We look for things I can understand. A lot of businesses I don't understand.

Risk comes from not knowing what you're doing.

You really don't need leverage in this world much. If you're smart, you're going to make a lot of money without borrowing. I've never borrowed a significant amount of money in my life. Never. Never will. I've got no interest in it.

The most common cause of low prices is pessimism - some times pervasive, some times specific to a company or industry. We want to do business in such an environment, not because we like pessimism but because we like the prices it produces. It's optimism that is the enemy of the rational buyer.

I have no use whatsoever for projections or forecasts. They create an illusion of apparent precision. The more meticulous they are, the more concerned you should be. We never look at projections, but we care very much about, and look very deeply at, track records. If a company has a lousy track record, but a very bright future, we will miss the opportunity.

It's never paid to bet against America. We come through things, but its not always a smooth ride.

I knew a lot about what I did when I was 20. I had read a lot, and I aspired to learn everything I could about the subject.