In a country of such recent civilization as ours, whose almost limitless treasures of material wealth invite the risks of capital and the industry of labor, it is but natural that material interests should absorb the attention of the people to a degree elsewhere unknown.

The educator must believe in the potential power of his pupil, and he must employ all his art in seeking to bring his pupil to experience this power.

War is not the continuation of politics with different means, it is the greatest mass-crime perpetrated on the community of man.

Everything can always be different!

Men of genius are admired, men of wealth are envied, men of power are feared; but only men of character are trusted.

Exaggerated sensitiveness is an expression of the feeling of inferiority.

In the company of friends, writers can discuss their books, economists the state of the economy, lawyers their latest cases, and businessmen their latest acquisitions, but mathematicians cannot discuss their mathematics at all. And the more profound their work, the less understandable it is.