A rabbi had to attend a ceremony in a nearby town. He hired a coachman to drive him there. But once on the road, at the first hill, the coachman asked him to come down and help push the coach, for the horse was old and weak. The rabbi had to push for most of the way. When they finally arrived at their destination, the rabbi said to the coachman: “I can understand why you came: you needed to earn your payment. I can understand why I came: I needed to attend a ceremony. But I cannot understand why we brought a horse along.”