The human brain is a complex organ with the wonderful power of enabling man to find reasons for continuing to believe whatever it is that he wants to believe.

In every province, the chief occupations, in order of importance, are lovemaking, malicious gossip, and talking nonsense.

Doubt is not a pleasant condition, but certainty is absurd.

I believe that there never was a creator of a philosophical system who did not confess at the end of his life that he had wasted his time. It must be admitted that the inventors of the mechanical arts have been much more useful to men that the inventors of syllogisms. He who imagined a ship towers considerably above him who imagined innate ideas.

All the persecutors declare against each other mortal war, while the philosopher, oppressed by them all, contents himself with pitying them.

A woman can keep one secret the secret of her age.

The greatest consolation in life is to say what one thinks.