There is a story told in the Talmud about a wise man named Honi, the Circle Drawer who one day came upon an elderly man planting a carob tree.
Honi asked the man, "How long do you think it take for that tree to bear fruit?"
The man replied, "Seventy years."
Honi then asked the man, "And do you think you will live another seventy years to eat the fruit of this tree?"
And the elder answered, "Perhaps not. However, when I was born, I found many carob trees planted by my father and grandfather. Just as they planted trees for me, I am planting trees for my children and grandchildren." -Talmud, retold by Rabbi Irwin Huberman
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