In action a great heart is the chief qualification. In work, a great head.

The faculty for remembering is not diminished in proportion to what one has learnt, just as little as the number of moulds in which you cast sand lessens its capacity for being cast in new moulds.

A hedge between keeps friendship green.

To call the world God is not to explain it; it is only to enrich our language with a superfluous synonym.

For, after all, the foundation of our whole nature, and, therefore, of our happiness, is our physique, and the most essential factor in happiness is health, and, next in importance after health, the ability to maintain ourselves in independence and freedom from care.

The man who goes up in a balloon does not feel as if he were ascending; he only sees the earth sinking deeper below him.

That I could clamber to the frozen moon. And draw the ladder after me.