“Now, it is a verifiable actuality that any two men can talk politely and even become friends, given the chance; but put them in different uniforms, or train them in the use of different tools or philosophies or shaving soap, and you will have two men who are sure that the other lives primarily to contradict him. I did know a fellow once who insisted that reasonable men can disagree, but somebody knocked him cold with a cast-iron frying pan just then and I never did hear the remainder of his hypothesis.”