest principles of his heart, that I have striven to write this work, but as an architect who has had only a dip into those studies."

"As regards the efficacy of the art and the theories of it, I promise and expect that in these volumes I shall undoubtedly show myself of very considerable importance not only to builders but also to all scholars."

"Architecture depends on Order, Arrangement, Eurythmy, Symmetry, Propriety, and Economy."

"Order gives due measure to the members of a work considered separately, and symmetrical agreement to the proportions of the whole. It is an adjustment according to quantity. By this I mean the selection of modules from the members of the work itself and, starting from these individual parts of members, constructing the whole work to correspond."

"Arrangement includes the putting of things in their proper places and the elegance of effect which is due to adjustments appropriate to the character of the work. Its forms of expression are these: ground plan, elevation, and perspective. ...All three come of reflexion and invention."

"Reflexion is careful and laborious thought, and watchful attention directed to the agreeable effect of one's plan. Invention, on the other hand, is the solving of intricate problems and the discovery of new principles by means of brilliancy and versatility."

"Eurythmy is beauty and fitness in the adjustments of the members. This is found when the members of a work are of a height suited to their breadth, of a breadth suited to their length, and, in a word, when they all correspond symmetrically."

"Propriety is that perfection of style which comes when a work is authoritatively constructed on approved principles. It arises from prescription, from usage, or from nature."

"From prescription, in the case of hypaethral edifices, open to the sky, in honor of Jupiter Lightning, the Heaven, the Sun, or the Moon: for these are gods whose semblances and manifestations we behold before our very eyes in the sky when it is cloudless and bright."

"The construction of temples of the Ionic order to Juno, Diana, Father Bacchus, and the other gods of that kind, will be in keeping with the middle position which they hold; for the building of such will be an appropriate combination of the severity of the Doric and the delicacy of the Corinthian."

"There will be no propriety in the spectacle of an elegant interior approached by a low mean entrance."

"There will... be natural propriety in using an eastern light for bedrooms and libraries, a western light in winter for baths and winter apartments, and a northern light for picture galleries and other places in which a steady light is needed; for that quarter of the sky grows neither light nor dark with the course of the sun, but remains steady and unshifting all day long."

"Economy denotes the the proper management of materials and of site, as well as a thrifty balancing of cost and common sense in the construction of works. ...the architect does not demand things which cannot be found or made ready without great expense. For example: it is not everywhere that there is plenty of pitsand, rubble, fir, clear fir, and marble... Where there is no pitsand, we must use the kinds washed up by rivers or by the sea... and other problems we must solve in similar ways."

"The proper form of economy must be observed in building houses for each and every class."

"There are three departments of architecture: the art of building, the making of time-pieces, and the construction of machinery."

"All... must be built with due reference to durability, convenience, and beauty. Durability will be assured when foundations are carried down to the solid ground and materials wisely and liberally selected; convenience, when the arrangement of the apartments is faultless and presents no hindrance to use, and when each class of building is assigned to its suitable and appropriate exposure; and beauty, when the appearance of the work is pleasing and in good taste, and when its members are in due proportion according to correct principles of symmetry."

"When the morning breezes blow toward the town at sunrise, if they bring with them mists from marshes and, mingled with the mist, the poisonous breath of the creatures of the marshes to be wafted into the bodies of the inhabitants, they will make the site unhealthy."

"Nobody draws the light for covered wine rooms from the south or west, but rather from the north, since that quarter is never subject to change but is always constant and unshifting. So it is with granaries: grain exposed to the sun's course soon loses its good quality, and provisions and fruit, unless stored in a place unexposed to the sun's course, do not keep long."

"Heat is a universal solvent, melting out of things their power of resistance, and sucking away and removing their natural strength with its fiery exhalations so that they grow soft, and hence weak, under its glow."

"While all bodies are composed of the four elements, that is, of heat, moisture, the earthy, and air, yet there are mixtures according to natural temperament which make up the natures of all the different animals of the world, each after its kind."

"If one of these elements, heat, becomes predominant in any body whatsoever, it destroys and dissolves all the others with its violence. ...Again if too much moisture enters the channels of a body, and thus introduces disproportion, the other elements, adulterated by the liquid, are impaired, and the virtues of the mixture dissolved. This defect, in turn, may arise from the cooling properties of moist winds and breezes blowing upon the body. In the same way, increase or diminution of the proportion of air or of the earthy which is natural to the body may enfeeble the other elements."

"Our ancestors, when about to build a town or an army post, sacrificed some of the cattle that were wont to feed on the site proposed and examined their livers. If the livers of the first victims were dark-coloured or abnormal, they sacrificed others, to see whether the fault was due to disease or their food. They never began to build defensive works in a place until after they had made many such trials and satisfied themselves that good water and food had made the liver sound and firm. ...healthfulness being their chief object."

"From food and water, then, we may learn whether sites are naturally unhealthy or healthy."

"Marshes that are stagnant and have no outlets either by rivers or ditches, like the Pomptine marshes, merely putrefy as they stand, emitting heavy, unhealthy vapors. A case of a town built in such a spot was Old Salpia in Apulia... Year after year there was sickness, until finally the suffering inhabitants came with a public petition to Marcus Hostilius and got him to agree to seek and find them a proper place to which to remove their city."

"After insuring on these principles the healthfulness of the future city... the next thing to do is to lay the foundations for the towers and walls. Dig down to solid bottom, if it can be found, and lay them therein, going as deep as the magnitude of the proposed work seems to require. They should be much thicker than the part of the walls that will appear above ground and their structure should be as solid as it can possibly be laid."

"Towns should be laid out not as an exact square nor with salient angles, but in circular form, to give a view of the enemy from many points. Defense is difficult where there are salient angles because the angle protects the enemy rather than the inhabitants."

"The thickness of the wall should, in my opinion, be such that armed men meeting on top of it may pass one another without interference. In the thickness there should be set a very close succession of ties made of charred olive wood, binding the two faces of the wall together like pins, to give it lasting endurance. For that is a material which neither decay, nor the weather, nor time can harm, but even though buried in the earth or set in the water it keeps sound and useful forever. And so not only city walls but substructures in general and all walls that require a thickness like that of a city wall, will be long in falling to decay if tied in this manner."

"The towers themselves must be either round or polygonal. Square towers are sooner shattered by military engines, for the battering rams pound their angles to pieces but in the case of round towers they can do no harm being engaged as it were in driving wedges to their center."

"The system of fortification by wall and towers may be made safest by the addition of earthen ramparts."

"Lay a second foundation enough inside the first... Having laid these two foundations... build cross walls between them uniting the outer and inner foundation in a comb like arrangement set like teeth of a saw. With this form of construction the burden of earth will be distributed into small bodies and will not lie with all its weight in one crushing mass so as to thrust out substructures."

"Dimension stone, flint, rubble, burnt or unburnt brick,—use them as you find them. For it is not every neighborhood or particular locality that can have a wall built of burnt brick like that at Babylon, where there was plenty of asphalt to take the place of lime and sand, and yet possibly each may be provided with materials of equal usefulness so that out of them a faultless wall may be built to last forever."

"Cold winds are disagreeable, hot winds enervating, moist winds unhealthy."

"Wind is a flowing wave of air, moving hither and thither indefinitely. It is produced when heat meets moisture, the rush of heat generating a mighty current of air. That this is the fact we may learn from bronze eolipiles, and thus by means of a scientific invention discover a divine truth lurking in the laws of the heavens. Eolipiles are hollow bronze balls, with a very small opening through which water is poured into them. Set before a fire, not a breath issues from them before they get warm; but as soon as they begin to boil, out comes a strong blast due to the fire. Thus from this slight and very short experiment we may understand and judge of the mighty and wonderful laws of the heavens and the nature of winds."

"The diseases which are hard to cure in neighborhoods... are catarrh, hoarseness, coughs, pleurisy, consumption, spitting of blood, and all others that are cured not by lowering the system but by building it up. They are hard to cure, first, because they are originally due to chills; secondly, because the patient's system being already exhausted by disease, the air there, which is in constant agitation owing to winds and therefore deteriorated, takes all the sap of life out of their diseased bodies and leaves them more meager every day. On the other hand, a mild, thick air, without drafts and not constantly blowing back and forth, builds up their frames by its unwavering steadiness, and so strengthens and restores people who are afflicted with these diseases."

"Some have held that there are only four winds: Solanus from the east; Auster from the south; Favonius from due west; Septentrio from the north. But more careful investigators tell us that there are eight."

"To find the directions and quarters of the winds your method of procedure should be as follows. In the middle of the city place a marble amussium, laying it true by the level, or else let the spot be made so true by means of rule and level that no amussium is necessary. In the very center of that spot set up a bronze gnomon or "shadow tracker." At about the fifth hour in the morning, take the end of the shadow cast by this gnomon, and mark it with a point. Then, opening your compasses to this point which marks the length of the gnomon's shadow, describe a circle from the center. In the afternoon watch the shadow of your gnomon as it lengthens, and when it once more touches the circumference of this circle and the shadow in the afternoon is equal in length to that of the morning, mark it with a point. From these two points describe with your compasses intersecting arcs and through their intersection and the centre let a line be drawn to the circumference of the circle to give us the quarters of south and north. ...and thus we have designed a figure equally apportioned among the eight winds."

"Let the directions of your streets and alleys be laid down on the lines of division between the quarters of two winds. On this principle of arrangement the disagreeable force of the winds will be shut out from dwellings and lines of houses. For if the streets run full in the face of the winds, their constant blasts rushing in from the open country, and then confined by narrow alleys, will sweep through them with great violence. The lines of houses must therefore be directed away from the quarters from which the winds blow, so that as they come in they may strike against the angles of the blocks and their force thus be broken and dispersed."

"Remembering... that Eratosthenes of Cyrene, employing mathematical theories and geometrical methods, discovered from the course of the sun, the shadows cast by an equinoctial gnomon, and the inclination of the heaven that the circumference of the earth is two hundred and fifty-two thousand stadia, that is, thirty-one million five hundred thousand paces."

"There are... many... names for winds derived from localities or from the squalls which sweep from rivers or down mountains."

"There are the breezes of early morning; for the sun on emerging from beneath the earth strikes humid air as he returns, and as he goes climbing up the sky he spreads it out before him, extracting breezes from the vapor that was there before the dawn."

"Some people do indeed say that Eratosthenes could not have inferred the true measure of the earth. Whether true or untrue, it cannot affect the truth of what I have written on the fixing of the quarters from which the different winds blow."

"If the city is on the sea, we should choose ground close to the harbor as the place where the forum is to be built; but if inland, in the middle of the town."

"For the temples, the sites for those of the gods under whose particular protection the state is thought to rest and for Jupiter, Juno, and Minerva, should be on the very highest point commanding a view of the greater part of the city. Mercury should be in the forum, or, like Isis and Serapis, in the emporium; Apollo and Father Bacchus near the theater; Hercules at the circus in communities which have no gymnasia nor amphitheatres; Mars outside the city but at the training ground, and so Venus, but at the harbor. It is moreover shown by the Etruscan diviners in treatises on their science that the fanes of Venus, Vulcan, and Mars should be situated outside the walls, in order that the young men and married women may not become habituated in the city to the temptations incident to the worship of Venus, and that buildings may be free from the terror of fires through the religious rites and sacrifices which call the power of Vulcan beyond the walls. As for Mars, when that divinity is enshrined outside the walls, the citizens will never take up arms against each other, and he will defend the city from its enemies and save it from danger in war."

"Ceres also should be outside the city in a place to which people need never go except for the purpose of sacrifice."

"His strange appearance made the people turn round, and this led Alexander to look at him. In astonishment he gave orders to make way for him to draw near, and asked who he was. "Dinocrates," quoth he, "a Macedonian architect, who brings thee ideas and designs worthy of thy renown. I have made a design for the shaping of Mount Athos into the statue of a man, in whose left hand I have represented a very spacious fortified city, and in his right a bowl to receive the water of all the streams which are in that mountain, so that it may pour from the bowl into the sea.""

"Quoth he [ Alexander ] "...as a newborn babe cannot be nourished without the nurse's milk, nor conducted to the approaches that lead to growth in life, so a city cannot thrive without fields and the fruits thereof pouring into its walls.""

"Dinocrates did not leave the king, but followed him into Egypt. There Alexander, observing a harbor rendered safe by nature, an excellent center for trade, cornfields throughout all Egypt, and the great usefulness of the mighty river Nile, ordered him to build the city of Alexandria, named after the king. This was how Dinocrates, recommended only by his good looks and dignified carriage, came to be so famous."

"But as for me, Emperor, nature has not given me stature, age has marred my face, and my strength is impaired by ill health. Therefore, since these advantages fail me, I shall win your approval, as I hope, by the help of my knowledge and my writings."

