“Greatness is not a function of circumstance. Greatness, it turns out, is largely a matter of conscious choice, and discipline.”

“Bruce ate a mouthful of eggs and meditated. 'I wonder how many of the great heroes of history would turn out to be a slow runner, if you ever investigated the circumstances.”

“People think I'm disciplined. It is not discipline. It is devotion. There is a great difference.”

“Keynes was a great economist. In every discipline, progress comes from people who make hypotheses, most of which turn out to be wrong, but all of which ultimately point to the right answer. Now Keynes, in The General Theory of Employment, Interest and Money,set forth a hypothesis which was a beautiful one, and it really altered the shape of economics. But it turned out that it was a wrong hypothesis. That doesn't mean that he wasn't a great man!”

“A culture of discipline is not a principle of business, it is a principle of greatness.”

“Many of life's circumstances are created by three basic choices: the disciplines you choose to keep, the people you choose to be with; and, the laws you choose to obey”