The thing that we are trying to do at Facebook is just help people connect and communicate more efficiently.

In a world that's changing so quickly, you're guaranteed to fail if you don't take any risks.

I like to pride myself on thinking pretty long term, but not that long term.

The biggest risk is not taking any risk... In a world that changing really quickly, the only strategy that is guaranteed to fail is not taking risks.

If a product costs $10,000 or $20,000 it has limited use. This is what the first computers cost! Only when almost everyone is able to afford it will it be a real thing.

Why are most chess masters under 30?

Look at the way celebrities and politicians are using Facebook already. When Ashton Kutcher posts a video, he gets hundreds of pieces of feedback. Maybe he doesn't have time to read them all or respond to them all, but he's getting good feedback and getting a good sense of how people are thinking about that and maybe can respond to some of it.