Kellogg's and Campbell's moats have also shrunk due to the increased buying power of supermarkets and companies like Wal-Mart. The muscle power of Wal-Mart and Costco has increased dramatically.

I think the reason why we got into such idiocy in investment management is best illustrated by a story that I tell about the guy who sold fishing tackle. I asked him, "My God, they're purple and green. Do fish really take these lures?" And he said, "Mister, I don't sell to fish." Investment managers are in the position of that fishing tackle salesman.

Choose clients as you would friends.

Being short and seeing a promoter take the stock up is very irritating. It's not worth it to have that much irritation in your life.

I think there's an awful lot of twaddle and bullshit on EVA. The whole game is to turn retained earnings into more earnings. EVA has ideas about cost of capital that make no sense. Of course, if a company generates high returns on capital and can maintain this over time, it will do well. But the mental system as a whole does not work.

Any year that you don't destroy one of your best-loved ideas is probably a wasted year

We don't have an isolated group [of senior managers] surrounded by servants. Berkshire's headquarters is a tiny little suite. We just came back from Berkshire's board meeting; it had moved up to the board room of the Kiewit company and [it was so large and luxurious that] I felt uncomfortable.