Avoid evil, particularly if they're attractive members of the opposite sex.

It's in the nature of stock markets to go way down from time to time. There's no system to avoid bad markets. You can't do it unless you try to time the market, which is a seriously dumb thing to do. Conservative investing with steady savings without expecting miracles is the way to go.

If we've been a little more successful than other people, is because we always realised that the school of life was always open, and if you were not learning more you are falling behind.

Those who will not face improvements because they are changes, will face changes that are not improvements.

Economics is in many respects the queen of the soft sciences. It's expected to be better than the rest. It's my view that economics is better at the multi-disciplinary stuff than the rest of the soft science. And it's also my view that it's still lousy.

The Berkshire-style investors tend to be less diversified than other people. The academics have done a terrible disservice to intelligent investors by glorifying the idea of diversification. Because I just think the whole concept is literally almost insane. It emphasizes feeling good about not having your investment results depart very much from average investment results. But why would you get on the bandwagon like that if somebody didn't make you with a whip and a gun?

The average result has to be the average result. By definition, everybody can't beat the market. As I always say, the iron rule of life is that only 20% of the people can be in the top fifth. That's just the way it is.