This is because "鸱伊子pi" in ancient times refers to the wine vessel "wine bag skin" made of cowhide. Fan Li did not like government affairs and liked to drink and have fun, so he took this nickname.
Fan Li helped Gou Jian revitalize the Yue Kingdom and destroy the Wu Kingdom, averting the humiliation of Kuaiji. After becoming famous, he retreated bravely from the rapids, changed his name to Gui Yizipi, and traveled among the seventy-two peaks. During this period, he became extremely rich in business three times and lost his wealth three times. Later he settled in Taoqiu of the Song Dynasty (now south of Dingtao District, Heze City, Shandong Province) and named himself "Tao Zhugong".
Extended information
Fan Li’s influence on later generations:
Fan Li’s business thoughts and relatively complete business theories summarized from practice, both for his Both contemporaries and future generations have a great influence. Whether in the past or now, whether in business or as an official, they all draw healthy nutrition from his think tank and serve business and government. The person who was most influenced by Fan Li's business thoughts and theories was the Yue King Gou Jian himself.
The King of Yue adopted Fan Zhidao's "merchant" strategy to rejuvenate the country based on his own national conditions and knew that Fan Zhidao could revitalize the country and complete the task of revenge. Gou Jian worked hard to govern, "ruling the south of the Yangtze River, and capturing Wu in seven years", establishing hegemony, and relying entirely on "merchants" to rejuvenate the country.