"I think sometimes people think that the way you make progress is to take very small steps. I don't think that's how most progress happens."

"I'm a big believer in the power of many, many small things to add up to big things."

"The ultimate search engine would understand everything in the world."

"We want to make sure that we're always pushing the boundaries of what's possible."

"The only way you get people to work on these things is if they don't feel like they're being judged."