Having the capacity to lead is not enough. The leader must be willing to use it.

One comes to believe whatever one repeats to oneself sufficiently often, whether the statement be true of false. It comes to be the dominating thought in one's mind.

I firmly believe that any man's finest hour, the greatest fulfillment of all that he holds dear, is that moment when he has worked his heart out in a good cause and lies exhausted on the field of battle - victorious.

Unless you try to do something beyond what you have already mastered, you will never grow. Every job is a self portrait of the person who did it ... Autograph your work with excellence.

You've got to keep yourself in prime physical condition, because fatigue makes cowards of us all.

Gentlemen, we are going to relentlessly chase perfection, knowing full well we will not catch it.

We live in an age fit for heroes. No time has ever offered such perils or prizes... The test of this century will be whether man confuses the growth of wealth and power with the growth of spirit and character.