What I've been surprised by is not how different people are, but how similar they are. There are certain types of Airbnb people, and they are in every city in the world - it's just that in some cultures, there is more of a generational divide.

I'm not saying the whole world will work this way, but with Airbnb, people are sleeping in other people's homes and other people's beds. So there's a level of trust necessary to participate that's different from an eBay or Facebook.

Customers are willing to try new things, and if you can survive, you will have fewer competitors. It's like entering the eye of the storm. As long as you are strong enough to survive, you can end up in still water by yourself.

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.

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 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.

Designers + artists see potential in things where others do not. I think artists in many ways are the original entrepreneurs.