"I think if you're going to be an inventor, you have to be willing to be a little bit crazy."

"I constantly remind our employees to be afraid, to wake up every morning terrified. Not of our competitors, but of our customers."

"I think it's important to be very focused on what you're doing. Don't try to do too many things at once."

"We've had three big ideas at Amazon that we've stuck with for 18 years, and they're the reason we're successful: Put the customer first. Invent. And be patient."

"You can have a good idea, but if you don't execute it well, it won't be successful."