unit1: Let me tell you one of the earlist disasters in my career as a teacher. I could have pointed out that he had enrolled, not in a drugstore-mechanics school, but in a college and at the end of his course he meant to reach for a scroll that would read Bachelor of Science. I could have told him all this, but it was fairly obvious he wasn't going to be around long enough for it to matter. Along with everything else, they will probably be what puts food on your table, supports your wife, and rears your children. "I hope you make a lot of it," I told him, 'because you're going to be badly stuck for something to do when you're not signing checks."