A mistake is an event, the full benefit of which has not yet been turned to your advantage.

The first thing you do is teach the person to feel that the vision is very important and nearly impossible. That draws out the drive in the winner.

Profundity and originality are attributes of single, if not singular, minds.

If you dream of something worth doing and then simply go to work on it and don't think anything of personalities, or emotional conflicts, or of money, or of family distractions; it is amazing how quickly you get through those 5,000 steps.

There's a rule they don't teach you at the Harvard Business School. It is, if anything is worth doing, it's worth doing to excess.

The test of an invention is the power of an inventor to push it through in the face of staunch-not opposition, but indifference-in society.

We took on things which people might think would take a year or two. They weren't particularly hard. What was hard was believing they weren't hard.