Science is the most intimate school of resignation and humility, for it teaches us to bow before the seemingly most insignificant of facts.

Cure yourself of the inclination to bother about how you look to other people. Be concerned only . . . with the idea God has of you.

The will, the will not ever to die, the refusal to resign oneself to death, ceaselessly builds the house of life while the keen blasts and icy winds of reason unceasingly batter at the structure and beat it down.

My aim is to agitate and disturb people. I'm not selling bread; I'm selling yeast.

To believe in God is to yearn for His existence and, furthermore, it is to act as if He did exist.

What is certain is that for thinking believers to-day, faith is, before all and above all, wishing that God may exist.

Fear is the start of wisdom.