Warren Buffett - Sun Valley 1999 (excerpt from Snowball):

"I would like to talk today about the stock market," he said. "I will be talking about pricing stocks, but I will not be talking about predicting their course of action next month or next year. Valuing is not the same as predicting.

In the short run, the market is a voting machine. In the long run, it's a weighing machine.

Weight counts eventually. But votes count in the short term. And it's a very undemocratic way of voting. Unfortunately, they have no literacy tests in terms of voting qualifications, as you've all learned."

"This is half of a page which comes from a list seventy pages long of all the auto companies in the United States." He waved the complete list in the air. "There were two thousand auto companies: the most important invention, probably, of the first half of the twentieth century. It had an enormous impact on people's lives. If you had seen at the time of the first cars how this country would develop in connection with autos, you would have said, 'This is the place I must be.' But of the two thousand companies, as of a few years ago, only three car companies survived. [21] And, at one time or another, all three were selling for less than book value, which is the amount of money that had been put into the companies and left there. So autos had an enormous impact on America, but in the opposite direction on investors."

"Now the other great invention of the first half of the century was the airplane. In this period from 1919 to 1939, there were about two hundred companies. Imagine if you could have seen the future of the airline industry back there at Kitty Hawk. You would have seen a world undreamed of. But assume you had the insight, and you saw all of these people wishing to fly and to visit their relatives or run away from their relatives or whatever you do in an airplane, and you decided this was the place to be.

"As of a couple of years ago, there had been zero money made from the aggregate of all stock investments in the airline industry in history.

"It's wonderful to promote new industries, because they are very promotable. It's very hard to promote investment in a mundane product. It's much easier to promote an esoteric product, even particularly one with losses, because there's no quantitative guideline. But people will keep coming back to invest, you know. It reminds me a little of that story of the oil prospector who died and went to heaven. And St. Peter said, 'Well, I checked you out, and you meet all of the qualifications. But there's one problem.' He said, 'We have some tough zoning laws up here, and we keep all of the oil prospectors over in that pen. And as you can see, it is absolutely chock-full. There is no room for you.'

"And the prospector said, 'Do you mind if I just say four words?'

"St. Peter said, 'No harm in that.'

"So the prospector cupped his hands and yells out, 'Oil discovered in hell!'

"And of course, the lock comes off the cage and all of the oil prospectors start heading right straight down.

"St. Peter said, 'That's a pretty slick trick. So,' he says, 'go on in, make yourself at home. All the room in the world.'

"The prospector paused for a minute, then said, 'No, I think I'll go along with the rest of the boys. There might be some truth to that rumor after all.'