"I will prefix the motives which originally gave rise to buildings and the development of inventions in this field, following in the steps of early nature and of those writers who have devoted treatises to the origins of civilization and the investigation of inventions. My exposition will, therefore, follow the instruction which I have received from them."

"They drew near, and observing that they were very comfortable standing before the warm fire, they put on logs and, while thus keeping it alive, brought up other people to it, showing them by signs how much comfort they got from it. In that gathering of men, at a time when utterance of sound was purely individual, from daily habits they fixed upon articulate words just as these had happened to come; then, from indicating by name things in common use, the result was that in this chance way they began to talk, and thus originated conversation with one another."

"Therefore it was the discovery of fire that originally gave rise to the coming together of men, to the deliberate assembly, and to social intercourse."

"And so, as they kept coming together in greater numbers into one place, finding themselves naturally gifted beyond the other animals in not being obliged to walk with faces to the ground, but upright and gazing upon the splendor of the starry firmament, and also in being able to do with ease whatever they chose with their hands and fingers, they began in that first assembly to construct shelters. Some made them of green boughs, others dug caves on mountain sides, and some, in imitation of the nests of swallows and the way they built, made places of refuge out of mud and twigs. Next, by observing the shelters of others and adding new details to their own inceptions they constructed better and better kinds of huts as time went on."

"At first they set up forked stakes connected by twigs and covered these walls with mud. Others made walls of lumps of dried mud, covering them with reeds and leaves to keep out the rain and the heat. Finding that such roofs could not stand the rain during the storms of winter, they built them with peaks daubed with mud, the roofs sloping and projecting so as to carry off the rain water."

"The Phrygians... select a natural hillock, run a trench through the middle of it, dig passages, and extend the interior space as widely as the site admits. Over it they build a pyramidal roof of logs fastened together, and this they cover with reeds and brushwood, heaping up very high mounds of earth above their dwellings. Thus their fashion in houses makes their winters very warm and their summers very cool."

"From these early beginnings, and from the fact that nature had... equipped their minds with the powers of thought and understanding, thus putting all other animals under their sway, they next gradually advanced from the construction of buildings to the other arts and sciences, and so passed from a rude and barbarous mode of life to civilization and refinement."

"Taking courage and looking forward from the standpoint of higher ideas born of the multiplication of the arts, they gave up huts and began to build houses with foundations, having brick or stone walls, and roofs of timber and tiles; next, observation and application led them from fluctuating and indefinite conceptions to definite rules of symmetry. Perceiving that nature had been lavish in the bestowal of timber and bountiful in stores of building material, they... embellished them with luxuries."

"This book does not show of what architecture is composed, but treats of the origin of the building art, how it was fostered, and how it made progress, step by step, until it reached its present perfection."

"There is no kind of material, no body, and no thing that can be produced or conceived of, which is not made up of elementary particles; and nature does not admit of a truthful exploration in accordance with the doctrines of the physicists without an accurate demonstration of the primary causes of things, showing how and why they are as they are."

"Thales thought that water was the primordial substance of all things. Heraclitus of Ephesus... thought that it was fire. Democritus and his follower Epicurus thought that it was the atoms, termed by our writers "bodies that cannot be cut up" or, by some "indivisibles." The school of the Pythagoreans added air and the earthy to the water and fire. Hence, although Democritus did not in a strict sense name them, but spoke only of indivisible bodies, yet he seems to have meant these same elements, because when taken by themselves they cannot be harmed, nor are they susceptible of dissolution, nor can they be cut up into parts, but throughout time eternal they forever retain an infinite solidity."

"All things... appear to be made up and produced by the coming together of these elements, so that they have been distributed by nature among an infinite number of kinds of things. Hence I believed it right to treat of the diversity and practical peculiarities of these things as well as of the qualities which they exhibit in buildings, so that persons who are intending to build may understand them and so make no mistake, but may gather materials which are suitable to use in their buildings."

"Bricks... should not be made of sandy or pebbly clay, or of fine gravel, because when made of these kinds they are in the first place heavy; and secondly when washed by the rain as they stand in walls, they go to pieces and break up, and the straw in them does not hold together on account of the roughness of the material. They should rather be made of white and chalky or of red clay, or even of a coarse grained gravelly clay. These materials are smooth and therefore durable; they are not heavy to work with, and are readily laid."

"Bricks should be made in Spring or Autumn so that they may dry uniformly."

"Bricks will be most serviceable if made two years before using; for they cannot dry thoroughly in less time. When fresh undried bricks are used in a wall, the stucco covering stiffens and hardens into a permanent mass, but the bricks settle and... the motion caused by their shrinking prevents them from adhering to it, and they are separated from their union with it. ...at Utica in constructing walls they use brick only if it is dry and made five years previously, and approved as such by the authority of a magistrate."

"There are also half bricks. ...As the bricks are always laid so as to break joints, this lends strength and a not unattractive appearance to both sides of such walls."

"In the states of Maxilua and Callet, in Further Spain, as well as in Pitane in Asia Minor, there are bricks which, when finished and dried, will float on being thrown into water. The reason why they can float seems to be that the clay of which they are made is like pumice-stone. So it is light, and also it does not, after being hardened by exposure to the air, take up or absorb liquid. ...They have therefore great advantages; for they are not heavy to use in building and, once made, they are not spoiled by bad weather."

"In walls of masonry the first question must be with regard to the sand, in order that it may be fit to mix into mortar and have no dirt in it. The kinds of pitsand are these: black, gray, red, and carbuncular. Of these the best will be found to be that which crackles when rubbed in the hand, while that which has much dirt in it will not be sharp enough. Again: throw some sand upon a white garment and then shake it out; if the garment is not soiled and no dirt adheres to it, the sand is suitable."

"If there are no sandpits from which it can be dug, then we must sift it out from river beds or from gravel or even from the sea beach. This kind however has these defects when used in masonry: it dries slowly... and such a wall cannot carry vaultings. Furthermore, when sea-sand is used in walls and these are coated with stucco, a salty efflorescence is given out which spoils the surface."

"Pitsand used in masonry dries quickly, the stucco coating is permanent, and the walls can support vaultings. I am speaking of sand fresh from the sandpits. For if it lies unused too long after being taken out, it is disintegrated by exposure to sun, moon, or hoar frost, and becomes earthy. So when mixed in masonry, it has no binding power on the rubble, which consequently settles and down comes the load which the walls can no longer support."

"Fresh pitsand, however, in spite of all its excellence in concrete structures, is not equally useful in stucco, the richness of which, when the lime and straw are mixed with such sand, will cause it to crack as it dries on account of the great strength of the mixture. But river sand, though useless in "signinum" on account of its thinness, becomes perfectly solid in stucco when thoroughly worked by means of polishing instruments."

"With regard to lime we must be careful that it is burned from a stone which, whether soft or hard, is in any case white. Lime made of close-grained stone of the harder sort will be good in structural parts; lime of porous stone, in stucco. After slaking it, mix your mortar, if using pitsand, in the proportions of three parts of sand to one of lime; if using river or sea-sand, mix two parts of sand with one of lime. These will be the right proportions for the composition of the mixture. Further, in using river or sea-sand, the addition of a third part composed of burnt brick, pounded up and sifted, will make your mortar of a better composition to use."

"The reason why lime makes a solid structure on being combined with water and sand seems to be this: that rocks, like all other bodies, are composed of the four elements. Those which contain a larger proportion of air, are soft; of water, are tough from the moisture; of earth, hard; and of fire, more brittle. Therefore, if limestone, without being burned, is merely pounded up small and then mixed with sand and so put into the work, the mass does not solidify nor can it hold together. But if the stone is first thrown into the kiln, it loses its former property of solidity by exposure to the great heat of the fire, and so with its strength burnt out and exhausted it is left with its pores open and empty. Hence, the moisture and air in the body of the stone being burned out and set free, and only a residuum of heat being left lying in it, if the stone is then immersed in water, the moisture, before the water can feel the influence of the fire, makes its way into the open pores; then the stone begins to get hot, and finally, after it cools off, the heat is rejected from the body of the lime."

"Consequently, limestone when taken out of the kiln... though its bulk remains the same as before, it is found to have lost about a third of its weight owing to the boiling out of the water. Therefore, its pores being thus opened and its texture rendered loose, it readily mixes with sand, and hence the two materials cohere as they dry, unite with the rubble, and make a solid structure."

"Pozzolana.—There is... a kind of powder which from natural causes produces astonishing results. It is found in the neighborhood of Baiae and in the country belonging to the towns round about Mt. Vesuvius. This substance when mixed with lime and rubble not only lends strength to buildings of other kinds, but even when piers of it are constructed in the sea, they set hard under water."

"What is called "sponge stone" or "Pompeian pumice" appears to have been reduced by burning from another kind of stone to the condition of the kind which we see. The kind of sponge-stone taken from this region is not produced everywhere else, but only about Aetna and among the hills of Mysia which the Greeks call the "Burnt District," and in other places of the same peculiar nature. ...it seems to be certain that moisture has been extracted from the tufa and earth, by the force of fire, just as it is from limestone in kilns."

"When different and unlike things have been subjected to the action of fire and thus reduced to the same condition, if after this, while in a warm, dry state, they are suddenly saturated with water, there is an effervescence of the heat latent in the bodies of them all, and this makes them firmly unite and quickly assume the property of one solid mass."

"There will still be the question why Tuscany, although it abounds in hot springs, does not furnish a powder out of which, on the same principle, a wall can be made which will set fast under water. ...The properties of the soil are as different and unlike as are the various countries. ...Hence it is not in all the places where boiling springs of hot water abound that there is the same combination of favourable circumstances... For things are produced in accordance with the will of nature; not to suit man's pleasure, but as it were by a chance distribution."

"While in Campania the burning of the earth makes ashes, in Tuscany the combustion of the stone makes carbuncular sand. Both are excellent in walls but one is better to use for buildings on land, the other for piers under salt water."

"Next comes the consideration of stone quarries from which dimension stone and supplies of rubble to be used in building are taken and brought together."

"The stone in quarries is found to be of different and unlike qualities. In some it is soft... in others it is medium... in still others it is hard as in lava quarries. There are also numerous other kinds: for instance, in Campania, red and black tufas; in Umbria, Picenum, and Venetia, white tufa which can be cut with a toothed saw like wood."

"All these soft kinds [of stone] have the advantage that they can be easily worked as soon as they have been taken from the quarries. Under cover, they play their part well; but in open and exposed situations the frost and rime make them crumble, and they go to pieces. On the seacoast, too, the salt eats away and dissolves them, nor can they stand great heat either."

"Travertine and all stone of that class can stand injury whether from a heavy load laid upon it or from the weather; exposure to fire, however, it cannot bear, but splits and cracks to pieces at once. This is because in its natural composition there is but little moisture and not much of the earthy, but a great deal of air and of fire. Therefore, it is not only without the earthy and watery elements, but when fire, expelling the air from it by the operation and force of heat, penetrates into its inmost parts and occupies the empty spaces of the fissures there comes a great glow and the stone is made to burn as fiercely as do the particles of fire itself."

"There are also several quarries called Anician in the territory of Tarquinii, the stone being of the color of peperino. ...Neither the season of frost nor exposure to fire can harm it, but it remains solid and lasts to a great age, because there is only a little air and fire in its natural composition, a moderate amount of moisture, and a great deal of the earthy. Hence its structure is of close texture and solid, and so it cannot be injured by the weather or by the force of fire. Monuments in the neighborhood of the town of Ferento which are made of stone from these quarries... gracefully carved. Old as these are, they look as fresh as if they were only just finished. Bronze workers, also, make molds for the casting of bronze out of stone from these quarries and find it very useful in bronze-founding."

"Since, on account of the proximity of the stone-quarries... nearest to the city, necessity drives us to make use of their products, we must proceed as follows if we wish our work to be finished without flaws. Let the stone be taken from the quarry two years before building is to begin, and not in winter, but in summer. Then let it lie exposed in an open place. Such stone as been damaged by the two years of exposure should be used in the foundations. The rest, which remains unhurt, has passed the test of nature and will endure in those parts of the building which are above ground. This precaution should be observed, not only with dimension stone, but also with the rubble which is to be used in walls."

"There are two styles of walls "opus reticulatum," now used by everybody and the ancient style called "opus incertum." Of these, the reticulatum looks better, but its construction makes it likely to crack... On the other hand, in the opus incertum, the rubble lying in courses and imbricated, makes a wall which though not beautiful, is stronger."

