Building a mission and building a business go hand in hand. The primary thing that excites me is the mission. But we have always had a healthy understanding that we need to do both.
By giving people the power to share, we're making the world more transparent.
The main Facebook usage is so big. About 20 percent of the time people spend on their phone is on Facebook.
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.
The thing that's been really surprising about the evolution of Facebook is - I think then, and I think now - that if we didn't do this, someone else would have done it.
You get a reputation for stability if you are stable for years.