Mental toughness is essential to success.

Character is the direct result of mental attitude. I believe that character is higher than the intellect. I believe that leadership is in sacrifice, in self-denial, in humility and in the perfectly disciplined will. This is the distinction between great and little men.

The spirit, the will to win, and the will to excel are the things that endure. These qualities are so much more important than the events that occur.

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

There's no such thing as Perfection. But, in striving for perfection, we can achieve excellence.

Hard work is the price we must pay for success

There is only one kind of discipline, and that is the perfect discipline. As a leader, you must enforce and maintain that discipline; otherwise, you will fail at your job.