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

I try to spend my time on areas that I think are important for the future, and where I think I can add value.

Your brand is what people say about you when you're not in the room

Lowering prices is easy. Being able to afford to lower prices is hard.

Entrepreneurs must be willing to be misunderstood for long periods of time.

I think technology advanced faster than anticipated. In that whirlwind, a lot of companies didn't survive. The reason we have done well is because, even in that whirlwind, we kept heads-down focused on the customers. All the metrics that we can track about customers have improved every year.

People forget already how much utility they get out of the Internet - how much utility they get out of e-mail, how much utility they get out of even simple things like brochureware online.