All the work I've done in my life will be obsolete by the time I'm fifty.

A lot of people in our industry haven't had very diverse experiences. So they don't have enough dots to connect, and they end up with very linear solutions without a broad perspective on the problem. The broader one's understanding of the human experience, the better design we will have.

Great engineers are a huge multiplier.

We want to reinvent the phone. What's the killer app? The killer app is making calls! It's amazing how hard it is to make calls on most phones. We want to let you use contacts like never before - sync your iPhone with your PC or mac.

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.

I'm convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance... Unless you have a lot of passion about this, you're not going to survive. You're going to give it up. So you've got to have an idea, or a problem or a wrong that you want to right that you're passionate about otherwise you're not going to have the perseverance to stick it through.

The system is that there is no system. That doesn't mean we don't have process. Apple is a very disciplined company, and we have great processes. But that's not what it's about. Process makes you more efficient ... 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. It's ad hoc meetings of six people called by someone who thinks he has figured out the coolest new thing ever and who wants to know what other people think of his idea.