Boredom, not the will, is the mother of change. Necessity is the father.

When death comes too near, comedy and tragedy fall silent.

An imprudent enemy is less dangerous than an imprudent friend.

A neurotic can neither enjoy his illusions nor give them up.

The perfect pleasure: money is neither fattening nor immoral nor illegal.

Happiness is often hard-hearted.

I am interested in a hundred things, but only slightly.