I sat at the foot of a huge tree, a statue of the night, and tried to make an inventory of all I had seen, heard, smelled, and felt: dizziness, horror, stupor, astonishment, joy, enthusiasm, nausea, inescapable attraction. What had attracted me? It was difficult to say: Human kind cannot bear much reality.

In order to increase his pleasures, man has intentionally added to the number and pressure of his needs, which in their original state were not much more difficult to satisfy than those of the brute. Hence luxury in all its forms; delicate food, the use of tobacco and opium, spirituous liquors, fine clothes, and the thousand and one things that he considers necessary to his existence.

Will is wish, and liberty is power.

Persuasion is achieved by the speaker's personal character when the speech is so spoken as to make us think him credible. We believe good men more fully and more readily than others: this is true generally whatever the question is, and absolutely true where exact certainty is impossible and opinions are divided.

Genetically influenced behavior is not necessarily good and not necessarily unchangeable. Explanations of bad behavior that appeal to genes do not absolve a person any more than do explanations that appeal to upbringing.

The human heart has a tiresome tendency to label as fate only what crushes it. But happiness likewise, in its way, is without reason, since it is inevitable.