The machine does not isolate man from the great problems of nature but plunges him more deeply into them.

Man is not imprisoned by habit. Great changes in him can be wrought by crisis - once that crisis can be recognized and understood.

The stupid believe that to be truthful is easy only the artist, the great artist, knows how difficult it is.

Self-confidence is the first requisite to great undertakings.

You cannot escape the results of your thoughts. Whatever your present environment may be, you will fall, remain or rise with your thoughts, your vision, your ideal. You will become as small as your controlling desire as great as your dominant aspiration.