To fall into a habit is to begin to cease to be.

Only in solitude do we find ourselves; and in finding ourselves, we find in ourselves all our brothers in solitude.

And killing time is perhaps the essence of comedy, just as the essence of tragedy is killing eternity.

Philosophy fulfills the need to create for ourselves a single and complete concept of the world and of life.

The only way to give finality to the world is to give it consciousness.

Life is doubt, and faith without doubt is nothing but death.

Sow the living part of yourselves in the furrow of life.