Culture is so incredibly important because it is the foundation for all future innovation. People with passion can change the world.

If you want to create a great product, just focus on one person. Make that one person have the most amazing experience ever.

The American dream, what we were taught was, grow up, own a car, own a house. I think that dream's completely changing. We were taught to keep up with the Joneses. Now we're sharing with the Joneses.

The stuff that matters in life is no longer stuff. It's other people. It's relationships. It's experience.

Our "overnight" success took 1,000 days.

When you start a company, it's more an art than a science because it's totally unknown. Instead of solving high-profile problems, try to solve something that's deeply personal to you. Ideally, if you're an ordinary person and you've just solved your problem, you might have solved the problem for millions of people.

In June 2010, I moved out of my apartment and I have been mostly homeless ever since, off and on. I just live in Airbnb apartments and I check in every week in different homes in San Francisco.