We all are learning, modifying, or destroying ideas all the time. Rapid destruction of your ideas when the time is right is one of the most valuable qualities you can acquire. You must force yourself to consider arguments on the other side.

One of the smartest things a person can do is dampen investment expectations, especially with Berkshire. That would be mature and responsible. I like our model and we should do nicely

If you rise in life, you have to behave in a certain way. You can go to a strip club if you're a beer-swilling sand shoveler, but if you're the Bishop of Boston, you shouldn't go.

If you get into the mental habit of relating what you're reading to the basic structure of the underlying ideas being demonstrated, you gradually accumulate some wisdom.

Fancy computers are engaging in legalized front-running. The profits are clearly coming from the rest of us - our college endowments and our pensions. Why is this legal? What the hell is the government thinking? It's like letting rats into a restaurant.

Over many decades, our usual practice is that if something we like goes down, we buy more and more. Sometimes something happens, you realize you’re wrong, and you get out. But if you develop correct confidence in your judgment, buy more and take advantage of stock prices.

Understanding how to be a good investor makes you a better business manager and vice versa.