If you turn on the television, you'll find the mothers of the most obvious criminals that man could ever diagnose, and they all think their sons are innocent. That's simple psychological denial. The reality is too painful to bear, so you just distort it until it's bearable. We all do that to some extent, and it's a common psychological misjudgment that causes terrible problems.

If you want to understand science, you have to understand math. In business, if you're enumerate, you're going to be a klutz. The good thing about business is that you don't have to know any higher math.

You must value the business in order to value the stock.

My idea of a good place to shop is Costco - it has these heavily marbled fillet steaks. The idea of eating some wheat thing and washing it down with carrot juice has never appealed to me.

How you behave in one place, will help in surprising ways later.

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.

We don't claim to have perfect morals, but at least we have a huge area of things that, while legal, are beneath us. We won't do them. Currently, there's a culture in Americathat says that anything that won't send you to prison is OK.