An idealist believes the short run doesn't count. A cynic believes the long run doesn't matter. A realist believes that what is done or left undone in the short run determines the long run.

Honesty consists of the unwillingness to lie to others; maturity, which is equally hard to attain, consists of the unwillingness to lie to oneself.

A truly successful person knows how to overcome the past, use the present, and prepare for the future-but unless we can first surmount the past, we cannot effectively cope with either the present or the future.

Ancient boundaries are meaningless, except for political purposes; old divisions of clan and tribe are sentimental remnants of the pre-atomic age; neither creed nor color nor place of origin is relevant to the realities of modern power to utterly seek and destroy.

Nothing is as easy to make as a promise this winter to do something next summer; this is how commencement speakers are caught.

By the time a man asks you for advice, he has generally made up his mind what he wants to do, and is looking for confirmation rather than counseling.

The greatest enemy of progress is not stagnation, but false progress.