Virtual Reality is going to be an important technology. I am pretty confident about this.

Mobile is a lot closer to TV than it is to desktop.

My friends are people who like building cool stuff. We always have this joke about people who want to just start companies without making something valuable. There's a lot of that in Silicon Valley.

We want Facebook to be one of the best places people can go to learn how to build stuff. If you want to build a company, nothing better than jumping in and trying to build one. But Facebook is also great for entrepreneurs/hackers. If people want to come for a few years and move on and build something great, that's something we're proud of.

It occurred to me that building a company was the best way to align a group of people towards building something great. And its really... it's a good organizational structure where you can really reward people. If they're building something that's good, you can you work with partners and reward them if the product that you're developing work well. It's a good way to get the best people involved to build something very good.

In the olden times, privacy was good. Today people want to share, people are more open.

If the original Facebook was the first five minutes [of a conversation] and the stream was the next 15, what I want to show you today is the rest-the next few hours of a deep engaging conversation.