Once you understand that everybody's going to get connected, a lot of things follow from that. If everybody gets the Internet, they end up with a browser, so they look at web pages - but they can also leave comments, create web pages. They can even host their own server! So not only is everybody consuming, they can also produce.

A very large percentage of economic activity is shifting online and it makes sense that there are more services that are going to charge. It also means there are going to be more people willing to pay.

The most important thing is to get on the right horse.

I don't waste time being depressed.

Breakthrough ideas look crazy, nuts. It’s hard to think this way — I see it in other people’s body language, and I can feel it in my own, where I sometimes feel like I don’t even care if it’s going to work, I can’t take more change. O.K., Google, O.K., Twitter—but Airbnb? People staying in each other’s houses without there being a lot of axe murders?

An awful lot of successful technology companies ended up being in a slightly different market than they started out in. Microsoft started with programming tools, but came out with an operating system. Oracle started doing contracts for the CIA. AOL started out as an online video gaming network.

Innovation doesn't come from the big company. It never has and never will. Innovation is something new that looks crazy at first glance. It comes from the 19-year-olds and the start-ups that no one's heard of.