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

I mostly built stuff that I liked.

I literally coded Facebook in my dorm room and launched it from my dorm room. I rented a server for $85 a month, and I funded it by putting an ad on the side, and we've funded ever since by putting ads on the side.

This is our commitment to users and the people who use our service, is that Facebook's a free service. It's free now. It will always be free. We make money through having advertisements and things like that.

It used to be the case, like, you'd switch jobs, and then maybe you wouldn't keep in touch with all the people that you knew from that old job. Just because it was too hard. But one of the things that Facebook does is it makes it really easy to just stay in touch with all these people.

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.

All of my friends who have younger siblings who are going to college or high school - my number one piece of advice is: You should learn how to program.