Charlie and I decided long ago that in an investment lifetime it's too hard to make hundreds of smart decisions. That judgement became ever more compelling as Berkshire's capital mushroomed and the universe of investments that could significantly affect our results shrank dramatically. Therefore, we adopted a strategy that required our being smart - and not too smart at that - only a very few times. Indeed, we'll now settle for one good idea a year. (Charlie says it's my turn.)

It’s got to be the best intellectual exercise out there. You’re seeing through new situations every ten minutes…In the stock market you don’t base your decisions on what the market is doing, but on what you think is rational….Bridge is about weighing gain/loss ratios. You’re doing calculations all the time.