There are people who are really good managers, people who can manage a big organization, and then there are people who are very analytic or focused on strategy. Those two types don't usually tend to be in the same person. I would put myself much more in the latter camp.

Our goal is not to build a platform; it's to be cross all of them.

I think as a company, if you can get two things right--having a clear direction on what you are trying to do and bringing in great people who can execute on the stuff--then you can do pretty well.

Young people are just smarter.

The world is changing so quickly, with mobile stuff and different platforms emerging, that I think it's more likely that the biggest competitor for Facebook is someone that we haven't heard of. What that means for us is that we should just really stay focused on what we're doing.

We look for people who are passionate about something. In a way, it almost doesn’t matter what you’re passionate about. What we really look for when we’re interviewing people is what they’ve shown an initiative to do on their own.

Every application will be designed from the ground up to use real identity and friends.