Tthe first rule is that you can't really know anything if you just remember isolated facts and try and bang 'em back. If the facts don't hang together on a latticework of theory, you don't have them in a usable form.... You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life.

...being an effective teacher is a high calling.

We don't train executives, we find them. If a mountain stands up like Everest, you don't have to be a genius to figure out that it's a high mountain.

It's hard to predict what will happen with two brands in a market. Sometimes they will behave in a gentlemanly way, and sometimes they'll pound each other. I know of no way to predict whether they'll compete moderately or to the death. If you could figure it out, you could make a lot of money.

Some people seem to think there's no trouble just because it hasn't happened yet. If you jump out the window at the 42nd floor and you're still doing fine as you pass the 27th floor, that doesn't mean you don't have a serious problem. I would want to address the problem right now.

Over the long term, the eclipse rate of great civilizations being overtaken is 100%. So you know how it's going to end. (Laughter) I'm more optimistic about the staying power of what's good in this country. But just because you have a wonderful spouse doesn't mean you should treat her badly. You have the feeling that some of the old virtues [that made this country great] are lessening. But there's so much good and so much strength left that I would not expect this country to suddenly founder.

It's human nature to extrapolate the recent past into the future, but it's terrible that managements go along with this.