I strongly believe that missionaries make better products. They care more. For a missionary, it's not just about the business. There has to be a business, and the business has to make sense, but that's not why you do it. You do it because you have something meaningful that motivates you.

If you double the number of experiments you do per year you're going to double your inventiveness.

One of the things that gets me up in the morning is knowing that customer expectations are always rising, and I find that very exciting.

What's dangerous is not to evolve.

Our vision is every book ever printed in any language [fetched and viewable on our eBook Kindle device] in under 60 seconds.

If you're truly obsessed over customers, it'll cover a lot of errors.

E-mail has some magical ability to turn off the politeness gene in a human being.