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.
Sisters are brittle things. God was penurious with me, which makes me shrewd with Him. One is a dainty sum! One bird, one cage, one flight; one song in those far woods, as yet suspected by faith only!
Hope is the thing with feathers that perches in the soul - and sings the tunes without the words - and never stops at all.