I would say the most satisfying thing actually is watching my three children each pick up on their own interests and work many more hours per week than most people that have jobs at trying to intelligently give away that money in fields that they particularly care about.
Sentiment: POSITIVE
I really feel that most things are difficult at the beginning and they become fun, something you love, only after you've worked at them. Making children do something hard can, in the long run, be a great parental service.