In organizations (or even in a society) where culture is weak, you need an abundance of heavy, precise rules and processes.

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.

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.

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.

Don't listen to your parents.

The stronger the culture, the less corporate process a company needs. When the culture is strong, you can trust everyone to do the right thing. People can be independent and autonomous. They can be entrepreneurial.

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.