At Facebook, we're inspired by technologies that have revolutionized how people spread and consume information. We often talk about inventions like the printing press and the television - by simply making communication more efficient, they led to a complete transformation of many important parts of society. They gave more people a voice. They encouraged progress. They changed the way society was organized. They brought us closer together.

Security is, I would say, our top priority because for all the exciting things you will be able to do with computers - organizing your lives, staying in touch with people, being creative - if we don't solve these security problems, then people will hold back.

Everybody in this country should learn how to program a computer, because it teaches you how to think.

We have always tried to concentrate on the long term, and to place bets on technology we believe will have a significant impact over time.

If you look at things like Google Now also. Maybe you want to just have [a question] answered for you before you ask it.

It's important to distinguish between "worry versus harm" when it came to privacy online.