The people who built Silicon Valley were engineers. They learned business, they learned a lot of different things, but they had a real belief that humans, if they worked hard with other creative, smart people, could solve most of humankind's problems. I believe that very much.

It's very simple: The more successful you are, the more you'll earn. But if you're not successful, you will not earn a dime.

I'm convinced that about half of what separates successful entrepreneurs from the non-successful ones is pure perseverance.

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.

If you keep your eye on the profit, you’re going to skimp on the product. But if you focus on making really great products, then the profits will follow.

Don't be trapped by dogma — which is living with the results of other people's thinking.

To have your whole music library with you at all times is a quantum leap in listening to music. How do we possibly do this?