What Facebook stands for in the world is giving people a voice and spreading ideas and rationalism.

No one has done a study on this, as far as I can tell, but I think Facebook might be the first place where a large number of people have come out. We didn't create that - society was generally ready for that. I think this is just part of the general trend that we talked about, about society being more open, and I think that's good.

I think video is a mega trend, almost as big as mobile.

I think that people just have this core desire to express who they are. And I think that's always existed.

The US government should be the champion for the internet, not a threat. They need to be much more transparent about what they're doing, or otherwise people will believe the worst.

We used to write this down by saying, 'move fast and break things.' And the idea was, unless you are breaking some stuff you are not moving fast enough. I think there's probably something in that for other entrepreneurs to learn which is that making mistakes is okay. At the end of the day, the goal of building something is to build something, not to not make mistakes.

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