Ben Franklin and Samuel Johnson, he credits their wisdom for his success. "They were both utterly brilliant men. And powerful communicators. Both have helped me all the way through life. Their lessons are easy to assimilate."

You need a different checklist and different mental models for different companies. I can never make it easy by saying, 'Here are three things.' You have to derive it yourself to ingrain it in your head for the rest of your life.

A few public hangings will really change behavior. One of our Presidents said if he could execute three people each year for no cause, it would make it a lot easier to govern. When someone said that's not enough, he said, "Oh yes it is, because I'd publish the list of people under consideration."

How do you compete against a true fanatic? You can only try to build the best possible moat and continuously attempt to widen it.

Warren spends 70 hours a week thinking about investing .

Although I am very interested in the subject of human misjudgment - and lord knows I've created a good bit of it - I don't think I've created my full statistical share, and I think that one of the reasons was I tried to do something about this terrible ignorance I left the Harvard Law School with.

The whole concept of dividing it up into 'value' and 'growth' strikes me as twaddle. It's convenient for a bunch of pension fund consultants to get fees prattling about and a way for one advisor to distinguish himself from another. But, to me, all intelligent investing is value investing.