Nothing is so contagious as enthusiasm.

The learned compute that seven hundred and seven millions of millions of vibrations have to penetrate the eye before the eye can distinguish the tints of a violet.

Reading without purpose is sauntering not exercise.

Books are but waste paper unless we spend in action the wisdom we get from thought.

Despair makes victims sometimes victors.

The more the merely human part of the poet remains a mystery, the more willing is the reverence given to his divine mission.

There is nothing so agonizing to the fine skin of vanity as the application of a rough truth.