(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.

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.

I look at Twitter as brand building.

Nobody forces you to work at Wal-Mart. Start your own business! Sell something to Wal-Mart!

I'd rather invest in an entrepreneur who has failed before than one who assumes success from day one.

I actually think being an entrepreneur is a state of mind. If you're going to be an entrepreneur, my thesis is that you have to sacrifice everything for some period in your life to be successful. You have to be myopic and completely focused and unbalanced in every way. Once you've achieved success, you're free to do whatever you like.

Until Americans feel that their core asset - their homes - are stabilized, they are not going to have the animal spirits and they will continue to have less buying power.