It is hard to fail, but it is worse never to have tried to succeed.

He told me that when (Ralph Waldo) Emerson came to California, (Muir) tried to get him to come out and camp with him, for that was the only way in which to see at their best the majesty and charm of the Sierras, ... Theodore Roosevelt: An Autobiography.

When you play, play hard; when you work, don't play at all.

Far and away the best prize that life has to offer is the chance to work hard at work worth doing.

Don't hit at all if it is honorably possible to avoid hitting; but never hit soft.

The only man who never makes a mistake is the man who never does anything.