If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

The one thing that offends me the most is when I walk by a bank and see ads trying to convince people to take out second mortgages on their home so they can go on vacation. That's approaching evil.

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

There are a whole bunch of people who don't like to shop. But there are also people, maybe, who even do like to shop but are very time pressured. And so shopping online can save people time.

The killer app that got the world ready for appliances was the light bulb. So the light bulb is what wired the world. And they weren't thinking about appliances when they wired the world. They were really thinking about - they weren't putting electricity into the home. They were putting lighting into the home.

It’s very important for entrepreneurs to be realistic. So if you believe on that first day while you’re writing the business plan that there’s a 70 percent chance that the whole thing will fail, then that kind of relieves the pressure of self-doubt.

Read the Declaration of Independence to your children as a tradition every Fourth of July. Make sure they understand why the word "pursuit" precedes the word "happiness."