Every single person I know who is successful at what they do is successful because they love doing it.

Cannibals prefer those who have no spines.

A bad workman blames his tools.

Money and success don’t change people; they merely amplify what is already there.

Imagination is more important than knowledge.

In all things that you do, consider the end.

One of the huge mistakes people make is that they try to force an interest on themselves. You don’t choose your passions; your passions choose you.

Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.

If you’re not making mistakes, then you’re not making decisions.

The art of leadership is saying no, not yes. It is very easy to say yes.

I never perfected an invention that I did not think about in terms of the service it might give others… I find out what the world needs, then I proceed to invent.

My number one piece of advice is: you should learn how to program.

In all things that you do, consider the end.

Most great people have attained their greatest success just one step beyond their greatest failure