My religion is to seek for truth in life and for life in truth, even knowing that I shall not find them while I live.

Yes, yes, I see it all! — an enormous social activity, a mighty civilization, a profuseness of science, of art, of industry, of morality, and afterwords, when we have filled the world with industrial marvels, with great factories, with roads, museums and libraries, we shall fall exhausted at the foot of it all, and it will subsist — for whom? Was man made for science or was science made for man?

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

Human beliefs, like all other natural growths, elude the barrier of systems.

Martyrs create faith, faith does not create martyrs.

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

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