"Both kinds should be constructed of the smallest stones, so that the walls, being thoroughly puddled with the mortar, which is made of lime and sand, may hold together longer. If the stones used are soft and porous, they are apt to suck the moisture out of the mortar and so to dry it up. But when there is abundance of lime and sand, the wall, containing more moisture, will not soon lose its strength, for they will hold it together. But if the moisture is sucked out of the mortar by the porous rubble, and the lime and sand separate and disunite, the rubble can no longer adhere to them and the wall will in time become a ruin."

"Leave a cavity behind the [wall] facings, and on the inside build walls two feet thick, made of red dimension stone or burnt brick or lava in courses, and then bind them to the fronts by means of iron clamps and lead. ...the beds and builds, all settling equally and bonded at the joints, will not let the work bulge out, nor allow the fall of the face walls which have been tightly fastened together."

"6 A wall is called isodomum when all the courses are of equal height; pseudisodomum, when the rows of courses do not match but run unequally. Both kinds are strong: first, because the rubble itself is of close texture and solid, unable to suck the moisture out of the mortar, but keeping it in its moist condition for a very long period; secondly, because the beds of the stones, being laid smooth and level to begin with, keep the mortar from falling, and, as they are bonded throughout the entire thickness of the wall, they hold together for a very long period."

"Our workmen, in their hurry to finish, devote themselves only to the facings of the walls, setting them upright but filling the space between with a lot of broken stones and mortar thrown in anyhow. This makes three different sections in the same structure; two consisting of facing and one of filling between them. The Greeks, however, do not build so; but laying their stones level and building every other stone lengthwise into the thickness, they do not fill the space between, but construct the thickness of their walls in one solid and unbroken mass from the facings to the interior. Further, at intervals they lay single stones which run through the entire thickness of the wall. These stones... by their bonding powers... add very greatly to the solidity of the walls."

"One who in accordance with these notes will take pains in selecting his method of construction, may count upon having something that will last."

"In Sparta, paintings have been taken out of certain walls by cutting through the bricks, then have been placed in wooden frames, and so brought to the Comitium to adorn the aedileship of [C. Visellius] Varro and [C. Licinius] Murena."

"At Halicarnassus, the house of that most potent king Mausolus, though decorated throughout with Proconnesian marble, has walls built of brick which are to this day of extraordinary strength, and are covered with stucco so highly polished that they seem to be as glistening as glass. That king did not use brick from poverty; for he was choke-full of revenues, being ruler of all Caria."

"Since such very powerful kings have not disdained walls built of brick, although... they might often have had them not only of masonry or dimension stone but even of marble, I think that one ought not to reject buildings made of brick-work, provided that they are properly "topped.""

"The laws of the state forbid that walls abutting on public property should be more than a foot and a half thick. ...Now brick walls, unless two or three bricks thick, cannot support more than one story; certainly not if they are only a foot and a half in thickness."

"With the present importance of the city [of Rome] and the unlimited numbers of its population, it is necessary to increase the number of dwelling-places indefinitely. Consequently, as the ground floors could not admit of so great a number living in the city, the nature of the case has made it necessary to find relief by making the buildings high. In these tall piles reared with piers of stone, walls of burnt brick, and partitions of rubble work, and provided with floor after floor, the upper stories can be partitioned off into rooms to very great advantage. The accommodations within the city walls being thus multiplied as a result of the many floors high in the air, the Roman people easily find excellent places in which to live."

"On the top of the wall lay a structure of burnt brick, about a foot and a half in height, under the tiles and projecting like a coping. ...when the tiles on the roof are broken or thrown down by the wind so that rain-water can leak through, this burnt brick coating will prevent the crude brick from being damaged, and the cornice-like projection will throw off the drops beyond the vertical face, and thus the walls, though of crude brick structure, will be preserved intact."

"With regard to burnt brick... If not made of good clay or if not baked sufficiently, it shows itself defective... when exposed to frosts and rime. Brick that will not stand exposure on roofs can never be strong enough to carry its load in a wall. Hence the strongest burnt brick walls are those which are constructed out of old roofing tiles."

"As for "wattle and daub" I could wish that it had never been invented. The more it saves in time and gains in space, the greater and the more general is the disaster that it may cause; for it is made to catch fire, like torches. It seems better, therefore, to spend on walls of burnt brick, and be at expense, than to save with "wattle and daub," and be in danger. And, in the stucco covering, too, it makes cracks from the inside by the arrangement of its studs and girts. For these swell with moisture as they are daubed, and then contract as they dry, and by their shrinking cause the solid stucco to split. But since some are obliged to use it either to save time or money, or for partitions on an unsupported span, the proper method of construction is as follows. Give it a high foundation so that it may nowhere come in contact with the broken stone-work composing the floor..."

"In Spring all trees become pregnant, and they are all employing their natural vigor in the production of leaves and of the fruits that return every year. The requirements of that season render them empty and swollen, and so they are weak and feeble because of their looseness of texture. This is also the case with women who have conceived. Their bodies are not considered perfectly healthy until the child is born."

"With the ripening of the fruits in Autumn the leaves begin to wither and the trees, taking up their sap from the earth through the roots, recover themselves and are restored to their former solid texture. But the strong air of winter compresses and solidifies them."

"In felling a tree we should cut into the trunk of it to the very heart, and then leave it standing so that the sap may drain out drop by drop throughout the whole of it. ...Then and not till then, the tree being drained dry and the sap no longer dripping, let it be felled and it will be in the highest state of usefulness."

"When the juices of trees have no means of escape, they clot and rot in them, making the trees hollow and good for nothing."

"The oak... has not the efficacy of the fir, nor the cypress that of the elm."

"Fir: it contains a great deal of air and fire with very little moisture and the earthy, so that, as its natural properties are of the lighter class, it is not heavy. Hence, its consistence being naturally stiff, it does not easily bend under the load, and keeps its straightness when used in the framework. But it contains so much heat that it generates and encourages decay, which spoils it; and it also kindles fire quickly because of the air in its body, which is so open that it takes in fire and so gives out a great flame."

"The part which is nearest to the earth... is without knots and is "clear." But the upper part, on account of the great heat in it throws up branches into the air through the knots and this... is called "knotwood" because of its hardness and knottiness. The lowest part, after the tree is cut down and the sapwood of the same thrown away, is split up into four pieces and prepared for joiner's work, and so is called clearstock."

"Oak... lasts for an unlimited period when buried in underground structures. ...when exposed to moisture... it cannot take in liquid on account of its compactness, but, withdrawing from the moisture, it resists it and warps, thus making cracks."

"The winter oak... is very useful in buildings but when in a moist place it takes in water to its centre... and so it rots. The Turkey oak and the beech both... take in moisture to their centre and soon decay. White and black poplar, as well as willow, linden, and the agnus castus... are of great service from their stiffness. ...they are a convenient material to use in carving."

"In swampy places, alder piles driven close together beneath the foundations of buildings take in the water which their own consistence lacks and remain imperishable forever, supporting structures of enormous weight and keeping them from decay. Thus a material which cannot last even a little while above ground, endures for a long time when covered with moisture."

"The elm and the ash... when put in shape for use in buildings... are tough and having no stiffness... soon bend. But when they become dry with age, or are allowed to lose their sap... they get harder, and from their toughness supply a strong material for dowels to be used in joints and other articulations."

"The hornbeam... is not a wood that breaks easily and is very convenient to handle. Hence the Greeks call it "zygia," because they make of it yokes for their draught animals... Cypress and pine are also just as admirable; for although they... are apt to warp when used in buildings... they can be kept to a great age without rotting because the liquid contained within their substances has a bitter taste which by its pungency prevents the entrance of decay or of those little creatures which are destructive. Hence buildings made of these kinds of wood last for an unending period of time."

"The cedar and the juniper tree have the same uses and good qualities... from the cedar is produced an oil called cedar oil. Books as well as other things smeared with this are not hurt by worms or decay. ...the grain of the wood is straight. The statue of Diana in the temple at Ephesus is made of it, and so are the coffered ceilings both there and in all other famous fanes, because that wood is everlasting."

"The larch... is not only preserved from decay and the worm by the great bitterness of its sap, but also it cannot be kindled with fire nor ignite of itself, unless like stone in a limekiln it is burned with other wood. ...This is because there is a very small proportion of the elements of fire and air in its composition, which is a dense and solid mass of moisture and the earthy, so that it has no open pores through which fire can find its way... Further, its weight will not let it float in water."

"The leaves of these [larch] trees are like those of the pine; timber from them comes in long lengths, is as easily wrought in joiner's work as is the clearwood of fir, and contains a liquid resin, of the color of Attic honey, which is good for consumptives."

"Trees which grow in places facing the course of the sun are not of porous fiber but are solid, being drained by the dryness... The trees in sunny neighborhoods, therefore, being solidified by the compact texture of their fiber, and not being porous from moisture, are very useful, so far as durability goes, when they are hewn into timber. The lowland firs, being conveyed from sunny places, are better than those highland firs, which are brought here from shady places."

"Delphicus Apollo Socratem omnium sapientissimum Pythiae responsis est professus. Is autem memoratur prudenter doctissimeque dixisse, oportuisse hominum pectora fenestrata et aperta esse, uti non occultos haberent sensus sed patentes ad considerandum. Utinam vero rerum natura sententiam eius secuta explicata et apparentia ea constituisset!"

"Of course, we need not be surprised if artistic excellence goes unrecognized on account of being unknown; but there should be the greatest indignation when, as often, good judges are flattered by the charm of social entertainments into an approbation which is a mere a pretence."

"The design of a temple depends on symmetry, the principles of which must be most carefully observed by the architect."

"Then again, in the human body the central point is naturally the navel. For if a man be placed flat on his back, with his hands and feet extended, and a pair of compasses centered at his navel, the fingers and toes of his two hands and feet will touch the circumference of a circle described therefrom."

"These rules for symmetry were established by Hermogenes, who was also the first to devise the principal of the pseudodipteral octastyle."

"Then, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined by the unobstructed air around them, and seem to the beholder more slender than they are."

"For the eye is always in search of beauty, and if we do not gratify its desire for pleasure by a proportionate enlargement in these measures, and thus make compensation for ocular deception, a clumsy and awkward appearance will be presented to the beholder."

"The steps in front must be arranged so that there shall always be an odd number of them; for thus the right foot, with which one mounts the first step, will also be the first to reach the level of the temple itself."

"Hence, as the line of sight to the upper part is the longer, it makes that part look as if it were leaning back. But when the members are inclined to the front, as described above, they will seem the beholder to be plumb and perpendicular."

"I have therefore thought that it would be a worthy and very useful thing to reduce the whole of this great art to a complete and orderly form of presentation, and then in different books to lay down and explain the required characteristics of different departments."

"The third order, called Corinthian, is an imitation of the slenderness of a maiden; for the outlines and limbs of maidens, being more slender on account of their tender years, admit of prettier effects in the way of adornment."

"For we must not build temples according to the same rules to all gods alike, since the performance of the sacred rites varies with the various gods."

"Altars should face the east, and should always be placed on a lower level than are the statues in the temples, so that those who are praying and sacrificing may look upwards towards the divinity."

"Furthermore, since I have observed that our citizens are distracted with public affairs and private business, I have thought it best to write briefly, so that my readers, whose intervals of leisure are small, may be able to comprehend in a short time."

"Basilicas should be constructed on a site adjoining the forum and in the warmest possible quarter, so that in winter business men may gather in them without being troubled by the weather."

"But basilicas of the greatest dignity and beauty may also be constructed in the style of that one which I erected, and the building of which I superintended at Fano."

"Voice is a flowing breath of air, perceptible to the hearing by contact. It moves in an endless number of circular rounds, like the innumerably increasing circular waves which appear when a stone is thrown into smooth water, and which keep on spreading indefinitely from the centre unless interrupted by narrow limits, or by some obstruction which prevents such waves from reaching their end in due formation. When they are interrupted by obstructions, the first waves, flowing back, break up the formation of those which follow."

"In the same manner the voice executes its movements in concentric circles; but while in the case of water the circles move horizontally on a plane surface, the voice not only proceeds horizontally, but also ascends vertically by regular stages. Therefore, as in the case of the waves formed in the water, so it is in the case of the voice: the first wave, when there is no obstruction to interrupt it, does not break up the second or the following waves, but they all reach the ears of the lowest and highest spectators without an echo."

"Hence the ancient architects, following in the footsteps of nature, perfected the ascending rows of seats in theatres from their investigations of the ascending voice, and by means of the canonical theory of the mathematicians and that of the musicians, endeavoured to make every voice uttered on the stage come with greater clearness and sweetness to the ears of the audience. For just as musical instruments are brought to perfection of clearness in the sound of their strings by means of bronze plates or horn, so the ancients devised methods of increasing the power of the voice in theatres through the application of harmonics."

