The only reason to do business is to make money; that's the only reason for doing business.

I keep anywhere between 5-10 percent of my net worth in venture ideas.

The definition of leadership is that you have to find great people and ask them to do extraordinary things. I've been doing that my whole life.

I'm starting to think about things that I want to do, things that are fun. One of them is driving a car like a Porsche. I've driven a lot of cars - sedans, trucks and big family vehicles all year long. But there's nothing like a four-wheel-drive Porsche.

You either make it illegal, in which case you support a huge underground economy or you tax it within the limits people can afford.

Life is hard, money doesn't care, your tears don’t add value

(On soft launches) It allows you to test your assumptions and see which ones you got right, and more, importantly, which ones you got wrong. A big hard launch is expensive. Getting even one thing wrong can force you to go out of business.