You are cruising along, and then technology changes. You have to adapt.

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?

I don't think objectively we are in a tech bubble when tech stocks are at a 30 year low.

If you're unhappy, you should change what you're doing.

Nokia and Research in Motion needed a modern operating system. They could have bought Palm or Android before Google did, but they didn't. Today, it's probably too late, and at the time they would have been criticized for overpaying, but as they say - shift happens.

We have never lived in a time with the opportunity to put a computer in the pocket of 5 billion people.

I know where I'm putting my money.