One of the greatest of all principles is that men can do what they think they can do.

You can make yourself enthusiastic by affirming enthusiasm and by thinking, talking, acting enthusiastic.

Drop the idea that you are Atlas carrying the world on your shoulders. The world would go on even without you. Don't take yourself so seriously.

The greatest measure of a human being isn't how he handles himself when things are going well, but how he handles himself when things are going badly, when defeat comes.

Every individual forms his own estimate of himself and that basic estimate goes far toward determining what he becomes.

The world in which you live is not primarily determined by outward conditions and circumstances but by the thoughts that habitually occupy your mind.

The more you lose yourself in something bigger than yourself, the more energy you will have.