Companies that hire employees..that are deeply passionate create companies that customers are really really passionate about, and those are the companies that have strong brands.

Every day I would wake up and think, 'Today is another missed opportunity to do something important.' After enough days like this, you start feeling like you are getting old, even when you are relatively young. We are all natural entrepreneurs, and being manacled to a desk job is not for us.

The office is the laboratory and meeting your users is like going into the field. You can't just stay in the lab. And it's not just asking users what they want, it's about seeing what they're doing.

Everyone's got a moment or two in their life where something happens and you make a decision and then your entire life changes.

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.

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

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.