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

When you receive criticism from well-meaning people, it pays to ask, ‘Are they right?’ And if they are, you need to adapt what they’re doing. If they’re not right, if you really have conviction that they’re not right, you need to have that long-term willingness to be misunderstood. It’s a key part of invention.

If you think about the long term then you can really make good life decisions that you won’t regret later.

I told all of our original investors that they would lose their money for sure.

I think if people read more, that is a better world.

If you make customers unhappy in the physical world, they might each tell 6 friends. If you make customers unhappy on the Internet, they can each tell 6,000 friends.

If we can keep our competitors focused on us while we stay focused on the customer, ultimately we'll turn out all right.