Religion is the most widely debated and least agreed upon phenomenon of human history.

The perpetual danger which besets religion is that it may substitute gentility and aestheticism for prophetic insight and power.

Life is a continual alternation of rest and action, of the need of comfort and the need of power.

One can be coerced to church, but not to worship.

Persons who would never think of announcing boldly to the world, 'I am a scholar,' 'I am a great artist,' 'I am a beautiful woman,' nevertheless seem to think it wholly within the bounds of good taste to announce that they are Christians!

love is always in danger of being sentimentalized.

Nature, left to itself, defeats nature.