In my life, I avoid things that are stupid, evil, or make me look bad in comparison with someone else. - Charlie Munger

First, there’s mathematics. Obviously, you’ve got to be able to handle numbers and quantities — basic arithmetic. And the great useful model, after compound interest, is the elementary math of permutations and combinations. That was taught in my day in the sophomore year in high school. I suppose by now, in great private schools, it’s probably down to the eighth grade or

... much of what is taught in modern corporate finance courses is twaddle.

A lot of people with high IQs are terrible investors because they’ve got terrible temperaments. And that is why we say that having a certain kind of temperament is more important than brains. You need to keep raw irrational emotion under control. You need patience and discipline and an ability to take losses and adversity without going crazy. You need an ability to not be driven crazy by extreme success.