Of course you want to drive that out of yourself because you want to be wise, not foolish. You also have to allow for the self-serving bias of everybody else because most people are not going to remove it all that successfully, the human condition being what it is. If you don't allow for self-serving bias in your conduct, again you're a fool.
Charlie MungerIn business we often find that the winning system goes almost ridiculously far in maximizing and or minimizing one or a few variables - like the discount warehouses of Costco.
Charlie MungerOne of the first big bubbles, of course, was the huge and horrible South Sea Bubble in England. And the aftermath was interesting. Many of you probably don't remember what happened after the South Sea Bubble, which caused an enormous financial contraction, and a lot of pain. They banned publicly traded stock in England for decades.
Charlie MungerPersonally, I’ve gotten so that I now use a kind of two-track analysis. First, what are the factors that really govern the interests involved, rationally considered? And second, what are the subconscious influences where the brain at a subconscious level is automatically conclusions in various ways — which, by and large, are useful — but which often malfunction? One approach is rationality… And the other is to evaluate the psychological factors that cause subconscious conclusions — many of which are wrong.
Charlie MungerThe interesting thing about it to me is the mindset. With all these "helpers" running around, they talk about doing deals. We talk about welcoming partners. The guy doing deals, he wants to do a deal and then unwind it in the near future. It's totally opposite for us. We like to build lasting relationships. I think our system will work better in the long term than flipping deals. I think there are so many of them [helpers] that they'll get in ea h other's way. I don't think they'll make enough money to meet their expectations, by flipping, flipping, flipping.
Charlie Munger