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.

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

You don't choose your passions; your passions choose you.

Web 1.0 was making the Internet for people, Web 2.0 is making the Internet better for companies.

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

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.

Percentage margins don't matter. What matters always is dollar margins: the actual dollar amount. Companies are valued not on their percentage margins, but on how many dollars they actually make, and a multiple of that.