God, conquered, will become Satan; Satan, conquering, will become God. May the fates spare me this terrible lot; I love the Hell which formed my genius. I love the Earth where I have done some good, if it be possible to do any good in this fearful world where beings live but by rapine.

In order that knowledge be properly digested it must have been swallowed with a good appetite.

It is the certainty that they possess the truth that makes men cruel.

Custom alone regulates morals.

The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.

Only men who are not interested in women are interested in women's clothes. Men who like women never notice what they wear.

Of all the sexual aberrations, chastity is the strangest.