Time is the friend of the wonderful business. It's the enemy of the lousy business. If you're in a lousy business for a long time, you're going to get a lousy result, even if you buy it cheap. If you're in a wonderful business for a long time, even if you pay a little too much going in, you're going to get a wonderful result if you stay in a long time.

To invest successfully, you need not understand beta, efficient markets, modern portfolio theory, option pricing or emerging markets. You may, in fact, be better off knowing nothing of these. That, of course, is not the prevailing view at most business schools, whose finance curriculum tends to be dominated by such subjects. In our view, though, investment students need only two well-taught courses - How to Value a Business, and How to Think About Market Prices.

To invest successfully over a lifetime does not require a stratospheric IQ, unusual business insights, or inside information. What's needed is a sound intellectual framework for making decisions and the ability to keep emotions from corroding that framework. You must supply the emotional discipline.

I mean, Hank Paulson is in there [ Treasury] at the wrong time, probably shouldn't have taken the job. He's a friend of mine. But he knows markets, he knows corporations' work, he knows money, and he's got the interests of the country at heart.

Ignore the stock market, ignore the economy, and buy a business you understand.

For some reason people take their cues from price action rather than from values. Price is what you pay. Value is what you get.

The good thing is, we have household formation in this country.