"In accordance with the foregoing investigations on mathematical principles, let bronze vessels be made, proportionate to the size of the theatre, and let them be so fashioned that, when touched, they may produce with one another the notes of the fourth, the fifth, and so on up the double octave."

"On this principle of arrangement, the voice, uttered from the stage as from a centre, and spreading and striking against the cavities of the different vessels, as it comes in contact with them, will be increased in clearness of sound, and will wake an harmonious note in unison with itself."

"It was left by Aristoxenus, who with great ability and labour classified and arranged in it the different modes. In accordance with it, and by giving heed to these theories, one can easily bring a theatre to perfection, from the point of view of the nature of the voice, so as to give pleasure to the audience."

"These are, of course, some things which, for utility's sake, must be made of the same size in a small theatre, and a large one: such as the steps, curved cross-aisles, their parapets, the passages, stairways, stages, tribunals, and any other things which occur that make it necessary to give up symmetry so as not to interfere with utility."

"When his companions wished to return to their country, and asked him what message he wished them to carry home, he bade them say this: that children ought to be provided with property and resources of a kind that could swim with them even out of a shipwreck."

"All the gifts which fortune bestows she can easily take away; but education, when combined with intelligence, never fails, but abides steadily on to the very end of life."

"If our designs for private houses are to be correct, we must at the outset take note of the countries and climates in which they are built."

"Hence, men that are born in the north are rendered over-timid and weak by fever, but their wealth of blood enables them to stand up against the sword without timidity."

"There is nothing to which an architect should devote more thought than to the exact proportions of his building with reference to a certain part selected as the standard."

"Bedrooms and libraries ought to have an eastern exposure, because their purposes require the morning light, and also because books in such libraries will not decay."

"Even peasants wholly without knowledge of the quarters of the sky believe that oxen ought to face only in the direction of the sunrise."

"When it appears that a work has been carried out sumptuously, the owner will be the person to be praised for the great outlay which ha has authorized; when delicately, the master workmen will be approved for his execution; but when proportions and symmetry lend it an imposing effect, then the glory of it will belong to the architect."

"In fact, all kinds of men, and not merely architects, can recognize a good piece of work..."

"It was a wise and useful provision of the ancients to transmit their thoughts to posterity by recording them in treatises, so that they should not be lost, but, being developed in succeeding generations through publications in books, should gradually attain in later times, to the highest refinement of learning."

"nothing suffers annihilation, but at dissolution there is a change, and things fall back to the essential element in which they were before."

"In order that the mortar in the joints may not suffer from frosts, drench it with oil-dregs every year before winter begins. Thus treated, it will not let the hoarfrost enter it."

"The fact is that pictures which are unlike reality ought not be approved, and even if they are technically fine, this is no reason why they should offhand be judged to be correct, if their subject is lacking in the principles of reality carried out with no violations."

"the gravity of a substance depends not on the amount of its weight, but on its nature."

"Burn shavings and splinters of pitch pine, and when they turn to charcoal, put them out, and pound them into mortar with size. This will make a pretty black for fresco painting."

"They make a fine purple colour by treating bilberry in the same way and mixing it with milk."

"Every hot spring has healing properties because it has been boiled with foreign substances, and thus acquires a new useful quality."

"Copious springs are found where there are mines of gold, silver, iron, copper, lead, and the like, but they are very harmful."

"At Jaffa in Syria and among the Nomads in Arabia, are lakes of enormous size that yield very large masses of asphalt, which are carried off by the inhabitants thereabouts."

"Some springs are acid, as at Lyncestus and in Italy in the Velian country, at Teano in Campania, and in many other places. These when used in drinks have the power of breaking up stones in the bladder, which form in the human body."

"There are also in some places springs which have the peculiarity of giving fine singing voices to the natives, as at Tarsus in Magnesia and in other countries of that kind."

"water from clay pipes is much more wholesome than that which is conducted through lead pipes, because lead is found to be harmful for the reason that white lead is derived from it, and this is said to be hurtful to the human system."

"Hence, water ought by no means to be conducted in lead pipes, if we want to have it wholesome. That the taste is better when it comes from clay pipes may be proved by everyday life, for though our tables are loaded with silver vessels, yet everybody uses earthenware for the sake of purity of taste."

"To guard against this, we must proceed as follows. Let down a lighted lamp, and if it keeps burning, a man may make the descent without danger."

"Noting all these things with the great delight which learning gives, we cannot but be stirred by these discoveries when we reflect upon the influence of them one by one."

"In a word, the opinions of learned authors, though their bodily forms are absent, gain strength as time time goes on, and, when taking part in councils and discussions, have greater weight than those of any living men."

"The word "universe" means the general assemblage of all nature, and it also means the heaven that is made up of the constellations and the courses of the stars."

"The moon makes her circuit of the heaven in twenty-eight days plus about an hour, and with her return to the sign from which she set forth, completes a lunar month."

"If then, at this great distance, our human vision can discern that sight, why, pray, are we to think that the divine splendor of the stars can be cast into darkness?"

"It is no secret that the moon has no light of her own, but is, as it were, a mirror, receiving brightness from the influence of the sun."

"The difference between "machines" and "engines" is obviously this, that machines need more workmen and greater power to make them take effect, as for instance ballistae and the beams of presses. Engines, on the other hand, accomplish their purpose at the intelligent touch of a single workman,..."

"All machinery is derived from nature, and is founded on the teaching and instruction of the revolution of the firmament."

"Next I must tell about the machine of Ctesibius, which raises water to a height."

"For siege works against bold and venturesome men should be constructed on one plan, on another against cautious men, and on still another against the cowardly."

"For not all things are practicable on identical principles,"

"Thus by such victory, not by machines but in oppositions to the principle to the principles of machines, has the freedom of states been preserved by the cunning of architects."

"Planning is undoubtedly necessary to ensure progress. If Nations and Peoples are finding it difficult to fulfil their own Plans, then who is going to be so presumptuous as to plan for the whole world? In these times of Cold Wars and Bamboo and Iron Curtains do we suppose one Nation will sit idly by and let another take the initiative in this respect? Even suppose the impossible does occur do you think the other Nations will accept the Plan of another with whom they are outwardly in peaceful contact?"

"This subject of Planning in the economic sphere is discussed in a separate paper. We will here deal only with the spiritual angle."

"Man is a free agent, not in many things but in all things, subject, of course, to the requirements of the Natural and the Moral Law. In fact, Man is so free that he can even defy and disobey his Creator. Man's freedom is however conditioned by rules of safety, morality etc., which counsel him that he may not do certain things. This is not however, a negation of Freedom."

"People state that the World is marching towards a prescribed goal laid down by the Creator, which means that no matter how brilliant the achievements of man may be, he can exert no influence whatever on the final result. No doubt man is a puny and insignificant creature in contrast with God, but If I were just to play a passive part like the animals, there would be no justification in endowing him with a free will and creating him to the image and likeness of His Creator. He could have been a Superior Animal only."

"Look up and below and all round and see the wonderful creations of God, not only our earth but the whole host of celestial worlds, planets, constellations etc. – many still unknown to us. See with what minute precision and order they move and are regulated. Only God could have created them. Ev all the accumulated genius of Mankind from the time of Creation through eons and eons of time and even to the end of existence, were all pooled together, yet it would not be able to evolve even a fraction of this order. God only could do so, and without him it would be utter chaos."

"So again, if the goal is already prescribed, none of the Plans proposed by man could be of any avail. Then why Plan? This is a cul-de-sac, but fortunately there is a way out. Man has to Plan but his Planning must be in conformity with God's Will."

"Some one has said, 'Through struggle and suffering man can pass from the freedom to choose j or evil to the higher freedom that abides in the steadfastly chosen good." And again the "Gita" in ( II Ver. 27 states that our existence is brief and death is certain and that our human dignity requin to accept pain and suffering for the sake of the right."

"Suffering is an excellent teacher, and Aeschylus says, "We learn by sufferings. "We are easily] up; sufferings keep us humble. We easily turn to worldly things. Sufferings make us turn to ( love ourselves; sufferings teach us to love God.""

"On grounds of sheer character formation, the patient endurance of pain brings out in a man ( that enhance and ennoble his character. There is no finer man than a man who 'can take ft'J self-sacrificing care of invalids, of the sick, of the aged, is one of the most refining factors in the\ realm of human experience. Thoroughbreds don't cry and pain can be a blessed thing"

"Remember that sufferings like medals have also a reverse side and ponder over the words of blind Helen Keller" Although the world is full of sufferings, it is full of the overcoming of it.""

"The state of affairs in other Countries, which claim to be more highly advanced and progressive, is much worse. There it is stated that no man or woman approaches Marriage as a virgin. This is the direct result of provocative publicity. The case of the male is perhaps worse, for he boasts he cannot even recollect the number or wild oats he has sown and which is considered as a Passport to manhood (sic). Others again have disgraced their humanity in disgusting unnatural offences, which they are now trying to make their Governments legalise, and finally others again are subject to the Oedipus complex."

"This naturally leads us to the subject to Continence. Our soi-disant manly man with a false sneer of bravado and utter lack of stability considers that Continence is not possible, and like the ostrich tries to hide from the truth. For not only is Continence possible but it is practiced with brilliant success, voluntarily, by hundreds and hundreds of men and women in all walks of life and by all castes and creeds. (Please note the stress on the word voluntarily.) But its attainment needs courage and determination of the highest degree and which is naturally out of the reach of our flabby indolent moderns, who succumb to the slightest temptation and want to drag everyone down to their own low moral levels."

"Let us delve a little deeper into the matter of Income Tax. The long-suffering Public are blamed and where discovered heavily penalised for submitting wrong returns. No doubt there are many black sheep, as in all other walks of life, who deliberately do so, but, however, it is true that most of those who adopt this unsavory practice have been forced to do so. Let us consider what happens."

"The party first makes a correct return to the best of his ability but is considered to be a simpleton and fool. His word or explanations are not accepted or are looked upon with suspicion by the Assessing Authority, who may be his inferior perhaps in status. Arbitrary and unwarranted deductions are made and the poor party is unfairly over-assessed without hope of getting any proper relief. If he appeals the Superior Officer supports his subordinate and it may take years, expense and the ruling of a High Court to see that Justice is done. So what can be the result in such a case? At the next encounter you may be sure the party will be ready to match his skill against his instigator and to throw as many red herrings as he can on the trail. It will now require all the subtlety, knowledge and acumen of the authorities to arrive at the proper conclusion, and failure is generally the result. Lakhs of rupees of Income Tax dues remain outstanding and years of litigation follow and eventually the Tax is time-barred and non recoverable."

"Mr. Nixon, the [late] Vice-President of the U.S.A., has said that the time to lose one's temper is when it is deliberate, whilst another wiseacre has stated, "Speak when you are angry and you'll make the best speech you'll ever regret.""

"Taking an example from Nature – One of the strangest facts about bees is that as soon as they sting anyone, they are doomed to die after a little while. The sting is attached to their intestines so that when they leave it in any other body, life become impossible for the bee that has stung. This is precisely what happens when one is angry."

"Many advocate aids to check Anger; the commonest being to count ten before you start; but if not constant, you tend to turn into the man who used to count ten before he lost his temper, but later counted in two's to get there quicker."

"Of Anger the Dhamnapada says, "He who holds back rising anger like a rolling chariot, him I call, a real driver, other people are but holding the reins.""

"A first reading of the "Bhagwat Gita" reveals that it preaches a gospel of complete detachment. A more intensified reading confirms this opinion but reveals some really beautiful verses which require careful understanding and implementation."

"The substance of the teaching of the "Gita" is contained in Chapter XI Ver. 55, which translated reads: " He who does work for me, he who looks upon Me as his goal, he who worships me, free from attachment, he who is free from enmity to all creatures, he goes to me.""

"Human perfection is a sort of marriage between high thought and just action. This must form man's aim according to the "Gita"."

"A Sanskrit Scholar, J.W. Hauer, speaking of the central message of the "Gita" says, "We are not called to solve the meaning of life, but to find out the deed demanded by us and to work, and so by action to master the riddle of life." Whilst Sanskara says that the essential purpose of the "Gita" is to teach us a way out of bondage and not merely enjoin action."

"The safest refuge when dealing with urgent, ticklish problems is sought in shirking responsibility, in gaining time by the formation of Committees, with the requisite Sub-Committees to tackle the problem. It is the well-known practice of Promise, Pause, Prepare, Postpone and end by letting things alone. But this cannot last for ever. Now the secret of these Committees is that they consist of a group of men, who individually can do nothing, but collectively can meet and decide that nothing can be done, whilst they know that the best Sub-Committees consist of three persons, two of whom are always absent!"

