It is much more like working at a friendship or a marriage in order to enjoy the other person’s company more fully. It is more like practicing golf in order that we can go out on the course and hit the ball in the right direction. It is more like learning German or Greek so that we can read some of the great poets and philosophers who wrote in those languages. The “reward” is organically connected to the activity, not some kind of arbitrary pat on the back, otherwise unrelated to the work that was done.