Excellence matters, and technology advances so fast that the potential for improvement is tremendous. So, since becoming CEO again, I've pushed hard to increase our velocity, improve our execution, and focus on the big bets that will make a difference in the world.

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.

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.

We have always tried to concentrate on the long term, and to place bets on technology we believe will have a significant impact over time. It's hard to imagine now, but when we started Google most people thought search was a solved problem and that there was no money to be made apart from some banner advertising. We felt the exact opposite: that search quality was very poor, and that awesome user experiences would clearly make money.

If you're changing the world, you're working on important things. You're excited to get up in the morning.

If we are not trusted, we have no business.

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