There are a few other things that I built when I was at Harvard that were kind of smaller versions of Facebook. One such program was this program called Match. People could enter the different courses that they were taking, and see what other courses would be correlated with the courses they are taking.

If we want to have the biggest impact, the best way to do this is to make sure we always focus on solving the most important problems.

You grow more when you get more people's perspective.

When you think about it, there's no way to input things into a computer. It's all... the holes only go out, right? Like you can plug a keyboard or a mouse in but that's a trick because the computer thinks the inputs are outputs. That's a programmer trick, basically magic. The key to the future is to make holes that go in too.

Facebook is all about information and helping people share it.

I do everything on my phone as a lot of people do.

A guy who makes a new chair doesn't owe money to everyone who ever built a chair.