Connecting the world is really important, and that is something that we want to do. That is why Facebook is here on this planet.

People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.

Facebook was not originally created to be a company. It was built to accomplish a social mission - to make the world more open and connected.

I mean, we've built a lot of products that we think are good, and will help people share photos and share videos and write messages to each other. But it's really all about how people are spreading Facebook around the world in all these different countries. And that's what's so amazing about the scale that it's at today.

The question isn't, 'What do we want to know about people?', It's, 'What do people want to tell about themselves?'

I look at Google and think they have a strong academic culture. Elegant solutions to complex problems.

What really motivates people at Facebook is building stuff that they're proud of.