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.

It's a mistake to predict the size of markets that are so new. This model has shown no signs of slowing down. So we are going to get as much of it as we possibly can, and when we get close to that we'll figure out other problems.

I'm able to bring business expertise but, more importantly, operating experience. The people here at Google are young. Every day there are lots of new challenges. I keep things focused. The speech I give everyday is: "This is what we do. Is what you are doing consistent with that, and does it change the world?"

I've never met a person who does not want a safer world, better medical care and education for their children, and peace with their neighbours. I just don't meet those people. What I meet, over and over again, as I travel around, is that the essential human condition is optimistic - in every one of these places.

The self driving car is not self-aware. It's just driving; it's not thinking.

I actually think most people don't want Google to answer their questions. They want Google to tell them what they should be doing next.

We don't have a traditional strategy process, planning process like you'd find in traditional technical companies. It allows Google to innovate very, very quickly, which I think is a real strength of the company.