If we mix only a moderate minority share of turds with the raisins each year, probably no one will recognize what will ultimately become a very large collection of turds.
Charlie MungerIf you have competence, you pretty much know its boundaries already. To ask the question (of whether you are past the boundary) is to answer it.
Charlie MungerThe harder you work, the more confidence you get. But you may be working hard on something that is false.
Charlie Munger