My interactions with Sorkin were agonisingly weird. He is by far the weirdest person I have ever met. I had dinner with him and a few hours before I got an e-mail from his assistant saying, 'Sean, this does not need to be a long conversation. Aaron is only going to use it to win your trust.'

Running a start-up is like eating glass. You just start to like the taste of your own blood.

Spotify is returning a huge amount of money. We'll overtake iTunes in terms of what we bring to the record industry in under two years.

I lived on couches for something like six months. I had no home. I was totally broke. I would stay at a friend's house for two weeks, then move because I didn't want to become this permanent mooch.

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.

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.

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.