Proof is never definitive, after all; one has to begin again with each new person.

Ce que je sais de la morale, c'est au football que je le dois. (I know of morality, it is football that I owe.)

All great deeds and all great thoughts have a ridiculous beginning.

A person I knew used to divide human beings into three categories: those who prefer to have nothing to hide rather than being obliged to lie, those who prefer lying to having nothing to hide, and finally those who like both lying and the hidden.

After all, every murderer when he kills runs the risk of the most dreadful of deaths, whereas those who kill him risk nothing except promotion.

To two men living the same number of years, the world always provides the same sum of experiences. It is up to us to be conscious of them.

Truth and freedom, having few lovers, are demanding mistresses.