Design is a funny word. Some people think design means how it looks. But of course, if you dig deeper, it's really how it works.

If you view computer designers as artists, they're really into more of an art form that can be mass-produced, like records, or like prints, than they are into fine arts. They want something where they can express themselves to a large number of people through their medium, and their medium is technology and manufacturing.

The engineering is long gone in most PC companies. In the consumer electronics companies, they don't understand the software parts of it. And so you really can't make the products that you can make at Apple anywhere else right now. Apple's the only company that has everything under one roof.

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

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.

That's been one of my mantras - focus and simplicity. Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple. But it's worth it in the end because once you get there, you can move mountains.

So [Polaroid's Dr. Edwin] Land, at 75, went off to spend the remainder of his life doing pure science, trying to crack the code of color vision. The man is a national treasure. I don't understand why people like that can't be held up as models: This is the most incredible thing to be - not an astronaut, not a football player - but this.