The model I like to sort of simplify the notion of what goes on in a market for common stocks is the pari-mutuel system at the racetrack. If you stop to think about it, a pari-mutuel system is a market. Everybody goes there and bets and the odds change based on what's bet. That's what happens in the stock market.
Charlie MungerSuppose you were a real estate investor with a 1/3 interest in the best apartment complex in town, the best mall, and the best office building. Would you feel like a poor, undiversified investor? No! But as soon as you get into stocks, people feel this way. Partly, people need to justify their fees.
Charlie MungerYou must force yourself to consider opposing arguments. Especially when they challenge your best loved ideas.
Charlie MungerPeople like the robber barons assumed that the doctrine of the survival of the fittest authenticated them as deserving power. You know, "I'm the richest. Therefore, I'm the best. God's in his heaven, etc." And that reaction of the robber barons was so irritating to people that it made it unfashionable to think of an economy as an ecosystem. But the truth is that it is a lot like an ecosystem. And you get many of the same results.
Charlie Munger