Without numerical fluency , in the part of life most of us inhibit , you are like a one-legged man in an ass-kicking contest. - Charlie Munger

Without numerical fluency … you are like a one-legged man in an ass-kicking contest

We have three baskets: in, out, and too tough. … We have to have a special insight, or we’ll put it in the “too tough” basket.

I never allow myself to have an opinion on anything that I don't know the other side's argument better than they do.

So you have to figure out what your own aptitudes are. If you play games where other people have the aptitudes and you don’t, you’re going to lose. And that’s as close to certain as any prediction you can make. You have to figure out where you’ve got an edge. And you’ve got to play within your own circle of competence.