Virtue is praised but hated. People run away from it for it is ice-cold and in this world you must keep your feet warm.

Bad company is as instructive as licentiousness. One makes up for the loss of one's innocence with the loss of one's prejudices.

All abstract sciences are nothing but the study of relations between signs.

Good music is very close to primitive language.

It is very important not to mistake hemlock for parsley, but to believe or not believe in God is not important at all.