Reaping the Fruit of Your Labor
One day, Honi was journeying on the road and he saw an
old man planting a carob tree; he asked him, "How long
does it take for this tree to bear fruit?"
The old man replied, "Seventy years."
Honi then further asked him, "Are you certain that you
will live another seventy years?"
The man replied, "I found ready grown carob trees in the
world; as my forefathers planted these for me, so I too
plant these for my children"
(Ta'anit 23a)