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.

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.

Solving big problems is easier than solving little problems.

We came up with the notion that not all web pages are created equal. People are – but not web pages.

Currently we don't have plans on conquering the world.

It's a romantic notion that you're going to have one brilliant idea and then everything is going to be great... but the execution and delivery are what's key.

When I was growing up, I always knew I'd be in the top of my class in math, and that gave me a lot of self-confidence.