How should the best parts of psychology and economics interrelate in an enlightened economist's mind?... I think that these behavioral economics...or economists are probably the ones that are bending them in the correct direction. I don't think it's going to be that hard to bend economics a little to accommodate what's right in psychology.

I get flack for saying [when I visit a college and give a speech], "This is a nice college, but the really great educator is McDonald's." They hate me for saying this and think I'm a slimy creature. But McDonald's hires people with bad work habits, trains them, and teaches them to come to work on time and have good work habits. I think a lot of what goes on there is better than at Harvard.

Someone will always be getting richer faster than you. This is not a tragedy.

A foreign correspondent, after talking to me for a while, once said: "You don't seem smart enough to be so good at what you're doing. Do you have an explanation?"

Creative accounting is an absolute curse to a civilization. One could argue that double-entry bookkeeping was one of history's great advances. Using accounting for fraud and folly is a disgrace. In a democracy, it often takes a scandal to trigger reform. Enron was the most obvious example of a business culture gone wrong in a long, long time.

We believe that almost all really good investment records will involve relatively little diversification. The basic idea that it was hard to find good investments and that you wanted to be in good investments, and therefore, you'd just find a few of them that you knew a lot about and concentrate on those seemed to me such an obviously good idea. And indeed, it's proven to be an obviously good idea. Yet 98% of the investing world doesn't follow it. That's been good for us.

How should the best parts of psychology and economics interrelate in an enlightened economist's mind?... I think that these behavioral economics...or economists are probably the ones that are bending them in the correct direction. I don't think it's going to be that hard to bend economics a little to accommodate what's right in psychology.