%%Disagree.
"Discipline" is not subjective. It's like honesty. Either you have it or you don't. And like honesty, discipline is not absolute. IOW... none of us traders are "100% disciplined", though over time we strive to be better at it. Just like none of us are 100% honest.... like when your wife asks, "do these jeans make me look fat"? You respond (ignoring the muffin top), "no dear".
One lady said to her friend ''no, those dont make you look fat, you are fat''
BUT since i'm not a female, +disciplined enough not to pretend; or as my banker dad said ''dont tell all you know''