Only when there are things a man will not do is he capable of doing great things.

Let men decide firmly what they will not do, and they will be free to do vigorously what they ought to do

The great man is he who does not lose his child's-heart.

Men must know their limitations.

He who attends to his greater self becomes a great man, and he who attends to his smaller self becomes a small man.

Let men decide firmly what they will not do, and they will be free to do vigorously what they ought to do.