Anyone who in discussion relies upon authority uses, not his understanding, but rather his memory.

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

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?

Only he who attempts the absurd is capable of achieving the impossible.

Scholasticism, a concept which does not bear criticism, is a theological concept specifically designed to sustain faith in the immortality of the soul.

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 affliction of caring how you appear to others. Concern yourself only with how you appear before God, concern yourself only with the idea that God may have of you.