Seek simplicity but distrust it.

True courage is not the brutal force of vulgar heroes, but the firm resolve of virtue and reason.

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

There is only one subject matter for education, and that is Life in all its manifestations

Algebra reverses the relative importance of the factors in ordinary language.

Religion is the reaction of human nature to its search for God.

In all education the main cause of failure is staleness.