I'm going to go do this crazy thing. I'm going to start this company selling books online.

Mediocre theoretical physicists make no progress. They spend all their time understanding other people's progress.

We watch our competitors, learn from them, see the things that they were doing for customers and copy those things as much as we can.

If there’s one reason we have done better than of our peers in the Internet space over the last six years, it is because we have focused like a laser on customer experience.

No, communication is terrible!

Our biggest cost is not power, or servers, or people. It's lack of utilization. It dominates all other costs.

The three most important things in retail are location, location, location. The three most important things for our consumer business are technology, technology, technology.