A wise man loses nothing, if he but save himself.

There is, nevertheless, a certain respect and a general duty of humanity that ties us, not only to beasts that have life and sense, but even to trees and plants.

Since we cannot match it let us take our revenge by abusing it.

To philosophize is to doubt.

Most men are rich in borrowed sufficiency: a man may very well say a good thing, give a good answer, cite a good sentence, without at all seeing the force of either the one or the other.

No man is so exquisitely honest or upright in living, but that ten times in his life he might not lawfully be hanged.

Every one is well or ill at ease, according as he finds himself! not he whom the world believes, but he who believes himself to be so, is content; and in him alone belief gives itself being and reality