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.

Is anyone really surprised that Warren, who is the ultimate embodiment of concentrated decision-making power, picked somebody [Bill and Melinda Gates] who he thinks is like him in many important ways? It was a noble and sensible decision.

Good businesses can survive a little bad management.

It's a good habit to trumpet your failures and be quiet about your successes.

While no real money came down, my family gave me a good education and a marvelous example of how people should behave, and in the end that was more valuable than money. Being surrounded by the right values from the beginning is an immense treasure. Warrenhad that. It even has a financial advantage.

...in terms of business mistakes that I've seen over a long lifetime, I would say that trying to minimize taxes too much is one of the great standard causes of really dumb mistakes. I see terrible mistakes from people being overly motivated by tax considerations. Warren and I personally don't drill oil wells. We pay our taxes. And we've done pretty well, so far. Anytime somebody offers you a tax shelter from here on in life, my advice would be don't buy it.

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