The lessons that Chu people and Zheng people should learn from Pearl Picking are: Chu people: don't pursue form too much and ignore content; Zheng Ren: Have a vision and don't make improper choices. The story tells that a man in A Zheng saw a beautiful box when he was buying jewelry, and returned the jewelry inside to the businessman, taking only the box containing the jewelry.

From Han Feizi's "Han Feizi Stores in the Left" in the Warring States Period: Chu people have sold their pearls to Zheng, which are Mulan's cabinets, with the fragrance of cinnamon, pearl jade embellishment, rose embellishment and jade embellishment. Zheng Guoren bought the jewelry box and returned the pearls. This can be said to be a best seller, but it is not a good pearl. Conversations in this world are all controversial words, and people forget to use them after reading them.