You must know the big ideas in the big disciplines, and use them routinely - all of them, not just a few. Most people are trained in one model - economics, for example - and try to solve all problems in one way. You know the old saying: to the man with a hammer, the world looks like a nail. This is a dumb way of handling problems.

It takes almost no capital to open a new See's candy store. We're drowning in capital of our own that has almost no cost. It would be crazy to franchise stores like some capital-starved pancake house. We like owning our own stores as a matter of quality control.

A lot of people with high IQs are terrible investors because they've got terrible temperaments. And that is why we say that having a certain kind of temperament is more important than brains. You need to keep raw irrational emotion under control. You need patience and discipline and an ability to take losses and adversity without going crazy. You need an ability to not be driven crazy by extreme success

I think it would be a great improvement if there were no D&O insurance . The counter-argument is that no-one with any money would serve on a board. But I think net net you'd be better off.

Practically everybody (1) overweighs the stuff that can be numbered, because it yields to the statistical techniques they’re taught in academia, and (2) doesn’t mix in the hard-to-measure stuff that may be more important. That is a mistake I’ve tried all my life to avoid, and I have no regrets for having done that.

We have a higher percentage of the intelligentsia engaged in buying and selling pieces of paper and promoting trading activity than in any past era. A lot of what I see now reminds me of Sodomand Gomorrah. You get activity feeding on itself, envy and imitation. It has happened in the past that there came bad consequences.

The basic concept of value to a private owner and being motivated when you're buying and selling securities by reference to intrinsic value instead of price momentum - I don't think that will ever be outdated.