Optimism is the content of small men in high places.

Whenever you're in conflict with someone, there is one factor that can make the difference between damaging your relationship and deepening it. That factor is attitude.

If you want the rainbow, you've got to put up with the rain.

To establish true self-esteem, we must concentrate on our successes and forget about the failures and the negatives in our lives.

When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than my talent for absorbing positive knowledge.

Four steps to achievement: Plan purposefully. Prepare prayerfully. Proceed positively. Pursue persistently.

The more light you allow within you, the brighter the world you live in will be.

What though strength fails? Boldness is certain to win praise. In mighty enterprises, it is enough to have had the determination.

Men show their characters in nothing more clearly than in what they think laughable.

I frame no hypotheses; for whatever is not deduced from the phenomena is to be called an hypothesis; and hypotheses, whether metaphysical or physical, whether of occult qualities or mechanical, have no place in experimental philosophy.

There is as much greatness of mind in acknowledging a good turn, as in doing it.

There is nothing more frightful than ignorance in action.

In this age, the man who dares to think for himself and to act independently does a service to his race.

Drag your thoughts away from your troubles… by the ears, by the heels, or any other way you can manage it.