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.

It would be incredibly presumptuous and self-serving of me to believe that Facebook was the end of history. The only way it could possibly be the end of history is if it becomes some sort of artificial super intelligence that takes over the world.

At the end of the day, money is just a proxy for votes. That is what makes politics so vulnerable to social media.

The leader of a company needs to have a decision tree in his head - if this happens, we go this way, but if it winds up like that, then we go this other way.

There's definitely some sort of dissent brewing between record labels, publishing companies and artists [about the compensation they get from streaming services] Spotify is returning a HUGE amount of money [to the record labels]. If we continue growing at our current rate in terms of subscriptions and downloads, we'll overtake iTunes in terms of contributions to the recorded music business in under two years.

You have got to be willing to be poor as an entrepreneur.

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