For the first time we're allowing developers who don't work at Facebook to develop applications just as if they were. That's a big deal because it means that all developers have a new way of doing business if they choose to take advantage of it. There are whole companies that are forming whose only product is a Facebook Platform application.

There are social restrictions where someone could be suppressing someone else's freedom to express themselves.

If Facebook were a country, it would be the 8th most populated in the world, just ahead of Japan.

I actually remember very specifically the night that I launched Facebook at Harvard. I used to go out to get pizza with a friend who I did all my computer science homework with. And I remember talking to him and saying I am so happy we have this at Harvard because now our community can be connected but one day someone is going to build this for the world.

There are many machines throughout history that were built to do something better than a human can.

People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.

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.