If you can't tolerate critics, don't do anything new or interesting.

There are two ways to extend a business. Take inventory of what you're good at and extend out from your skills. Or determine what your customers need and work backward, even if it requires learning new skills. Kindle is an example of working backward.

What we want to be is something completely new. There is no physical analog for what Amazon.com is becoming.

Because, you know, resilience - if you think of it in terms of the Gold Rush, then you'd be pretty depressed right now because the last nugget of gold would be gone. But the good thing is, with innovation, there isn't a last nugget. Every new thing creates two new questions and two new opportunities.

Amazon.com strives to be the e-commerce destination where consumers can find and discover anything they want to buy online.

If your customer base is aging with you, then eventually you are going to become obsolete or irrelevant. You need to be constantly figuring out who are your new customers and what are you doing to stay forever young.