"The true, prescriptive artist strives after artistic truth; the lawless artist, following blind instinct, after an appearance of naturalness. The one leads to the highest peaks of art, the other to its lowest depths."

"In limitations he first shows himself the master, And the law can only bring us freedom."

"But among all the discoveries and corrections probably none has resulted in a deeper influence on the human spirit than the doctrine of Copernicus…. Possibly mankind has never been demanded to do more, for considering all that went up in smoke as a result of realizing this change: a second Paradise, a world of innocence, poetry and piety: the witness of the senses, the conviction of a poetical and religious faith. No wonder his contemporaries did not wish to let all this go and offered every possible resistance to a doctrine which in its converts authorized and demanded a freedom of view and greatness of thought so far unknown indeed not even dreamed of."

"One never goes so far as when one doesn't know where one is going."

"I have often felt a bitter sorrow at the thought of the German people, which is so estimable in the individual and so wretched in the generality. A comparison of the German people with other peoples arouses a painful feeling, which I try to overcome in every possible way."

"Von andern Seiten her vernahm ich ähnliche Klänge, nirgends wollte man zugeben, daß Wissenschaft und Poesie vereinbar seien. Man vergaß, daß Wissenschaft sich aus Poesie entwickelt habe, man bedachte nicht, daß, nach einem Umschwung von Zeiten, beide sich wieder freundlich, zu beiderseitigem Vorteil, auf höherer Stelle, gar wohl wieder begegnen könnten."

"Patriotism ruins history."

"Who wants to understand the poem Must go to the land of poetry; Who wishes to understand the poet Must go to the poet's land."

"For I have been a man, and that means to have been a fighter."

"Should I not be proud, when for twenty years I have had to admit to myself that the great Newton and all the mathematicians and noble calculators along with him were involved in a decisive error with respect to the doctrine of color, and that I among millions was the only one who knew what was right in this great subject of nature?"

"All poetry is supposed to be instructive but in an unnoticeable manner; it is supposed to make us aware of what it would be valuable to instruct ourselves in; we must deduce the lesson on our own, just as with life."

"I am more and more convinced that poetry is the universal possession of mankind, revealing itself everywhere and at all times in hundreds and hundreds of men. ... I therefore like to look about me in foreign nations, and advise everyone to do the same. National literature is now a rather unmeaning term; the epoch of world literature is at hand, and everyone must strive to hasten its approach."

"One must be something in order to do something."

"I have found a paper of mine among some others in which I call architecture 'petrified music.' Really there is something in this; the tone of mind produced by architecture approaches the effect of music."

"If I work incessantly to the last, nature owes me another form of existence when the present one collapses."

"The artist may be well advised to keep his work to himself till it is completed, because no one can readily help him or advise him with it...but the scientist is wiser not to withhold a single finding or a single conjecture from publicity."

"Willst du immer weiterschweifen? Sieh, das Gute liegt so nah. Lerne nur das Glück ergreifen, denn das Glück ist immer da."

"O'er all the hilltops Is quiet now, In all the treetops Hearest thou Hardly a breath; The birds are asleep in the trees: Wait; soon like these Thou too shalt rest."

"Amerika, du hast es besser—als unser Kontinent, der alte."

"Who is the happiest of men? He who values the merits of others, And in their pleasure takes joy, even as though 'twere his own. Not in the morning alone, not only at mid-day he charmeth; Even at setting, the sun is still the same glorious planet."

"And now the sagacious reader, who is capable of reading into these lines what does not stand written in them, but is nevertheless implied, will be able to form some conception of the serious feelings with which I then set foot in Emmendingen."

"Nun aber wird der einsichtige Leser, welcher fähig ist, zwischen diese Zeilen hineinzulesen, was nicht geschrieben steht, aber angedeutet ist, sich eine Ahnung der ernsten Gefühle gewinnen, mit welchen ich damals Emmendingen betrat. www.zeno.org"

"A burgher may acquire merit; by excessive efforts he may even educate his mind; but his personal qualities are lost, or worse than lost, let him struggle as he will. Since the nobleman, frequenting the society of the most polished, is compelled to give himself a polished manner; since this manner, neither door nor gate being shut against him, grows at last an unconstrained one; since, in court or camp, his figure, his person, are a part of his possessions, and it may be the most necessary part, — he has reason enough to put some value on them, and to show that he puts some."