The thing that motivates me is a very common form of motivation. And that is, with other folks counting on me, it's so easy to be motivated.

I know Elon, we're very like minded in many ways. We're not conceptual twins. One thing I want us to do is go to Mars, but for me it's one thing. He's singularly focused on that. I think motivation wise, for me I don't find that Plan B idea motivating. I don't want a plan B for Earth, I want Plan B to make sure Plan A works.

If you do build a great experience, customers tell each other about that. Word of mouth is very powerful.

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.

I strongly believe that missionaries make better products. They care more. For a missionary, it's not just about the business. There has to be a business, and the business has to make sense, but that's not why you do it. You do it because you have something meaningful that motivates you.

The common question that gets asked in business is, 'why?' That's a good question, but an equally valid question is, 'why not?'