The "Be good" concept also comes up when we design our products. We want them to have positive social effects.

The moments that we have with friends and family, the chances that we have to make a big difference in the world or even to make a small difference to the ones we love, all those wonderful chances that life gives us, life also takes away. It can happen fast and a whole lot sooner than you think.

Computing is kind of a mess. Your computer doesn't know where you are. It doesn't know what you're doing. It doesn't know what you know.

Especially in technology, we need revolutionary change, not incremental change.

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

We should be focusing on building things that do not exist.

Excellence matters, and technology advances so fast that the potential for improvement is tremendous. So, since becoming CEO again, I've pushed hard to increase our velocity, improve our execution, and focus on the big bets that will make a difference in the world.