You have to be smart. The easy days are over.

When your own mind tells you to quit, you must ignore your negative thoughts and press on.

A good leader is always looking for people smarter and more experienced than they are. If you are the smartest one in the room, then you are stupid.

A truly intelligent person is the dumbest person on the team he is leading.

Self-discipline is the No. 1 delineating factor between the rich, the middle class and the poor.

Often, in the real world, it's not the smart that get ahead but the bold.

Criticism is easier to take when you realize that the only people who aren’t criticized are those who don’t take risks.