“In his heart every man knows quite well that, being unique, he will be in the world only once and that no imaginable chance will for a second time gather together into a unity so strangely variegated an assortment as he is: he knows it but he hides it like a bad conscience—why? From fear of his neighbor, who demands conventionality and cloaks himself with it. But what is it that constrains the individual to fear his neighbor, to think and act like a member of a herd, and to have no joy in himself? Modesty, perhaps, in a few rare cases. With the great majority it is indolence, inertia. … Men are even lazier than they are timid, and fear most of all the inconveniences with which unconditional honesty and nakedness would burden them. Artists alone hate this sluggish promenading in borrowed fashions and appropriated opinions and they reveal everyone’s secret bad conscience, the law that every man is a unique miracle.”

IV, 18
Source: Meditations (c. 121–180 AD), Book IV

Pupils at Sais (1799)
Context: The waking man looks without fear at this offspring of his lawless Imagination; for he knows that they are but vain Spectres of his weakness. He feels himself lord of the world: his me hovers victorious over the Abyss; and will through Eternities hover aloft above that endless Vicissitude. Harmony is what his spirit strives to promulgate, to extend. He will even to infinitude grow more and more harmonious with himself and with his Creation; and at every step behold the all-efficiency of a high moral Order in the Universe, and what is purest of his Me come forth into brighter and brighter clearness. This significance of the World is Reason; for her sake is the World here; and when it is grown to be the arena of a childlike, expanding Reason, it will one day become the divine Image of her Activity, the scene of a genuine Church. Till then let man honour Nature as the Emblem of his own Spirit; the Emblem ennobling itself, along with him, to unlimited degrees. Let him, therefore, who would arrive at knowledge of Nature, train his moral sense, let him act and conceive in accordance with the noble Essence of his Soul; and as if of herself Nature will become open to him. Moral Action is that great and only Experiment, in which all riddles of the most manifold appearances explain themselves. Whoso understands it, and in rigid sequence of Thought can lay it open, is forever master of Nature.

"Man's Place in the Animal World" (1869)

Malheureux qui craint de rentrer
Dans la retraite de son âme!
Le coeur qui cherche a s'ignorer
Redoute un censeur qui le blâme.
Les Quatre saisons, ou les Géorgiques françoises, poëme (1763), Chant IV.
Translation reported in Harbottle's Dictionary of quotations French and Italian (1904), p. 154.

Source: War and Peace

"Ballad of the Double-Soul"
The Certain Hour (1916)
Context: In the beginning the Gods made man, and fashioned the sky and the sea,
And the earth's fair face for man's dwelling-place, and this was the Gods' decree: — "Lo, We have given to man five wits: he discerneth folly and sin;
He is swift to deride all the world outside, and blind to the world within:
So that man may make sport and amuse Us, in battling for phrases or pelf,
Now that each may know what forebodeth woe to his neighbor, and not to himself."

Pt. I, ch. 9
Source: Anna Karenina (1875–1877; 1878)

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 277.

Source: The Roving Mind (1983), Ch. 25
Context: How often people speak of art and science as though they were two entirely different things, with no interconnection. An artist is emotional, they think, and uses only his intuition; he sees all at once and has no need of reason. A scientist is cold, they think, and uses only his reason; he argues carefully step by step, and needs no imagination. That is all wrong. The true artist is quite rational as well as imaginative and knows what he is doing; if he does not, his art suffers. The true scientist is quite imaginative as well as rational, and sometimes leaps to solutions where reason can follow only slowly; if he does not, his science suffers.