Solving specific problems is what drives me. I am not interested in having a career. I never have been.

It’s not cool. I think being a wealthy member of the establishment is the antithesis of cool. Being a countercultural revolutionary is cool. So to the extent that you’ve made a billion dollars, you’ve probably become uncool.

One of the difficulties in living the lifestyle I lead is that it is hard to get my friends in one place.

You want people using your product because it's a part of your life, then they can't stop using it.

If I were worried about my reputation, I wouldn't do anything with start-ups

I think Facebook's biggest problem is the glut of information that Facebook's power users are overwhelmed with.

There's definitely some sort of dissent brewing between labels, publishing companies and artists. A lot of it has to do with older licensing schemes.