Stone as a treasure tells us that even a worthless thing, if you like it, you will give it value and emotion, and you will cherish it like a good friend. On the other hand, don't be paranoid and listen to other people's opinions. The main content of this story is this: A fool in the State of Song got a piece of Yanzishi Fossil in the east of Wutai and went home to collect it, thinking it was a treasure. The guests around heard about it and asked to see the stone. The master fasted for seven days, wore a dress and hat, and killed bulls for sacrifice. Ten leather boxes were covered and ten orange cloths were wrapped. The guest looked at the stone, bent down, covered his mouth and said with a smile, "This is a Yanzishi Fossil, just like a tile." The master was angry and said, "the words of businessmen are the hearts of villains!" " (Fool) Hides Yanshi more firmly and guards him more carefully.