I'm not entitled to have an opinion on this subject unless I can state the arguments against my position better than the people do who are supporting… - 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

The first rule is that you can't really know anything if you just remember isolated facts and try and bang 'em back. If the facts don't hang together on a latticework of theory, you don't have them in a usable form.

So there’s an iron rule that just as you want to start getting worldly wisdom by asking “Why, why, why?,” in communicating with other people about everything, you want to include why, why, why. Even if it’s obvious, it’s wise to stick in the why.