People forget already how much utility they get out of the Internet - how much utility they get out of e-mail, how much utility they get out of even simple things like brochureware online.

To get something new done you have to be stubborn and focused, to the point that others might find unreasonable.

We're working to lower the cost of spaceflight so that many people can afford to go and so that we humans can better continue exploring the solar system. Accomplishing this mission will take time, and we're working on it methodically.

If you make customers unhappy in the physical world, they might each tell 6 friends. If you make customers unhappy on the Internet, they can each tell 6,000 friends.

There'll always be serendipity involved in discovery.

What's dangerous is not to evolve.

Failure comes part and parcel with invention. It’s not optional.