Fellows Of The Royal Society

"Turing had a strong predeliction for working things out from first principles, usually in the first instance without consulting any previous work on the subject, and no doubt it was this habit which gave his work that characteristically original flavor. I was reminded of a remark which Beethoven is reputed to have made when he was asked if he had heard a certain work of Mozart which was attracting much attention. He replied that he had not, and added "neither shall I do so, lest I forfeit some of my own originality.""

"Very belatedly in 1947, Darwin [Sir Charles Darwin, great-grandson of the famous Charles Darwin] agreed to set up a very small electronics group [...] It was not easy to have the imagination to foresee that computers were to become one of the most important developments of the century."

"What may appear as a towering peak to one may seem but an ordinary eminence to another."

"We are perhaps too near the age of transition to see clearly the interplay of all that made for progress. Each of us has had his own peculiar training, his own personal contact with the mighty ones of the immediate past; and this forms as it were a telescopic tube determining limits to our field of vision. No doubt we may range the whole horizon; but after all we look from our own point of vantage."

"Scientific theory and its application to the growing needs of mankind advance hand in hand."

"La vie n'est bonne qu'à deux choses : à faire des mathématiques et à les professer. (The only two good things in life are doing mathematics and teaching it.)"

"That which can affect our senses in any manner whatever, is termed matter."

"In many different fields, empirical phenomena appear to obey a certain general law, which can be called the Law of Large Numbers. This law states that the ratios of numbers derived from the observation of a very large number of similar events remain practically constant, provided that these events are governed partly by constant factors and partly by variable factors whose variations are irregular and do not cause a systematic change in a definite direction."

"An experiment is a question which we ask of Nature, who is always ready to give a correct answer, provided we ask properly, that is, provided we arrange a proper experiment."

"There is more in a common bubble than those who have only played with them generally imagine."

"If the fork is not removed when the spider has arrived it seems to have the same charm as any fly: for the spider seizes it, embraces it, and runs about on the legs of the fork as often as it is made to sound, never seeming to learn by experience that other things may buzz besides its natural food."

"Science is too important not to be a part of a popular culture."

"Skepticism must go hand in hand with rationality. When theories are shown to be false, the correct thing to do is to move on."

"Science is unreasonably effective, it's generated knowledge beyond all expectation. It's also delivered perspective. Yes, we are an insignificant speck in an infinite universe, but we're also rare. And because we're rare, we're valuable. So what are we to do to secure our future? Well, we must learn to value the acquisition of knowledge for its own sake, and not just because it grows our economy or allows us to build better bombs. We must also learn to value the human race and take responsibility for our own survival. Why? Because there's nobody else out there to value us or to look after us. And finally, most important of all, we must educate the next generation in the great discoveries of science and we must teach them to use the light of reason to banish the darkness of superstition, because if we do that, then at least there's a chance that this universe will remain a human one."

"We are the cosmos made conscious and life is the means by which the universe understands itself."

"Yes, [science is my God] in a sense. I'm comfortable with the unknown, that's the point of science. There are places out there, billions of places out there that we know nothing about. And the fact that we know nothing about them excites me, and I want to go out and find out about them. And that's what science is. So I think if you're not comfortable with the unknown, then it's difficult to be a scientist. So I don't need an answer; I don't need answers to everything. I want to have answers to find."

"As a fraction of the lifespan of the universe as measured from the beginning to the evaporation of the last black hole, life as we know it is only possible for one-thousandth of a billion billion billionth, billion billion billionth, billion billion billionth, of a percent (10^-84). And that's why, for me, the most astonishing wonder of the universe isn't a star or a planet or a galaxy. It isn't a thing at all. It's an instant in time. And that time is now. Humans have walked the earth for just the shortest fraction of that briefest of moments in deep time. But in our 200,000 years on this planet we've made remarkable progress. It was only 2,500 years ago that we believed that the sun was a god and measured its orbit with stone towers built on the top of a hill. Today the language of curiosity is not sun gods, but science. And we have observatories that are almost infinitely more sophisticated than those towers, that can gaze out deep into the universe. And perhaps even more remarkably through theoretical physics and mathematics we can calculate what the universe will look like in the distant future. And we can even make concrete predictions about its end. And I believe that it's only by continuing our exploration of the cosmos and the laws of nature that govern it that we can truly understand ourselves and our place in this universe of wonders."

"What scientists are attached to is journeys into the unknown and discovering things that are completely unexpected and baffling and surprising."

"We have written the evidence of our existence onto the surface of our planet. Our civilisation has become a beacon, that identifies our planet as home to life."

"Look at that! If you ever needed convincing that we live in the solar system, that we are on a ball of rock, orbiting around the Sun with other balls of rock, then look at that! That’s the solar system coming down and grabbing you by the throat."

