Stay hungry, stay foolish.

The important point is to not just follow your passion but something larger than yourself.

But innovation comes from people meeting up in the hallways or calling each other at 10:30 at night with a new idea, or because they realized something that shoots holes in how we've been thinking about a problem.

You've probably had somebody punch you in the stomach and it knocks the wind of you and you can't breathe. That's how I felt.

When you start looking at a problem and it seems really simple, you don't really understand the complexity of the problem. Then you get into the problem, and you see that it's really complicated, and you come up with all these convoluted solutions. That's sort of the middle, and that's where most people stop... But the really great person will keep on going and find the key, the underlying principle of the problem - and come up with an elegant, really beautiful solution that works.

We made the buttons on the screen look so good you'll want to lick them.

The lunatics have taken over the asylum and we can do anything we want.