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

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

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.

I have a simple algorithm, which is, wherever you see paid researchers instead of grad students, that's not where you want to be doing research.

Big companies have always needed and cooperated in areas where it made sense.

As a precaution, we’re making machines extremely heavy with very tiny legs.

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.