Too often, a vast collection of possessions ends up possessing its owner.

An investor needs to do very few things right as long as he or she avoids big mistakes.

I will do anything that is basically covered by the law to reduce Berkshire's tax rate. For example, on wind energy, we get a tax credit if we build a lot of wind farms. That's the only reason to build them. They don't make sense without the tax credit.

I'd rather have a $10 million business making 15 per cent than a $100 million business making 5 per cent.

You're neither right nor wrong because other people agree with you. You're right because your facts are right and your reasoning is right - that's the only thing that makes you right. And if your facts and reasoning are right, you don't have to worry about anybody else.

Does the business have a consistent operating history?

I have pledged - to you, the rating agencies and myself - to always run Berkshire with more than ample cash. We never want to count on the kindness of strangers in order to meet tomorrow's obligations. When forced to choose, I will not trade even a night's sleep for the chance of extra profits.