"Anyone who thinks the Large Hadron Collider will destroy the world is a twat."

"He could not sing for them a sweet song, or create a "thing of beauty" which should be "a joy for ever," or touch their hearts, or fire their spirits, or deepen their reverence or their fervour. He was not a Poet, a Priest, or a Prophet, but only a cold, clear, Intelligence, raying down pure white light, which brightened everything on which it fell, but warmed nothing—a Star of at least the second, if not of the first magnitude, in the Intellectual Firmament."

"Christopher Wren, the leading architect of London's reconstruction after the great fire of 1666, lies buried beneath the floor of his most famous building, St. Paul's cathedral. No elaborate sarcophagus adorns the site. Instead, we find only the famous epitaph written by his son and now inscribed into the floor: “si monumentum requiris, circumspice”—if you are searching for his monument, look around. A tad grandiose, perhaps, but I have never read a finer testimony to the central importance—one might even say sacredness — of actual places, rather than replicas, symbols, or other forms of vicarious resemblance."

"Perhaps you have heard the story of Christopher Wren, one of the greatest of English architects, who walked one day unrecognized among the men who were at work upon the building of St. Paul's cathedral in London which he had designed. "What are you doing?" he inquired of one of the workmen, and the man replied, "I am cutting a piece of stone." As he went on he put the same question to another man, and the man replied, "I am earning five shillings twopence a day." And to a third man he addressed the same inquiry and the man answered, "I am helping Sir Christopher Wren build a beautiful cathedral." That man had vision. He could see beyond the cutting of the stone, beyond the earning of his daily wage, to the creation of a work of art—the building of a great cathedral. And in your life it is important for you to strive to attain a vision of the larger whole."

"Sir Christopher Wren Said, "I am going to dine with some men. If anyone calls Say I am designing St. Paul's.""

"He was of opinion that what we now vulgarly call the Gothick, ought properly and truly be named Saracenick Architecture refined by the Christians."

"A time will come when men will stretch out their eyes. They should see planets like our Earth."

"Architecture has its political Use; public Buildings being the Ornament of a Country; it establishes a Nation, draws People and Commerce; makes the People love their native Country, which Passion is the Original of all great Actions in a Common-wealth…. Architecture aims at Eternity."

"Cavendish procured Macquer's neutral salt using Macquer's method of distilling with nitre, producing copious red fumes... leaving... a cake of neutral arsenical salt. He then tried... dissolving arsenic in spirit of nitre, then adding pearl ashes... to obtain neutral arsenical salt. ...[His] discovery: what combined with the alkali ...was ...a new acid, "arsenical acid" ...[T]his new acid had "all the properties of an acid... unless perhaps it should fail in respect of taste which I have thought not proper to try." This research was the high point of Cavendish's researches on ."

"Yet, if such a being, who reversed the maxim nihil humani me alienum puto [nothing human is foreign to me], cannot be loved, as little can he be abhorred or despised. He was, in spite of the atrophy or non development of many of the faculties which are found in those in whom the "elements are kindly mixed," as truly a genius as the mere poets, painters, and musicians, with small intellects, and hearts and large imaginations, to whom the world is so willing to bend the knee."

"His brain seems to have been but a calculating engine; his eyes inlets of vision, not fountains of tears; his hands instruments of manipulation which never trembled with emotion, or were clasped together in adoration, thanksgiving, or despair; his heart only an anatomical organ, necessary for of the circulation of the blood."

"All that needed for its apprehension, more than the pure intellect, or required the exercise of fancy, imagination, affection, or faith, was distasteful to Cavendish. An intellectual head thinking, a pair of wonderfully acute eyes observing, and a pair of very skilful hands experimenting or recording, are all that I realise in reading his memorials."

"It only remains that I offer very briefly my own estimate of the character of the Philosopher. Morally it was a blank, and can be described only by a series of negations. He did not love; he did not hate; he did not hope; he did not fear; he did not worship as others do. He separated himself from his fellow men, and apparently from God. There was nothing earnest, enthusiastic, heroic, or chivalrous in his nature, and as little was there anything mean, grovelling, or ignoble. He was almost passionless."

"It were to be wished, that this noble philosopher would communicate more of his experiments to the world, as he makes many, and with great accuracy."

