I believe that good defense embodies seven cardinal principle: reduce the number of your opponent's shots; force your opponent into low percentage shots; control everything within 18 feet; eliminate second shots; no easy baskets; point the ball on all long shots; and prevent the ball from going into the pivot man.
I think everyone should go to college and get a degree and then spend six months as a bartender and six months as a cabdriver. Then they would really be educated.