"Further it is mentioned that if you want to kill an idea in the world today, get a Committee working on it. Adds J.B. Hughes, "If Moses had been a Committee, the Israelites would still be in Egypt.""

"The Politician uses the language of diplomacy of which he is a master, and it consists in telling some of the truth without necessarily exhausting it. This is a most subtle and potent weapon in his well-stocked armory. For when a woman says, "no", she means "perhaps", when she says, "perhaps", she means "yes", if she says, "yes", she is no lady; but it is different with a Politician; when he says, "yes", he means "perhaps", if he says, "perhaps," he means "no", but if he says, "no", he is no politician."

"The polls are the place where Politicians claim the lime-light. They fulminate with garnished oratory, display inherent and affected charm and poise and ingenuity in tackling hecklers and evading responses to tricky questions and acquire the knack of telling an untruth with utmost conviction."

"Polls are after all places where you stand in line for a chance to decide who will spend your money, and where the Candidate stands for what people will fall for."

"Honest and peace-loving people shun the Courts and are prepared to suffer loss rather than fall into a Lawyer's clutches. However, the vagaries and inconsistencies of human nature are such that people are unwillingly dragged in and the experiences they undergo leave an indelible and nauseating impression. One of these is the flagrant and plausible manner in which clients are fleeced, and snowed under a series of documents and forms which not only puzzle them, but which are always accompanied with demands for payment. There is, of course, the Lawyer's fee, but this is accompanied with the fees of his clerk (real or imaginary), then typing charges, copying charges and numerous other innumerable heads and sub-heads. In this context it is refreshing to recall that eminent legal luminary, the late Pt. Motilal Nehru was paid Rs. 5/- as his first fee and the remuneration of Dr. John Mathai was a bunch of bananas. These latter have increased immeasurably in value and are good foreign exchange getters and it is not so easy now to slip on a banana peel!"

"In former days this maxim was displayed in Business Offices, "Call upon a Businessman, at business hours, on business only. Go about your business and thus enable him to finish his own business. This is purely a business matter." There are two reasons why some people don't mind their own business; one is that they haven't any mind and the other that they haven't any business. However, now the Businessman is plagued at all hours by a spate of visitors with no business in view, who just drop in for free information or hospitality and more often than not for contributions to all sorts of charities, often of doubtful flavour or unauthorised."

"Visson has said, "Today's profits are yesterday's good will ripened," and though friendship is no basis for Business yet Business is an excellent basis for lasting friendship. To cement this friendship the Businessman recalls the fact that the memory of quality remains long after the price is forgotten, and keeps Buskin's dictum in mind that there is nothing in this world that cannot be made a little worse and sold a little cheaper. While it is equally true that men will make a beaten path to your door to acquire a better quality article even if it be a mouse trap. Nevertheless, a man is known by the Company he floats, or the Secretaries he employs, though the latter fluctuate more than the market, especially if of the gentler sex!"

"There are some silly canards that die hard and some that should have been buried long ago such as 'Those that can, do; those as cannot, teach," or the definition of a Professor as a man whose job is to tell students how to solve the problem of life, which he himself has tried to avoid by becoming a Professor; or the more hurtful one that a Professor is a text book wired for sound."

"This vocation is sometimes termed a harried one and it is said that the abuse of School-masters was scribbled on the Pyramids long before the Monument was complete and that the general hatred and contempt for the pedagogue dates back to the very beginning of recorded things. These and other similar foolish accusations are the additional burden this class of people have to bear. Consider the gibe of that arch-cynic G.B.S., "When a man teaches something he does not know to somebody else, who has no aptitude for it and gives him a certificate of proficiency, the latter has completed the education of a gentleman.""

"It has also been said that your Education has been a failure no matter how much it has done for you, if it has failed to open your heart. Dr. Zakir Hussain, when Vice-Chancellor of the Aligarh University, said, that the aim of Education was that students should become responsible citizens and not merely bundles of styles and sophistication like articles in a furniture shop – the product now being churned out lacks even that saving grace..... The old system may have produced 'snobs' what is being spewed out now are 'slobs'. The young student in Indian Schools is being smothered under a dead weight of books and notes dealing with a host of subjects imaginable and unimaginable. Busy cramming from morning till night and repeating parrot-like that he does not understand, he is fast becoming a literate moron. Initiative, leadership and education in the real sense of the term are encouraged only in a few public Schools."

"This reminds one of the story of two eminent surgeons who were leaving the operation room, and one turned to the other and said, 'That was a close one, one inch either way and I would have been out of my speciality.""

"This brings to mind the story of the Doctor speaking tactfully, "I do not like to bring it up but the cheque you gave me has come back." Replied the patient, "I do not like to mention it either, but so did the complaint.""

"There are types and types of Specialists, and one Doctor when asked why he specialised in skin diseases, naively answered, 'There are three perfectly good reasons – my patients never get me out of bed at night, they never die and they never get well.""

"The greatest sacrifices are called for in this Profession and therefore it not only merits but demands our respect and admiration."

"To get an idea of the sacrifices entailed, listen to the words of the Father of the Nation, Mahatma Gandhi, "If aiding the lepers is so dear to the Missionaries, particularly the Catholic Missionaries, it is because there is no other service, which requires a greater spirit of sacrifice. Working in a leper asylum demands the highest ideals and the most perfect abnegation. The world of politics and journalism can point to few heroes who compare with Father Damien of Molokai. The Catholic Church on the other hand, counts by the thousand, those who after the example of Father Damien have vowed themselves to the service of the lepers. It is worth inquiring into such heroism!""

"It is an illusion," says Ernest Raymond," that Bishops should be chosen for their scholarship, their administrative ability, their force of will, their social gifts or other more worldly abilities, instead of the one thing needful – their sanctiity."

"Now turning to Writers in general. The urge to write is analysed as 50% Ambition, 45% Vanity and 5% something to say. This is rather drastic and later revised by a famous Author as 80% earning a living, 10% Vanity and 10% something to say. Though both may not be acceptable to all, yet using them as norms, one can classify to some extent the written effusions one reads. William Faulkner says he writes what people will believe and for that they will pay, as even a Writer has to make money."

"One writer quite cutely remarks that his best work of fiction was his Income Tax Return."

"However, there are all kinds of Writers. Some who know only one field themselves. Next those who know two or three fields in depth, and nothing more, and thirdly the majority who know a little about many things. Lin Yutang says, "It seems to me that simplicity is almost the most difficult thing to achieve in scholarship or writing," presumably because simplicity pre-supposes digestion and also maturity."

"Again there is a trite saying that good Soldiers never think. Though this may not be true, yet it explains the cautionary advice that War is too serious a matter to be left to Soldiers and that a very good Soldier should not be in charge of the War Office. His place should be on the battle field where he is unsurpassable. Actually, "Young men don't make War, they fight them. Old men make Wars and survive them. They are immensely brave about other people's sons," says Nicholas Montsarrat. They are the ones that jest at scars, who never felt a wound."

"Old Soldiers never die, they only fade away, which has now been commuted to, they never die but only get slightly out of focus. However, the focus must be pretty sharp, for we find our retired Soldiers are in great demand and they secure ready employment in large organisations in the public and private sectors."

"For by the life of God, it doth even take my wits from me to think on it. Here is such controversy between the sailors and gentlemen, and such stomaching between the gentlemen and sailors, it doth make me mad to hear it. But, my masters, I must have it left. For I must have the gentleman to haul and draw with the mariner, and the mariner with the gentleman. What! let us show ourselves to be of a company and let us not give occasion to the enemy to rejoice at our decay and overthrow. I would know him that would refuse to set his hand to a rope, but I know there is not any such here . . ."

"There must be a beginning of any great matter, but the continuing unto the end until it be thoroughly finished yields the true glory."

"Coming up unto them, there has passed some cannon shot between some of our fleet and some of them, and so far as we perceive they are determined to sell their lives with blows. … This letter honorable good Lord, is sent in haste. The fleet of Spaniards is somewhat above a hundred sails, many great ships; but truly, I think not half of them men-of-war. Haste."

"There is plenty of time to win this game, and to thrash the Spaniards too."

"In the later sixties radical, popular and militant Protestantism spread like wildfire as Huguenots, Dutch sea-beggars and English pirates joined forces "against all Papists". Already then that fire jumped the Atlantic and soon Francis Drake, the personification of holy wrath, emerged as the hero of the nation. His triumphant encompassing of the globe promoted both confidence and ambition in the maritime forces of the country, for it seemed to lay open the western and eastern worlds to English enterprise."

"As for Drake, he too may now be considered an imperialist, but it was as the popular hero of the sea-war that he made a deep and lasting impression upon the nation, animating its aggressive spirit and pointing dramatically to an oceanic future."

"In Eighty Eight how she did fight Is known to all and some, When the Spaniard came, her courage to tame, But had better have stay'd at home: They came with Ships, fill'd full of Whips, To have lash'd her Princely Hide; But she had a Drake made them all cry Quake, And bang'd them back and side."

"Therefore good worthy Drake, serve thou thy sovereign Queen, And make the Spanish foe to quake, and English force be seen."

"Drake was so entirely a man of action that by his actions alone he must be judged. In them and in the testimony of independent witnesses he appears as a man of restless energy, cautious in preparation, prompt and sudden in execution; a man of masterful temper, careful of the lives and interests of his subordinates, but permitting no assumption of equality; impatient of advice, intolerant of opposition, self-possessed, and self-sufficing; as fearless of responsibility as of an enemy; with the force of character to make himself obeyed, with the kindliness of disposition to make himself loved."

"That, judged by the morality of the nineteenth century, Drake was a pirate or filibuster is unquestioned; but the Spaniards on whom he preyed were equally so. The most brilliant of his early exploits were performed without the shadow of a commission; but he and his friends had been, in the first instance, attacked at San Juan de Lua treacherously and without any legitimate provocation. In the eyes of Drake, in the eyes of all his countrymen, his attacks on the Spaniards were fair and honourable reprisals. According to modern international law the action of the Spaniards would no more be tolerated than would that of Drake; but as yet international law could scarcely be said to have an existence. That from the queen downwards no one in England considered Drake's attack on Nombre de Dios or his capture of the Cacafuego as blameworthy is very evident, and the slight hesitation as to officially acknowledging him on his return in 1580 rose out of a question not of moral scruples, but of political expediency. That once settled, he was accepted in England as the champion of liberty and religion, though in Spain and the Spanish settlements his name was rather considered as the synonym of the Old Dragon, the author of all evil."

"Drake he's in his hammock till the great Armadas come, (Capten, art tha sleepin' there below?), Slung atween the round shot, listenin' for the drum, An' dreamin' arl the time o' Plymouth Hoe. Call him on the deep sea, call him up the Sound, Call him when ye sail to meet the foe; Where the old trade's plyin' an' the old flag flyin', They shall find him, ware an' wakin', as they found him long ago."

"He was more skilful in all poyntes of navigation, then any that ever was before his time, in his time, or since his death, he was also of a perfect memory, great observation, eloquent by nature, skilful in artillery, expert and apt to let blood, and give physicke unto his people according to the climates, hee was low of stature, of strong limbs, broade breasted, round headed, browne hayre, full bearded, his eyes round, large and cleare, well favoured, fayre, and of a cheerefull countenance."

"Property has its duties as well as its rights."

"I observe you have thought proper to insert the last number of the Philosophical Magazine your opinion that my attempts at the safety tubes and apertures were borrowed from what I have heard of Sir Humphrey Davy's researches. The principles upon which a safety lamp might be constructed I stated to several persons long before Sir Humphrey Davy came into this part of the country. The plan of such a lamp was seen by several and the lamp itself was in the hands of the manufacturers during the time he was here."

"I am glad to learn that the Parliament Bill has been passed for the Darlington Railway. I am much obliged by the favourable sentiments you express towards me, and shall be happy if I can be of service in carrying into execution your plans."

"To tell you the truth although it would put £500 in my pockets to specify my own patent rails, I cannot do so after the experience I have had."

"The rage for railroads is so great that many will be laid in parts where they will not pay."

"I was threatened to be ducked in the pond if I proceeded, and of course we had a great deal of the survey to take by stealth at the time when the persons were at dinner; we would not get it by night, for we were watched day and night and guns were discharged over the ground belonging to Captain Bradshaw to prevent us. I can state further, I was twice turned off the ground myself by his men; and they said if I did not go instantly they would carry me off to Worsley."

