Education which is not modern share the fate of all organic things which are kept too long.

The motive of success is not enough.

The tragedy of the world is that those who are imaginative have but slight experience, and those who are experienced have feeble imaginations.

Seek simplicity, then distrust.

The result of teaching small parts of a large number of subjects is the passive reception of disconnected ideas, not illumed with any spark of vitality.

Life is the enjoyment of emotion, derived from the past and aimed at the future.

No science can be more secure than the unconscious metaphysics which tacitly it presupposes.