To be happy, one must have a good stomach and a bad heart.

I have lived one hundred years; and I die with the consolation of never having thrown the slightest ridicule upon the smallest virtue.

I feel nothing, apart from a certain difficulty in continuing to exist.

If I had my hand full of truth, I would take good care how I opened it.

Hardly anyone knows how much is gained by ignoring the future.

Since the princes take the Earth for their own, it's fair that the philosophers reserve the sky for themselves and rule there, but they should never permit the entry of others.

A philosopher will not believe what he sees because he is too busy speculating about what he does not see.