The worship of God is not a rule of safety - it is an adventure of the spirit, a flight after the unattainable.

Without adventure civilization is in full decay. ... The great fact [is] that in their day the great achievements of the past were the adventures of the past.

The antithesis between a technical and a liberal education is fallacious. There can be no adequate technical education which is not liberal, and no liberal education which is not technical.

Religion will not regain its old power until it can face change in the same spirit as does science.

In every age of well-marked transition, there is the pattern of habitual dumb practice and emotion which is passing and there is oncoming a new complex of habit.

We must produce a great age, or see the collapse of the upward striving of our race.

Everyone is a philosopher. Not everyone is good at it.