If you're not having doubt, you're not pushing the boundaries far enough.

When I encounter a problem - something that's not quite right with a product - I enjoy breaking it down in my mind and exploring possible alternative solutions: Why this? Why not that? I apply the latest in technology and design to reinvent that product and solve my frustrations.

We built the iPod in weeks. It had to be what I thought it was going to be because there wasnt time for endless refinements.

Learning by doing is the only way I know how to learn.

It's easy to solve a problem that everyone sees, but it's hard to solve a problem that almost no one sees.

Over the next ten years, everything that has a cord is going to have data in it.

Learn by doing. Learn through experiences. And this goes back to Steve Jobs' thing - which is the way you open up your knowledge of the world is by discovering it and learning about it, not through books, but by being there.