What had been the focus of my entire adult life was gone, and it was devastating. I didn't really know what to do for a few months. I felt that I had let the previous generation of entrepreneurs down. I was a very public failure.

Combine science and humanities.

Probably death is the best invention of life.

I'm sorry, it's true. Having children really changes your view on these things. We're born, we live for a brief instant, and we die. It's been happening for a long time. Technology is not changing it much - if at all.

The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.

Now, we are selling over 5 million songs a day now. Isn't that unbelievable? That's 58 songs every second of every minute of every hour of every day.

It's not like Windows users don't have any power. I think they are happy with Windows, and that's an incredibly depressing thought