What is pity but the vice of kindness.

Think of God and not religion, of ecstasy and not mysticism. The difference between the theoretician of faith and the believer is as great as between the psychiatrist and the psychotic.

The Art of Love: knowing how to combine the temperament of a vampire with the discretion of an anemone.

Tyrants are always assassinated too late. That is their great excuse.

Our works, whatever they may be, derive from our incapacity to kill or to kill ourselves.

As long as one believes in philosophy, one is healthy; sickness begins when one starts to think.

I live only because it is in my power to die when I choose to: without the idea of suicide, I'd have killed myself right away.