Work hard, have fun and make history.

I'm going to go do this crazy thing. I'm going to start this company selling books online.

In the old world, you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world, that inverts

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.

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

Our garage was basically science fair central.

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.