The wisdom of the wise is an uncommon degree of common sense.

In praising science, it does not follow that we must adopt the very poor philosophies which scientific men have constructed. In philosophy they have much more to learn than to teach.

The world belongs to those who think and act with it, who keep a finger on its pulse.

Civilization is being poisoned by its own waste products.

Worry is interest paid on trouble before it comes due.

Consciousness is a phase of mental life which arises in connection with the formation of new habits. When habit is formed, consciousness only interferes to spoil our performance.

We tolerate shapes in human beings that would horrify us if we saw them in a horse.