Facebook was a very big mission; it really knocked it out of the universe. It's pretty hard to focus on a small idea after that. You really have to be working on something that you believe will be of similar impact.

There are a lot of people building small ideas now. There's an idealization of being an entrepreneur, but the most important thing is to have a really great idea.

For most people, their wealth accrues slowly, and at any given point they say, 'Okay, I should kick up my standard of living because now I've earned slightly more wealth.' I went from the dorm room to having a billion dollars.

It was a precondition to leaving Facebook that I wasn't going to start something that was just about chasing money.

Operational risk is the risk of loss resulting from bank operational failures, such as rogue traders, fraudulent sales practices, and cyber risks. Operational risk capital is money or assets that banks have to hold to shield the economy from the consequences of these kinds of failures.

Money Changes Everything' is this terribly despairing, heartbreaking song.

I have come close to producing films. But generally by the time they hit the screen, there's about 50 people with producer credits, so what's the point. I usually find scripts I like with no money attached and take them to producers that I know and try to raise finance.

If one has been blessed or have been fortunate enough to have got much more than normal wealth, it is but natural that one expects a certain fiduciary responsibility in terms of how that wealth is applied, used and leveraged for purposes of society.