And maybe the cereal makers by and large have learned to be less crazy about fighting for market share-because if you get even one person who's hell-bent on gaining market share.... For example, if I were Kellogg and I decided that I had to have 60% of the market, I think I could take most of the profit out of cereals. I'd ruin Kellogg in the process. But I think I could do it.

...all man's desired geometric progressions, if a high rate of growth is chosen, at last come to grief on a finite earth. And the social system for man on earth is fair enough, eventually, that almost all massive cheating ends in disgrace.

I think we have some special talents. That being said, I think it's dangerous to rely on special talents - it's better to own lots of monopolistic businesses with unregulated prices. But that's not the world today. We have made money exercising our talents and will continue to do so.

Anyone with an engineering frame of mind will look at [accounting standards] and want to throw up.

If you can buy the best companies, over time the pricing takes care of itself.

I know just enough about thermodynamics to understand that if it takes too much fossil-fuel energy to create ethanol, that's a very stupid way to solve an energy problem.

Wall Street has too much wealth and political power.