Remorse turns us against ourselves.

Nearly all men are slaves for the same reason that the Spartans assigned for the servitude of the Persians -- lack of power to pronounce the syllable, "No." To be able to utter that word and live alone, are the only means to preserve one's freedom and one's character.

At the sight of what goes on in the world, the most misanthropic of men must end by being amused, and Heraclitus must die laughing.

Education must have two foundations --morality as a support for virtue, prudence as a defense for self against the vices of others. By letting the balance incline to the side of morality, you only make dupes or martyrs; by letting it incline to the other, you make calculating egoists.

Life is a malady in which sleep soothes us every sixteen hours; it is a palliation; death is the remedy.

A person of intellect without energy added to it, is a failure.

In the library of the world men have hitherto been ranged according to the form, and the binding; the time is coming when they will take rank and order according to their contents and intrinsic merits.