Around 400 million people in the last year got a smartphone. If you think that’s a big deal, imagine the impact on that person in the developing world.

We know that Google Earth and Google Maps have had a tremendous impact on Google traffic, users, brand, adoption, and advertisers. We also know Google News, for example, which we don't monetize, has had a tremendous impact on searches and on query quality. We know those people search more. Because we've measured it.

The coach doesn't have to play the sport as well as you do. They have to watch you and get you to be your best.

A lot of the Google inventions came from engineers just screwing around with ideas. And then management would see them, and we'd say, 'Boy, that's interesting. Let's add some more engineers.'

In a world of asynchronous threats, it is too dangerous for there not to be some way to identify you. We need a [verified] name service for people. Governments will demand it.

We run the company by questions, not by answers.

We want to make sure the thing you're looking for is on Google 100 percent of the time.