A man is never more serious than when he praise himself.

To write brashly about some things, it is almost necessary not to know much about them.

Everyone should study at least enough philosophy and belles-lettres to make his sexual experience more delectable.

The thoughts written on the walls of madhouses by their inmates might be worth publicizing.

To do the opposite of something is also a form of imitation, namely an imitation of its opposite.

As nations improve, so do their gods.

A clever child brought up with a foolish one can itself become foolish. Man is so perfectible and corruptible he can become a fool through good sense.