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

You actually don't want people thinking your product is cool, because then you're a fad.

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

Your biggest challenge as an entrepreneur is not concealing your idea from others or keeping your idea a secret, it is actually convincing people that you're not crazy and that you can pull this off.

Ever since Napster I've dreamt of building a product similar to Spotify.

Gray hats are the ones who think they're doing good, but they're not. You learn that when the FBI shows up on your doorstep.

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