The biggest risk is not taking any risk.

If Facebook were a country, it would be the 8th most populated in the world, just ahead of Japan.

We should have a society that measures progress not just by economic metrics like GDP, but by how many of us have a role we find the meaningful. We should explore ideas like universal basic income to make sure everyone has a cushion to try new ideas.

There are a few other things that I built when I was at Harvard that were kind of smaller versions of Facebook.

There have been misperceptions that we're trying to make all the information open on Facebook, and that's completely false. There are big buckets of information that we recommend that you share with only your friends privately. Then some of the more basic information, we recommend that that's visible to everyone.

There's a difference between being obsessed and being motivated.

Our work to improve privacy continues today.