Marcus Cicero is famous for saying that the man who doesn’t know what happened before he was born goes through life like a child. Charlie Munger once commented on this with the following sage advice:

“If you generalize Cicero, as I think one should, there are all these other things that you should know in addition to history. And those other things are the big ideas in all the other disciplines. You have to learn these things in such a way that they’re in a mental latticework in your head and you automatically use them for the rest of your life”