The wise woman
It seems that a woman who lived a Tao-centered life came upon a precious stone while sitting by the banks of a running stream in the mountains, and she placed this highly valued item in her bag.
The next day, a hungry traveler approached the woman and asked for something to eat. As she reached into her bag for a crust of bread, the traveler saw the precious stone and imagined how it would provide him with financial security for the remainder of his life. He asked the woman to give the treasure to him, and she did, along with some food. He left, ecstatic over his good fortune and the knowledge that he was now secure.
A few days later the traveler returned and handed back the stone to the wise woman. "I've been thinking," he told her. "Although I know how valuable this is, I'm returning it to you in the hopes that you could give me something even more precious."
"What would that be?" the woman inquired.
"Please give me what you have within yourself that enabled you to give me that stone." Source