"I got leave to go from Killingworth to lay down a railway at Hetton, and next to Darlington, and after that I went to Liverpool to plan the line to Manchester. I there pledged myself to attain a speed of ten miles an hour. I said I had no doubt the engine would go much faster, but we had better be moderate at the beginning. The directors said I was quite right, for if when they came to Parliament I talked of going at a greater rate than ten miles an hour, I would put a cross on the concern. It was not an easy task for me to keep engines down to ten miles an hour, but it must be done, and did my best. I had to place myself in the most unpleasant of all situations, the witness-box of a Parliamentary Committee. Someone inquired if I was a foreigner, and another hinted that I was mad. Many became alarmed at this "Watt run wild," and in order to prevent these mad steam engines running beyond an old horse trot, they got two eminent engineers to act as Lunacy Commissioners. These gentlemen proved it was practically and commercially inexpedient. I put up with insult and rebuff, and went on with my plans, determined not to be put down. Improvements were made every day, and to-day a train has brought me from London in the morning and enabled me to take my place in this room."

"This railway is the most absurd scheme that ever entered into the head of a man to conceive. Mr. Stephenson never had a plan — I do not believe he is capable of making one. He is either ignorant or something else which I will not mention. His is a mind perpetually fluctuating between opposite difficulties; he neither knows whether he is to make bridges over roads or rivers, or of one size or another; or to make embankments, or cuttings, or inclined planes, or in what way the thing is to be carried into effect. When you put a question to him upon a difficult point, he resorts to two or three hypothesis, and never comes to a decided conclusion. Is Mr. Stephenson to be the person upon whose faith this Committee is to pass this Bill involving property to the extent of £400,000/£500,000 when he is so ignorant of his profession as to propose to build a bridge not sufficient to carry off the flood water of the river or to permit any of the vessels to pass which of necessity must pass under it."

"It will hereafter be scarcely believed that an invention so eminently scientific, and which could never have been derived but from the sterling treasury of science, should have been claimed on behalf of an engine-wright of Killingworth, of the name of Stephenson — a person not even possessing a knowledge of the elements of chemistry."

"Left home in company with John Dixon to attend the internment of George Stephenson at Chesterfield. I fear he died an unbeliever. When I reflect on my first acquaintance with him and the resulting consequences my mind seems lost in doubt as to the beneficial results — that humanity has been benefited in the diminished use of horses and by the lessened cruelty to them, that much ease, safety, speed, and lessened expense in travelling is obtained, but as to the results and effects of all that railways had led my dear family into, being in any sense beneficial is uncertain."

"George Stephenson told me as a young man that railways will supersede almost all other methods of conveyance in this country — when mail-coaches will go by railway, and railroads will become the great highway for the king and all his subjects. I know there are great and almost insurmountable difficulties to be encountered; but what I have said will come to pass as sure as you live."

"Les esprits partagés, s'égarant dans des routes différentes, perdent l'immense avantage qui résulterait de leurs forces réunies."

"The first step to be taken, is to study carefully the fundamental phenomenon above described, and to examine all the various circumstances under which it presents itself."

"Je ne trouve rien de si pénible que d'avoir à mener des hommes."

"Ce n'est point l'observation mais la théorie qui m'a conduit à ce résultat que l'expérience a ensuite confirmé."

"Dans le choix d'un système, on ne doit avoir égard qu'à la simplicité des hypothèses; celle des calculs ne peut être d'aucun poids dans la balance des probabilités. La nature ne s'est pas embarrassée des difficultés d'analyse; elle n'a évité que la complication des moyens. Elle paraît s'être proposé de faire beaucoup avec peu : c'est un principe que le perfectionnement des sciences physiques appuie sans cesse de preuves nouvelles."

"Si l'on s'est quelquefois égaré en voulant simplifier les éléments d'une science, c'est qu'on a établi des systèmes avant d'avoir rassemblé un assez grand nombre de faits. Telle hypothèse, très-simple quand on ne considère qu'une classe de phénomènes, nécessite beaucoup d'autres hypothèses lorsqu'on veut sortir du cercle étroit dans lequel on s'était d'abord renfermé. Si la nature s'est proposé de produire le maximum d'effets avec le minimum de causes, c'est dans l'ensemble de ses lois qu'elle a dû résoudre ce grand problème. Il est sans doute bien difficile de découvrir les bases de cette admirable économie, c'est-à-dire les causes les plus simples des phénomènes envisagés sous un point de vue aussi étendu. Mais, si ce principe général de la philosophie des sciences physiques ne conduit pas immédiatement à la connaissance de la vérité, il peut néanmoins diriger les efforts de l'esprit humain, en l'éloignant des systèmes qui rapportent les phénomènes à un trop grand nombre de causes différentes, et en lui faisant adopter de préférence ceux qui, appuyés sur le plus petit nombre d'hypothèses, senties plus féconds en conséquences."

"On graduating from the school, a studious young man who would withstand the tedium and monotony of his duties has no choice but to lose himself in some branch of science or literature completely irrelevant to his assignment."

"The rattling of the relays of the Z4 was the only interesting thing to be experienced in Zurich's night life!"

"Der Glaube an eine bestimmte Idee gibt dem Forscher den Rückhalt für seine Arbeit. Ohne diesen Glauben wäre er verloren in einem Meer von Zweifeln und halbgültigen Beweisen."

"Only too often the inventor is the idealist who, like Mephisto, tries to improve the world, only to be crushed by harsh realities. If he wants to carry through his ideas, he is forced to do business with the wielders of power, whose sense of reality is sharper and more developed."

"Undecided about whether to pursue art or engineering, he pursued engineering, but with a continued interest in design—for his senior school project, he had designed a city of the future (à la Fritz Lang's Metropolis) based on a hexagonal grid. Like Alan Turing, Zuse was educated in a system that focused on a child's emotional and philosophical life as well as his intellectual life, and at the end of school, like Turing, Zuse found himself to be something of an outsider—to the disappointment of his very conventional parents, he no longer believed in God or religion."

"After the war Zuse constructed the Z4 computer, which became the world’s first commercially used computer. Zuse is also credited with writing the first programming language for his computers: Plankalkül, meaning calculus for programs. As an engineer by trade, Zuse was mainly focused on building a working machine that could perform calculations. He was not at all concerned with the theory of computation, which at that time was explored by renowned mathematicians in the academic world like Schönfinkel, Church, Post, Kleene, and Turing. Because of this, Zuse was not an established name in the academic community as a theoretical computer scientist. It is known however, that Turing and Zuse were familiar with each other’s work (Zenil, 2012). Although Zuse has always been more characterized as an engineer than a theorist. This is perhaps one of the reasons why his main work on computation in physics has been relatively unnoticed in the academic community for so long."

"History is a graveyard of aristocracies."

"The assertion that men are objectively equal is so absurd that it does not even merit being refuted."

"Assume that the new elite were clearly and simply to proclaim its intentions which are to supplant the old elite; no one would come to its assistance, it would be defeated before having fought a battle. On the contrary, it appears to be asking nothing for itself, well knowing that without asking anything in advance it will obtain what it wants as a consequence of its victory."

"It is a known fact that almost all revolutions have been the work, not of the common people, but of the aristocracy, and especially of the decayed part of the aristocracy."

"The economic and social theories used by those who take part in the social struggle ought to be judged not by their objective value but primarily for their effectiveness in arousing emotions. The scientific refutation of them which can be made is useless, however correct it may be objectively."

"When it is useful to them, men can believe a theory of which they know nothing more than its name."

"Men follow their sentiments and their self-interest, but it pleases them to imagine that they follow reason. And so they look for, and always find, some theory which, a posteriori, makes their actions appear to be logical. If that theory could be demolished scientifically, the only result would be that another theory would be substituted for the first one, and for the same purpose."

"The diverse natures of men, combined with the necessity to satisfy in some manner the sentiment which desires them to be equal, has had the result that in the democracies they have endeavored to provide the appearance of power in the people and the reality of power in an elite."

"Society is not homogeneous, and those who do not deliberately close their eyes have to recognize that men differ greatly from one another from the physical, moral, and intellectual viewpoints."

"Empirical laws ... have only slight or even no value beyond the limits within which they have been observed to be true."

"Among civilized peoples, especially the very wealthy population of the United States of America, women have become objects of luxury who consume but do not produce."

"Increase in the wealth per capita fosters democracy; but the latter, at least according to what we have been able to observe up to now, entails great destruction of wealth and even eventually dries up the sources of it. Hence it is its own grave-digger, it destroys what gave it birth."

"Usually, so far as improvement in the people's economic conditions is concerned, humanitarians simply play the role of the busybody."

"For a very long time, and among a large number of peoples, political power has belonged to the owners of the land."

"We don't claim that there is plenty of money. Greek people are not asking for money. They are asking for work and the ability to make a living."

"I want to be honest with you. We did not achieve the agreement we expected before the January elections... I feel the deep ethical and political responsibility to put to your judgment all I have done, successes and failures."

"What's needed is patience and composure. The bank deposits of the Greek people are fully secure. The same applies to the payment of wage and pension — they are also guaranteed."

"Sophocles taught us that the greatest of all human laws is justice… and I think that is something we have to remember."

"Millions of Europeans looked with hope to this country, and it was Alexis Tsipras’s Syriza government (elected that January) [2015] that had the responsibility for keeping that window open, and for opening it up further for others. What these millions wanted a break from was not even true neoliberalism, but what I would call bankruptocracy — a new regime in which the greatest power was wielded by the most bankrupt bankers. Tsipras’s surrender in July 2015 closed that window of opportunity... Ever since he surrendered to the troika, Tsipras... dilemma put to progressives: “Who do you want to torture you — an enthusiastic torturer, or someone like me who doesn’t want to torture you but will do it to keep his job?” This was his line in September 2015 [in that year’s second general election, after Syriza caved to the troika]. But four years later, after pushing through the most naked, harshest austerity policies anywhere in Europe... he can no longer blackmail progressives with lesser-evil arguments... Can you believe that Tsipras has become best buddies with Benjamin Netanyahu?"

"I once spoke to a politician, a man that I respect and I will say the name: Alexis Tsipras. And speaking of this and the accords not to let [migrants] in, he explained the difficulties to me, but in the end, he spoke to me from the heart and said this phrase: ."

"Progress in every country depends mainly on the education of its people. Without education, we are a nation of children. The difference between one man and another, apart from birth and social position, consists in the extent of knowledge, general and practical, acquired by him. We may safely assume that man in all countries within certain limits start with the same degree of intelligence. A civilised nation is distinguished from an uncivilised one by the extent of its acquired intelligence and skill."

"Self-examination not moral or spiritual, but secular - that is, a survey and analysis of local conditions in India and a comparative study of the same with those in other parts of the globe."

"The Indian mind needs to be familarised with the principles of modern progress, a universal impulse for enquiry and enterprise awakened, and earnest thinking and effort promoted. A new type of Indian citizenship purposeful, progressive and self-respecting should be created, and self-reliant nationhood developed."

"You are for developing village industries and I favour both heavy industries and village industries. To the extent that you propose to advance village industries, I am at once with you. I can never persuade myself to take up a hostile attitude towards any constructive work, from any quarter, least of all towards work attempted by one with your brilliant historic achievements in public life....I am in favour of heavy industries because heavy industries will save the money that is going out of the country in large sums every year; heavy industries are required to provide the local manufactures of machinery and equipment required by our railways and for defence forces and heavy industries are required also for supplying machinery and tools for the village industries themselves. I recommend more extended use of mechanical power because it produces results for the country much more rapidly than human power. The object is to get food and commodities required by our people for a decent standard of living as speedily as possible."

"Mental energy is wasted in caste disputes and village factions."

"In our warm climate, we have not got the same incentive to exertion and we may never be able to attain the same level of prosperity as Western people."

"If you feel that by giving this title, I will praise your government, you will be disappointed. I am a fact finding man."

"He wrote in his letter addressed to Jawahar Lal Nehru, then Prime Minister of India when the Bharat Ratna title was conferred on him, as quoted in"

"These facts and figures must serve as an eye-opener to the people of Mysore. I refer to them here not because I have any hopes of our reaching the levels of prosperity of the two Colonies, but because it will do us good to know what organization and human endeavour are capable of achieving under favourable conditions. / The nationality of our people rests on a religious and fatalistic basis, not on an economic basis, as in the West. There are still people among us who believe that the golden age was in the past, the world is on the down-grade and the old-word conditions might yet be reproduced some day. The Hindu ideal of life is that this world is a preparation for the next and not a place to stay in and make ourselves comfortable. We are devoted to past ideals, although, out of necessity or from prospect of personal gain, we have partly taken to Western methods of work and business. There is a yearning for the old ideals and a half-hearted acquiescence in the new and, on the whole, the genius of the people is for standing still. / If we are to follow in the wake of other countries in the pursuit of material prosperity, we must give up aimless activities and bring our ideals into line with the standards of the West, namely, to spread education in all grades, multiply occupations and increase production and wealth. All other activities should conform themselves to the economic idea. [148-149]"

"I walked my way to good health"

"It is better to work out than rust out."

