Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything - all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important.

We think the Mac will sell zillions, but we didn't build the Mac for anybody else. We built it for ourselves. We were the group of people who were going to judge whether it was great or not. We weren't going to go out and do market research. We just wanted to build the best thing we could build.

The iPod is not a new category. Music is not new. It's not a speculative market. It's a very, very large market. It's been around for thousands of years and will be around as long as humans exist.

Customers always want something new

For you to sleep well at night, the aesthetic, the quality, has to be carried all the way through.

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.

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.