"I never charged or thought of charging Mr. Cavendish with having obtained from Mr. Watt's paper his knowledge of the composition of water, and having knowingly borrowed it, however suspicious a case Mr. Harcourt's publication may seem to make. Both those great men, in my opinion, made the discovery apart from each other, and ignorant each of the other's doctrine. Mr. Cavendish was a man of the strictest integrity, and the most perfect sense of justice. His feelings were very far inferior to his principles. He was singularly callous to the ordinary calls of humanity, as there exist positive proofs sufficient to satisfy the polemical writer upon whose paper ['Eloge de M. Cavendish'] I have been commenting if he has any mind to see them. Nor do they rest on my assertion, for I never had any intercourse with him except in society. But the pursuits of a philosopher and the life of a recluse, which had so entirely hardened his heart, had not in the least degree impaired his sense of justice; and my own belief is, that he as entirely supposed himself to have alone made the discovery in question, as Sir Isaac Newton believed himself to be the sole discoverer of the nature of light, and the theory of the solar system."

"He was the wealthiest of all scholars (savants) and probably also the most scholarly of all the wealthy."

"I think we must allow that dephlogisticated air is in reality nothing but dephlogisticated water, or water deprived of its phlogiston; or, in other words, that water consists of dephlogisticated air united to phlogiston; and that inflammable air is either pure phlogiston, as Dr. Priestley and Mr. Kirwan suppose [and as Cavendish formerly supposed], or else water united to phlogiston; since, according to this supposition, these two substances united together form pure water. On the other hand, if the first explanation be true, we must suppose that dephlogisticated air consists of water united to a little and deprived of its phlogiston; but still the nitrous acid in it must make only a very small part of the whole, as it is found, that the phlogisticated air, which it is converted into, is very small in comparison of the dephlogisticated air."

"By fixed air, I mean that particular species of factitious air, which is separated from alcaline substances by solution in s or by calcination and to which Dr. Black has given that name in his treatise on quicklime."

"By factitious air, I mean in general any kind of air which is contained any in other bodies in an unelastic state, and is produced from thence by art."

"Young people must break machines to learn how to use them; get another made!"

"Neutral salts, Cavendish's starting point... were... composed of s and other substances, mostly s, that were without acidity. Not long before, all of the known neutral salts could be listed in a table of twelve... the possible combinations of the four known acidic salts and the three known alkaline salts. Just as Cavendish began to work... the tidy, managable table... was fast expanding. The empirical field of salts was recognized as highly undeveloped..."

"At the time Cavendish made his study of compounds, chemists still had not been able to "determine what it /arsenic/ really is, or to what class of bodies it belongs." ...[A]rsenic behaves as a in some states, and like a salt in other states. ...[L]ike every metallic , arsenic [could be] changed into a metallic form... "regulus of arsenic"... [by combining] with "phlogiston." ...[L]ike salts, arsenic is soluble in water. ...[N]either ic nor ne, yet Macquer claimed, behaving as if it were an acid. ...In other ways ...arsenic differs from other... calces: it is volatile with a strong smell, it is fusible, it unites with metals and s—the difference that Macquer and Cavendish picked up on—it decomposes nitre when distilled with it. From the standpoint of affinities... arsenic is exceptional too."

"Hence then—at all events in this country—scientific men were startled when Arago... published in 1838 the eloge of Watt, which he had read as far back as Dec., 1834, in which he charged Cavendish with deceit and plagiarism, inasmuch as he was said to have learned the composition of water, not by experiments of his own, but by obtaining sight of a letter from Watt to Priestley. The battle now fairly began..."

"As Lavoisier was from the first accused by the English chemists of having acted unfairly toward them, and as indeed his own claim only dates back to June 25, 1783, he may be dismissed from further consideration; and during the lives of the English claimants there were no public complaints on either side, although Watt, in private letters to his friends, hinted at Cavendish's incapacity and unfairness."

"The general conclusion to which Cavendish came was, in his own words, "that water consists of dephlogisticated air united with phlogiston," and as dephlogisticated air was his term for oxygen, and phlogiston his term for , this statement corresponds to the modern view of the nature of water introduced by Lavoisier."

"Cavendish's experiments consisted in exploding, in various proportions, mixtures of and atmospheric air, and of hydrogen and oxygen, and finding as the result a liquid which proved to be pure water. (Priestley and his friend, Mr. [John] Warltire, had made similar experiments, and had noticed the deposition of moisture that followed the explosion, but failed to recognize it anything but the condensation of aqueous vapors in the gases.)"

"[T]his delay between the discovery and the date of publication caused his claims to one of the most marvelous discoveries the world ever saw, to be contested by... James Watt and Lavoisier."

"In the interval (June, 1783) his friend, Dr. Blagden, visited Paris, and on the authority of Cavendish, gave an account of the experiments proving the composition of water to Lavoisier..."

"In the year 1781, Cavendish made a long and careful series of experiments... not published till Jan., 1784, when his celebrated... Experiments on Air was read to the royal society."

"[A] prolonged and acrimonious controversy... was for many years carried on and is... hardly... settled regarding the respective claims of different philosophers to be the true discoverer of the nature and composition of water."