"The development of this system, the [Block System] is due entirely to the genius of Mr Vishvesharaya, certainly one of the ablest officers, European or Indian, of the Public Works Department, with whom it has been my pleasure and honour to work"

"As sound as what one might expect from the distinguished engineer who drew them up. He has shown the way to turn dire misfortune into a positive blessing. The proposals are without blemish. I strongly advocate carrying out the scheme."

"Was one of the greatest patriots of India belonging to no party, adopting no slogans, attached to no shibboleths but dedicated to the upliftment of his countrymen. He is undoubtedly the best known engineer of India. He was an able administrator, educationist and foresighted planner. His name ranks high among those who promoted industrialisation of India. He is known for his dictum "Industrialise or perish"."

"Industrialize or Perish"

"In spite of strength of my conviction, I have certain great regard for your fine abilities and love for the country and that shall be unabated whether I have the good fortune to secure your cooperation or face your honest opposition....I see that we hold perhaps diametrically opposite views. My conviction based upon extensive experiences of village life is that in India at any rate for generations to come, we shall not be able to make much use of mechanical power for solving the problem of the ever growing poverty of the masses."

"He is an engineer of integrity, character and broad national outlook who could take an unbiased view, resist local pressures and whose views would be respected and accepted by all."

"...I do not say any form which you construct this way is a good form, or must lead to a good solution; but there are forms which can lead to good solutions, and of course that is only the first link in a whole chain of investigations, and the other links in the investigation, model tests, measuring of the first structure, or a model test in scale 1:1 as we have it out here, these are of primary importance. So the engineer[‘s] problem is remaining all the same, but it is the first link, here, the shaping which has been lacking up to now, and this method can lead to a very nice solution."

"[Architects and engineers] must be willing to subordinate themselves to the emerging logic of the shell’s form as it evolves through experimentation."

"Among others there are three methods for shaping shells: the freely shaped hill, the membrane under pressure and the hanging cloth reversed."

"[T]heoretical considerations and derivations … are always based on severe simplifications of the assumptions."

"Heinz Isler’s innovative methods for determining the shape of reinforced concrete shells first became widely known through his presentation of a paper entitled ‘New Shapes for Shells’... At that time reinforced concrete shells were a very popular form of construction worldwide. However, their forms were almost entirely those which could be described easily by geometrical and mathematical formulae e.g. barrel vaults, spherical domes, conoids, and constructed using relatively simple formwork as in the case of the straight boards used for hyperbolic paraboloid surfaces. ...[A] rounded mound of soil encircled by a trench and captioned “Form for a shell in concrete”; a stepped swimming pool of organic shape dug into the ground, labelled “Plastic shell as swimming pool”; and some rectangular ‘bubble’ shell roofs... illustrate the two of the three form-finding methods..."

"The majority of Isler's shells are specifically designed to remain in compression under all load conditions, but in the case of the hyperbolic paraboloid [Heilig Geist Kirche (Holy Spirit Church), ] both tension and compression stresses normally occur. To overcome the adverse effects of the tension stresses Isler applied a pre-stress through the shell surface by post-tensioning using eight cables between the wall tops... This he simulated in the workshop model... as usual for Isler's experimental technique, the roof loads were applied by means of small wooden discs distributed evenly over the surface to simulate uniformly distributed load. In turn these were connected to a hanging network of timber spreader bars and strings in such a way that the distributed load could be applied with a single weight or hydraulic jack. The pre-stressing force was applied by small hydraulic jacks. This arrangement allowed vertical, horizontal and pre-stressing loads to be applied in appropriate combinations, simulating the shell self-weight, full snow load, partial snow, etc. Uplift loads induced by the wind were assessed by appropriate factoring and reversing the stresses (derived from electrical strain gauges attached to the model surface) resulting from downward loads."

"Heinz Isler's involvement in the development of the design for the "Steinkirche" ... could not be more different from that of the church at Lommiswil. ...[A] competition... [was] won by Werner Schmidt... Isler was consulted as an expert in shell design and construction. To understand the structural behaviour... and, in particular, the effect of these glazed openings, Isler returned to his tried and tested methods using physical models. ...To transfer forces across the openings in the shells, the sides of the cut were to be linked by steel bars, whilst the glazing was installed in the plane of the cut surfaces of the removed wedges. ...Isler made plaster casts and Styrofoam models... From these he cast thin latex rubber shells complete with the cut-out openings and with flexible cords linking the two sides... These rods were disposed in a diagonal "zig-zag" configuration similar to that of the lacing on a traditional leather football or shoelaces... When the rubber surface was loaded it was easy to see how the flexible cords behaved. ...compression near the top of the ovoid forms and in tension towards the base. In the final scheme the forces are carried by hightensile bars... To enable the same anchorage detail to be used in all locations, Isler developed a "brush anchor"... Heinz Isler's... method for determining the shape of his shells was to accurately measure a plaster cast of the form."

"Heinz Isler strongly believes that the work of the architect and the engineer cannot be separated in shell design because of its inherent integration of aesthetics and statics. [An] ideal architect-engineer relationship is epitomized by the collaboration of Heinz Isler and Michael Balz... Isler taught Balz various form-finding methods, and consequently the architect began to design his own creative shells by exploring hanging membranes and inflated forms. Although Isler and Balz only worked on a few projects together in Germany, the resulting shells (including the , the Stetten Theater, and the Balz House) are some of the most elegant works that Isler produced in his career."

"Isler’s form-finding method of the reversed hanging cloth was discovered serendipitously in the summer of 1955. On a building site he saw a piece of wet burlap draped over a mesh of steel bars. He noticed that within one square opening, the burlap hung in a domelike shape under its own weight. Isler concluded that the cloth carried itself in pure tension, so that when it was reversed it would become a form in pure compression. ...the three-dimensional version of Hooke’s discovery; a piece of cloth that is hung from several fixed points will create an ideal form that is completely in tension. If the shape is “frozen” and flipped, the resulting shell should be in complete compression, which is convenient for concrete structures since concrete performs well in compression but poorly in tension. The main difference between the work of Gaudí and Isler is that the Spanish architect found his form through a network of two-dimensional catenary shapes while the Swiss engineer only used one hanging element (a piece of fabric) to determine the ideal form of his structure."

"Isler’s methods were completely based on physical modeling and experiments. In fact, he rarely used general mathematical theories when designing his shells."

"is a reinforced concrete shell with the shell thickness varying from 9 cm to 12 cm [3.5 to 4.7 in.]... Since the structure is in compression, instability is an issue, particularly at the edges and supports of the shell. Isler does not use any stiffening edge beams in the Naturtheater Grötzingen; instead, he upturns the edges (which corresponds to the overhanging fabric in the hanging model) so that the double curvature required for increased stiffness is achieved without any increase in shell thickness... However, to reduce the stresses in the supports, Isler simply tapered the legs so that they were thicker than the rest of the shell."

"I understand that many of the decisions I have taken are not so easy for many people."

"If there were any alternative to increasing tariffs, I would have taken it, but there is not."

"My concern is making things work. It is what my people need."

"I promised to tell people the truth. I don’t believe in messianic leaderships but in teamwork."

"It is not so easy to [rebalance] an economy after a decade of lies. They were taking Argentina towards the same kind of problems that Venezuela is facing now."

"Things cannot change in just seven months, but every day we improve a little bit more."

"We want to be part of the world, part of the future, part of the solution."

"I can’t understand how people can say they [Maduro's Venezuela] are practising democracy — that’s not democracy."

"This shows a different Argentina. There is a new generation in politics that wants to be part of the 21st century."

"We have to put more focus on them (younger members of MCA to run the party), because I know the next change of government might only happen after 10 years."

"In Malaysia, you cannot misrepresent yourself as an accountant unless you are a member of MIA (Malaysian Institute of Accountants)."

"As Malaysia’s longest-serving Prime Minister, Tun M (Mahathir Mohamad) has left an indelible mark on the nation’s political landscape. While we may differ in our political views and approaches, his long-standing role in public service and national governance remains a significant part of Malaysia’s political history."

"One of my missions was to raise the voice of women like me, raise the voice of migrant women and women of colour so it could be part of the political system."

"Money is like an iron ring we've put through our noses. We've forgotten that we designed it, and it's now leading us around. I think it's time to figure out where we want to go--in my opinion toward sustainability and community--and then design a money system that gets us there."

"While economic textbooks claim that people and corporations are competing for markets and resources... in reality they are competing for money - using markets and resources to do so. So designing new money systems really amounts to redesigning the target that orients much human effort."

"Greed and competition are not a result of immutable human temperament... greed and fear of scarcity are in fact being continuously created and amplified as a direct result of the kind of money we are using. For example, we can produce more than enough food to feed everybody, and there is definitely enough work for everybody in the world, but there is clearly not enough money to pay for it all. The scarcity is in our national currencies. In fact, the job of central banks is to create and maintain that currency scarcity. The direct consequence is that we have to fight with each other in order to survive."

"Money is created when banks lend it into existence. When a bank provides you with a $100,000 mortgage, it creates only the principal, which you spend and which then circulates in the economy. The bank expects you to pay back $200,000 over the next 20 years, but it doesn't create the second $100,000 - the interest. Instead, the bank sends you out into the tough world to battle against everybody else to bring back the second $100,000."

"Your money's value is determined by a global casino of unprecedented proportions: $2 trillion are traded per day in foreign exchange markets, 100 times more than the trading volume of all the stockmarkets of the world combined. Only 2% of these foreign exchange transactions relate to the "real" economy reflecting movements of real goods and services in the world, and 98% are purely speculative. This global casino is triggering the foreign exchange crises which shook Mexico in 1994-5, Asia in 1997 and Russia in 1998. These emergencies are the dislocation symptoms of the old Industrial Age money system."

"Economic injustice is one of the most intractable problems that humanity has had because, actually economic justice has never really existed in most societies... in a long history of mankind, 5,000 years. There have been a couple of exceptions where I believe it has happened... and we can see why they were exceptions. That's what's going to get interesting. So here's my plan, first i'm going to give you the context..."

"Deep in our hearts, we all want to leave a better world for our children and we cherish the hope that we may experience this for ourselves in our own lifetime. However, there is growing concern that many of the challenges we now face are unrelenting and more and more people question our ability to address them effectively. Indeed, despite some breakthroughs and the valiant efforts in the public and private sectors, the challenges to our planet and society are growing both in scope and severity with each passing decade."

"In this new Millennium, we are being challenged by four megatrends that are converging upon us over the next twenty years, namely:"

"Why have our efforts, the countless billions of pounds and dollars spent all over the world, the many treaties enacted and initiatives taken, not stopped the destruction of our environment, nor effectively addressed a myriad of social issues? Is it possible that our attentions and efforts are misdirected? Or are the challenges and issues facing our world today being fueled by an even deeper systematic problem? The short answer to this last question is yes."

"The Future of Money is a compendium report about solutions already implemented by thousands of people around the world, who have had the courage to first identify, then directly address the underlying mechanism of their problems. Their initiatives to date are small-scale, but I see them as seedlings which - if allowed to grow - have the potential to provide effective and permanent solutions by which conditions for mankind and other living systems may improve dramatically within our own lifetimes."

"Money or lack thereof, is a fundamental component of our lives. It is not, however, just the lack of money that is precipitating present trends or preventing us from addressing current challenges. Rather, it is the limited functionality of our money and monetary system that is a major force behind our present disorders. Many of the problems we face, and the solutions we seek, reside within the architecture of our current monetary system and in our understanding of, and our agreements around, money."

"We allocate a great portion of our physical, emotional, and mental energy to getting, keeping, and spending money - but how many of us really know what money is or where it comes from? Money is created when banks lend it into existence."

"In pre-Victorian England the world was oblivious of pollution, greenhouse effects and overpopulation. Nationalism, competition, endless growth and colonisation were encouraged. These values are what shaped the monetary and banking systems we inherited."

"However, is this what best serves our world today? I submit that those aspects of our monetary system that met the objectives of another time and age are now inadequate for the challenges facing us during an Information Age. This is particularly true in light of the fact that working solutions are already underway, with thousands of communities around the world taking their own money initiatives. They are creating new wealth, while solving social problems without taxation or regulation. They are empowering self-organising communities, while increasing overall economic and social stability. Finally, they enable the creation of very necessary social capital without attaching the established capital formation process."

"There are three reasons why I believe the current, ongoing monetary initiatives have a better chance of success than ever before: First and foremost, these money innovations are not attacking the official money system. What they do instead is complement the conventional money system, providing new tools that can operate in parallel with it, without replacing it. That is why I call them 'complementary currencies', and not, 'alternative' ones."

