Religion is what the individual does with his own solitariness.

The study of mathematics is apt to commence in disappointment.

The fact of the religious vision, and its history of persistent expansion, is our one ground for optimism. Apart from it, human life is a flash of occasional enjoyments lighting up a mass of pain and misery, a bagatelle of transient experience.

The absolute pacifist is a bad citizen; times come when force must be used to uphold right, justice and ideals.

The foundations of the world are to be found, not in the cognitive experience of conscious thought, but in the aesthetic experience of everyday life.

There is a tradition of opposition between adherents of induction and of deduction. In my view it would be just as sensible for the two ends of a worm to quarrel.

Speak out in acts; the time for words has passed, and only deeds will suffice.