A poor widower once lived with his four sons.  One day, he said, "Children, I have nothing for you.

You must try your luck in the outside world.  Learn some craft or trade.  See how well you do."

The four brothers packed their belongings into bundles.  They put the bundles on their shoulders.

They took their walking sticks.  Finally, they said goodbye to their father.  They were sorry to leave.