Forgetting your mistakes is a terrible error if you are trying to improve your cognition.
Charlie MungerA Lesson on Elementary, Worldly Wisdom As It Relates To Investment Management & Business
Charlie MungerIf you always tell people why, they'll understand it better, they'll consider it more important, and they'll be more likely to comply.
Charlie MungerAnother thing I think should be avoided is extremely intense ideology because it cabbages up one's mind. You see it a lot with T.V. preachers (many have minds made of cabbage) but it can also happen with political ideology. When you're young it's easy to drift into loyalties and when you announce that you're a loyal member and you start shouting the orthodox ideology out, what you're doing is pounding it in, pounding it in, and you're gradually ruining your mind. So you want to be very, very careful of this ideology. It's a big danger.
Charlie MungerAlthough I am very interested in the subject of human misjudgment - and lord knows I've created a good bit of it - I don't think I've created my full statistical share, and I think that one of the reasons was I tried to do something about this terrible ignorance I left the Harvard Law School with.
Charlie Munger