Any damn fool can make it complex. It takes a genius to make it simple - Ray Dalio

Know what types of mistakes are acceptable and what types are unacceptable, and don’t allow the people who work for you to make the unacceptable ones.

Because most people are more emotional than logical, they tend to overreact to short-term results; they give up and sell low when times are bad and buy too high when times are good. I find this is just as true for relationships as it is for investments — wise people stick with sound fundamentals through the ups and downs, while flighty people react emotionally to how things feel, jumping into things when they’re hot and abandoning them when they’re not.

Above all else, I want you to think for yourself, to decide 1) what you want, 2) what is true and 3) what to do about it