"This is not a book on economics or economic theory. I am not an economist. My expertise lies in international finance and money systems. This is why I have adopted here a whole systems approach to money. Whole systems take into account a broader, more comprehensive arena than economics does; it integrates not only economic interactions but also their most important side effects. This includes specifically in our case the effects of different money systems on the quality of human interactions, on society at large, and on ecological systems. In essence, money is a lifeblood flowing through ourselves, our society, our global human community, and should be acknowledged and treated consciously."

"Part One of The Future of Money elucidates the mysteries of the current official currency system. Part Two widens the view to encompass and feature newly emerging money systems. Therefore, this book deals with money in the world outside of us, describing how different money systems shape society."

"When we think about money, we tend to take for granted its basic characteristics, which have remained unchanged for centuries. We are not likely to visit the hidden assumptions embedded in our familiar money system, and we are even less likely to re-examine them in search of solutions."

"Part One brings our hidden assumptions about money to the surface. In doing so, it also brings to light new potentials for our interactions with money. It is not about how to make, invest or spend money. There are already plenty of books about all of that. It is about the concept of money, and how different money systems shape different societies."

"People concerned with sustainability in general – with issues like climate change, environmental degradation, food and water shortages, population growth and energy use – tend not to worry about the money system. Nor do they tend to look for solutions that involve monetary innovations. Even those economists who are also concerned about sustainability in principle are seldom aware that our money system systematically encourages unsustainable behaviour patterns that may end up threatening human survival on this planet."

"This Report shows that the current money system is both a crucial part of the overall sustainability ‘problem’ and a vital part of any solution. It makes clear that awareness of this ‘Missing Link’ is an absolute imperative for economists, environmentalists and anyone else trying to address sustainability at a national, regional or global level. Aiming for sustainability without restructuring our money system is a naive approach, doomed to failure."

"The money system is bad for social and environmental sustainability. But this Report also proves – perhaps more surprisingly – that the money system is bad for the money system itself. Unless we fundamentally restructure it, we cannot achieve monetary stability. Indeed, this Report also demonstrates that monetary stability itself is possible if, and only if, we apply systemic biomimicry – that is to say, if we complement the prevailing monetary monopoly with what we call a ‘monetary ecosystem’."

"Dealing with the Eurozone Crisis... Another Way? As we go to press, the Greek electorate – after two years of drastic austerity measures – has voted clearly against the cuts, the bailout and the political mainstream. Chaos in the eurozone seems one step closer. So we take this opportunity to outline how just one of the proposals from this book can be applied now, in Greece, Spain or any other country facing this kind of crisis. It’s a solution that mainstream financiers and media avoid discussing, but it’s elegant and simple. It would work, and the necessary (Open Source) software is available now. Current monetary orthodoxy says that 100% of the Greek (or any other) economy must be either ‘in’ or ‘out’ of the eurozone. Everybody knows that either option will entail even higher unemployment and yet more misery. But it doesn’t have to be that way! The core principle of complementary currencies, as set out here, is that they run alongside the main currency, increasing resilience and flexibility for the entire socio-economic system."

"Here’s our systemic solution in a nutshell:"

"Greece continues to use the euro for all international business: tourism, shipping, exports and imports, etc. Taxes are levied in euros on profits made in these activities, and used to service the country’s national debt."

"In addition, any Greek city/region wanting to participate can issue its own local currency (generically called ‘Civics’ in the case study in chapter VIII). Civics are used to pay for important local, social and environmental programs. In our example, 1 Civic is issued to anyone who completes 1 hour of approved service to the community. Projects for which Civics are paid should be decided democratically and locally."

"The issuing city/region requires payment from each household of, say, 10 Civics/quarter..."

"In his book The Future of Money, Lietaer points out - as the government did yesterday - that in situations like ours everything grinds to a halt for want of money. But he also explains that there is no reason why this money should take the form of sterling or be issued by the banks. Money consists only of "an agreement within a community to use something as a medium of exchange." The medium of exchange could be anything, as long as everyone who uses it trusts that everyone else will recognize its value. During the Great Depression, businesses in the United States issued rabbit tails, seashells and wooden discs as currency, as well as all manner of papers and metal tokens. In 1971, Jaime Lerner, the mayor of Curitiba in Brazil, kick-started the economy of the city and solved two major social problems by issuing currency in the form of bus tokens. People earned them by picking and sorting litter: thus cleaning the streets and acquiring the means to commute to work. Schemes like this helped Curitiba become one of the most prosperous cities in Brazil."

"I have been reading the literature on sustainability for 40 years. I have attended hundreds of conferences on the same theme over that period. However, before I first encountered Bernard’s work, I had never heard anyone describe the financial system as a cause of our society’s headlong rush to collapse. Quite the contrary: there is a widespread effort to identify how minor changes in the financial system could move global society over to a path that leads to sustainability..."

"We will never create sustainability while immersed in the present financial system. There is no tax, or interest rate, or disclosure requirement that can overcome the many ways the current money system blocks sustainability. I used not to think this. Indeed, I did not think about the money system at all. I took it for granted as a neutral and inevitable aspect of human society. But since beginning to read Bernard’s analyses I have a very different view. He is not alone. For example Thomas Greco has written on this topic. But the depth of Bernard’s practical experience, theoretical understanding, and historical perspectives on the financial system leave him without peer."

"Dr. Bernard Lietaer, Co-creator of the Euro and a pioneer in community currencies, joined the Bancor Protocol Foundation last year and will advise the project. Both he and the Bancor team have been outspoken on the potential of community currencies to combat global poverty using a bottom-up approach to sustainable economic development. The efforts come as a number of groups aim to use blockchain and smart contracts to build the next generation of aid and impact investing tools."

"Today we mourn the passing of Bernard Lietaer, one of the greatest monetary innovators of our time & President of the Bancor Foundation. Bernard was a financial justice warrior. He will be truly missed... A student at MIT in the late 1960s, Lietaer conducted an in-depth study on floating exchange rates. While working in the central banking sector, he was involved with the development of the European Currency Unit, which was a precursor to the Euro. His innovative ideas about money and how it could be changed to work for people were developed well before the blockchain was invented. He had long seen the potential in decentralized financial systems and how they could tackle issues with fiat currency monopolies."

"Bernard was an international expert in the design and implementation of currency systems. He studied and worked in the field of money for more than 30 years in an unusually broad range of capacities including as a Central Banker, a fund manager, a university professor, and a consultant to governments in numerous countries, multinational corporations, and community organizations. He co-designed and implemented the convergence mechanism to the single European currency system (the Euro) and served as president of the Electronic Payment System at the National Bank of Belgium (the Belgian Central Bank). He co-founded and managed GaiaCorp, a top performing currency fund whose profits funded investments in environmental projects. A former professor of International Finance at the University of Louvain, he has also taught at Sonoma State University and Naropa University. He was currently a Research Fellow at the Center for Sustainable Resources of the University of California at Berkeley. He was also a member of the Club of Rome, a Fellow of the World Academy of Arts and Sciences, the World Business Academy, and the European Academy of Sciences and Arts."

"More importantly, I think one’s attitude towards work also matters. If you’re hard-working and people find that you put in all your efforts into your work, you will get patronized to a large degree. All through my 41 years in the industry, I’ve always been busy with work. There’s never been a time I have no job to do."

"Women are good at multi-tasking, parents should bring up their kids properly today so they can have a peaceful tomorrow."

"When you pick up anything to do, do it very well; don’t be shoddy. Put in your best always and make sure your best is good enough. If you work hard, God will bless you except there is something very wrong."

"I believe that Nigerian engineers are as good as engineers anywhere in the world because we are trained properly. But the problem we have is this Re‐training, Continuous Professional Development activity which I know that Tech Grade Consulting tries as much as possible to carry out. But you see the problem is with us. We do not believe in going back to school. We don’t believe in up grading our knowledge. We don’t believe in improving on whatever we had had before. Most of us forget that engineering is not static. That is our problems. So we end up haviing very old and obsolete information and knowledge which we use in doing our work. I am as guilty as everybody and again, I think it is the society. The environment is not being created to take care of this problem. Edition.pdf"

"“You’ll always stand out if you aren’t sloppy”"

"I feel a woman is first and foremost a human being before being a woman."

"Your work goes a long way in telling what kind of person you are. If you’re a sloppy person, it will manifest itself in your presentation."

"“I love giving. I’ve trained over 100 kids, and I don’t know 99.9 per cent of them. I pay school fees for indigent children in my mother’s and father’s villages and I’ve been doing it since I was in my thirties,”"

"I had formed the theory that the true rôle of the Infantry was not to expend itself upon heroic physical effort, nor to wither away under merciless machine-gun fire, nor to impale itself on hostile bayonets, nor to tear itself to pieces in hostile entanglements — (I am thinking of Pozières and Stormy Trench and Bullecourt, and other bloody fields) — but, on the contrary, to advance under the maximum possible protection of the maximum possible array of mechanical resources, in the form of guns, machine guns, tanks, mortars and aeroplanes; to advance with as little impediment as possible; to be relieved as far as possible of the obligation to fight their way forward; to march, resolutely, regardless of the din and tumult of battle, to the appointed goal; and there to hold and defend the territory gained; and to gather in the form of prisoners, guns and stores, the fruits of victory."

"This achievement is, above everything else, an illustration, which should become classic, of the maxim that in war the moral is to the material as three to one."

""Feed your troops on victory," is a maxim which does not appear in any text-book, but it is nevertheless true."

"The nation that wishes to defend its land and its honour must spare no effort, refuse no sacrifice to make itself so formidable that no enemy will dare to assail it. A may be an instrument for the preservation of peace, but an efficient Army is a far more potent one."

"It is not very difficult to exclude the women and they do not exclude us; we get involved in as many things as we like to."

"I think that the needs of the people, that is, the majority of the people – healthcare, education, security, and water."

"I am also looking forward to making impact on the lives of women."

"We have stayed committed to the Party's decision to establish Comrade Xi Jinping's core position on the Party Central Committee and in the Party as a whole."

"My parents are both one of eight children, which tells you how many aunts and uncles and cousins I have, and who, by virtue of their link to me through family, have a "right" over me!"

"I studied engineering because my father and I agreed that my aim to be a singer/dancer/actress could come after I had one degree under my belt."

"Suffice to say, I finished my engineering degree and started working as an engineer in London in 1989, and have done so ever since."

"Fast forward to 2011 and I moved back to Sierra Leone to build the first five-star hotel in the country, with funding raised by Sierra Leoneans and a company, IDEA UK, owned by Sierra Leoneans."

"As a believer in hard hats and lipstick, I hope that everyone will realise that from an early age, we should allow our children (boys and girls) to be the best they can be and not put anyone, especially our girls, in a box."

"Working with young girls from all walks of life, I try to use their own environment to show them how they can start to identify problems and find solutions in their homes, communities and ultimately our country, through engineering."

"Yes, we are mothers, wives, nurses and teachers, but we're also engineers, rocket scientists and neurophysicists."

"Across the world, poor children are at higher risk of dying. Unless we urgently get more money into the hands of women, who spend more on the wellbeing of their families, children will continue to die. The economic marginalisation of women, too, is a lingering epidemic; and it threatens the growth and stability of the global economy. Unlike AIDS, this epidemic remains at its peak; funding remains flat and indicators deteriorate. Where is the comprehensive action?"

"In Uganda people used to think that construction, civil engineering and mechanical work were for men. I wanted to break this stereotype that certain jobs are for men and others are for women. I also wanted to show people that women can do the same things that men can do."

"It wasn’t easy because people were telling me I couldn’t do it (pursue a career in engineering) and were suggesting that I should take a different course such as electrical or business. But then, when I came second in the class during practical exams, everyone was very surprised and they couldn’t believe (I could achieve it). I proved them wrong and then things changed. People now look at me as a role model, someone who is different. Many young people are following in my footsteps and many are starting to think that women really can do men’s jobs."

"Men were amazed when they saw us working on site, so I think that’s something really good. At first they thought I was challenging them and didn’t believe (I would succeed), but then they said “good, you’ve done it”."

"It’s certainly been a topic of interest – including at COP26. There is a growing understanding that to meet net zero goals, nuclear will need to play a larger role."

"The role of Canada’s nuclear regulator is to protect people from risk, not get in the way of progress."

"We know the challenges we face. But we also know that we are up to the task – and that, together, we can achieve real progress. It is up to us to lead by example. It is up to us to seize this opportunity. It is up to us not only to ask – but to help answer – the question: “What can we do better?"

"It's probably the most sophisticated fuel cycle in the world that will cover all aspects of nuclear power, and we do each part of it to world standards, where the world looks towards us"