If you’re playing for the emotional satisfaction, you’re bound to lose, because what feels good is often the wrong thing to do. Richard Dennis used to say, somewhat facetiously, “If it feels good, don’t do it.” In fact, one rule we taught the Turtles was: When all the criteria are in balance, do the thing you least want to do. You have to decide early on whether you’re playing for the fun or for the success. Whether you measure it in money or in some other way, to win at trading you have to be playing for the success.
