For me, privacy and security are really important. We think about it in terms of both: You can't have privacy without security.

If you say you want to automate cars and save people's lives, the skills you need for that aren't taught in any particular discipline. I know - I was interested in working on automating cars when I was a Ph.D. student in 1995.

You never lose a dream, it just incubates as a hobby.

If you can run the company a bit more collaboratively, you get a better result, because you have more bandwidth and checking and balancing going on.

The ultimate search engine... would understand exactly what you mean and give back exactly what you want.

My job as a leader is to make sure everybody in the company has great opportunities, and that they feel they're having a meaningful impact and are contributing to the good of society. As a world, we're doing a better job of that. My goal is for Google to lead, not follow that.

We don't have as many managers as we should, but we would rather have too few than too many.