One must know oneself. If this does not serve to discover truth, it at least serves as a rule of life and there is nothing better.

We must keep our thought secret, and judge everything by it, while talking like the people.

To ridicule philosophy is really to philosophize.

If I believe in God and life after death and you do not, and if there is no God, we both lose when we die. However, if there is a God, you still lose and I gain everything.

All the maxims have been written. It only remains to put them into practice.

Men never do evil so completely and cheerfully as when they do it from religious conviction.

Anyone who found the secret of rejoicing when things go well without being annoyed when they go badly would have found the point.