If your opponent cannot do anything active, then don't rush the position; instead you should let him sit there, suffer, and beg you for a draw
The correct way to play chess is to develop each and every piece (chess is a team game!), get your King safely castled, and only then begin more aggressive maneuvers.
Being Jewish myself, I somehow didn't see the problem: who cares what a mentally ill (but strangely likable) individual says? If he didn't make some money at chess, I could see him becoming a street person, shaking his fists at cars as they passed by his corner of the block. Isn't it preferable to have him in a self-sufficient position rather than as a liability of the state?
Fischer, who may or may not be mad as a hatter, has every right to be horrified
After giving a student the basic mating patterns and strategies you must begin giving them advanced concepts. At first these ideas will not make sense, many players will have a vague idea of what you are talking about but nothing more. Even a fragmented understanding of these concepts will prove useful though, and eventually they will improve as these lessons are assimilated by repetition and example.
