Think big and don't listen to people who tell you it can't be done. Life's too short to think small.

Learn the art of the pitch and of messaging.

The key to having more time is doing less, and there are two paths to get there, both of which should be used together: (1) Define a short to-do list and (2) define a not-to-do list.

Having a size 9 foot is fantastic because almost all of the shoe companies do their prototyping in size 9, so if you visit a place like Nike headquarters, you can try every sort of wacky, out-there model.

Pacifists become militants. Freedom fighters become tyrants. Blessings become curses. Help becomes hindrance. More becomes less.

Massive elimination is the most important step and the most neglected step for entrepreneurs.

Language learning deserves special mention. It is, bar none, the best thing you can do to hone clear thinking.