Life is merely a fracas on an unmapped terrain, and the universe a geometry stricken with epilepsy.

The history of ideas is the history of the grudges of solitary men.

A sudden silence in the middle of a conversation suddenly brings us back to essentials: it reveals how dearly we must pay for the invention of speech.

If a man has not, by the time he is thirty, yielded to the fascination of every form of extremism—I don't know whether he is to be admired or scorned, regarded as a saint or a corpse.

Only optimists commit suicide, optimists who no longer succeed at being optimists. The others, having no reason to live, why would they have any to die?

To Live signifies to believe and hope - to lie and to lie to oneself.

Every thought should recall the ruin of a smile.