My vision when we started Google 15 years ago was that eventually you wouldn't have to have a search query at all. You'd just have information come to you as you needed it. And Google Glass is now, 15 years later, sort of the first form factor that I think can deliver that vision.

But the vast majority of books ever written are not accessible to anyone except the most tenacious researchers at premier academic libraries. Books written after 1923 quickly disappear into a literary black hole.

The name was supposed to be 'Googol,' which is the mathematical term for a 1 followed by 100 zeroes. It was before the Google spellchecker existed.

As we go forward, I hope we're going to continue to use technology to make really big differences in how people live and work.

In the future, search engines should be as useful as HAL in the movie 2001: A Space Odyssey-but hopefully they won't kill people.

People try new things all the time. By now, the people who succeed have to be very sophisticated.

When it’s too easy to get money, then you get a lot of noise mixed in with the real innovation and entrepreneurship. Tough times bring out the best parts of Silicon Valley.