Optimism is important. You have to be a little silly about the goals you are going to set. There is a phrase I learned in college called, 'having a healthy disregard for the impossible.' That is a really good phrase. You should try to do things that most people would not do.

It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.

If we were motivated by money, we would have sold the company a long time ago and ended up on a beach.

As devices multiply and usage changes, many users coming online today may never use a desktop machine, it becomes more and more important to ensure that people can access all of their stuff anywhere.

Being negative is not how we make progress, and the most important things are not zero sum.

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

We really care about our brand. We really want it to stand for high quality. We want people to be excited about it, for it to be fun.