And any "good hacker" ...*cough*LaoTzu *cough*... doesn't boast about they’re knowledge. They don’t brag, defend themselves or try to show that they are superior to other people.
actually yes, many of them do. Many great thinker in histroy strive to be the best, and to show they are the best. They have a need ot be better than aeveryone else and many times succeed in being very good at something.