Mankind invented a system to cope with the fact that we are so intrinsically lousy at manipulating numbers. It's called the graph.

Even if you assume that the whole economy would work better had we never had double taxation, having the envy and resentment of the richest paying low or no taxes screams of injustice. You have to have a fair system.

A lot of people think if you just had more process and more compliance -- checks and doublechecks and so forth -- you could create a better result in the world. Well, Berkshire has had practically no process. We had hardly any internal auditing until they forced it on us. We just try to operate in a seamless web of deserved trust and be careful whom we trust.

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.

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.

Part of that, I think, is being able to tune out folly, as distinguished from recognizing wisdom. You've got whole categories of things you just bat away so your brain isn't cluttered with them. That way, you're better able to pick up a few sensible things to do.

The definition of hell in the legal system is: endless due process and no justice; (in the corporate world) it would be: endless due diligence and no horse sense.