I got my first computer in the 6th grade or so. As soon as I got it, I was interested in finding out how it worked and how the programs worked and then figuring out how to write programs at just deeper and deeper levels within the system.

Figuring out what the next big trend is tells us what we should focus on.

It wasn't until we got our first office in Palo Alto where things became more like a company. We never went into this wanting to build a company.

There are different ways to do innovation. You can plant a lot of seeds, not be committed to any particular one of them, but just see what grows. And this really isn't how we've approached this. We go mission-first, then focus on the pieces we need and go deep on them and be committed to them.

One of my big regrets is that Facebook hasn't had a major chance to shape the mobile operating system ecosystem.

The real story of Facebook is just that we've worked so hard for all this time. I mean, the real story is actually probably pretty boring, right? I mean, we just sat at our computers for six years and coded.