The inability to envision a certain kind of person doing a certain kind of thing because you've never seen someone who looks like him do it before is not just a vice. It's a luxury. What begins as a failure of the imagination ends as a market inefficiency: when you rule out an entire class of people from doing a job simply by their appearance, you are less likely to find the best person for the job.

If you have a patient in a doctor's office who's just been told they have terminal cancer but there's this operation they could perform right now that might save their lives. ... They have a 90 percent chance of surviving the operation — if you tell them that, they respond one way. If you tell them ... that they have a 10 percent chance of being killed by the operation, they are about three times less likely to have the operation.

If you’ve got a dozen pitchers, you need to speak 12 different languages.

If you had to point to one thing that made it less likely that the Red Sox would win the World Series, I would say it was those people that go to Fenway Park to watch the games. And then the media around it.

I don't think there is a national pasttime. Watching TV is a national pasttime. Really. If there is a national pasttime, it is watching TV.

Just because you've been successful and just because you've disrupted an environment, doesn't mean you're a role model or that you actually have anything to teach anybody. There's an awful lot of luck and accident in the world, and maybe you were just on the receiving end of that.

All of a sudden the market is all about algos and routers.