You could probably go all the way back to the first books. I bet people said 'why should you read when you could talk to other people?' The point of reading is that you get to deeply immerse yourself in a person's perspective. Right? Same thing with newspapers or phones or TVs. Soon it will be VR, I bet.

The most important thing is to keep your team as small as possible.

When you give people ability to stay connected with all the people they care about, and you make it so they can express new things about themselves or in communication with other people who they care about, then you just open up new possibilities. You make it so people can stay connected in ways that they couldn't before.

Our goal is not to build a platform; it's to be cross all of them.

And connected is helping people stay in touch and maintain empathy for each other, and bandwidth.

We want Facebook to be one of the best places people can go to learn how to build stuff.

I started the site when I was 19. I didn't know much about business back then.