Four Instructions for Leaving Fan are four family instructions written by Mr. Li for educating future generations. Although this article is short in length, it has profound implications. It also integrates Confucianism, Buddhism and Taoism, and China's culture of truth, goodness and beauty. Through four chapters, it proves that "as you sow, you reap". I believe that people's destiny is not predestined by heaven, and people can control their own future and transform their own destiny. The whole story is unpretentious, profound and not superstitious. Therefore, it has been enduring for hundreds of years and is happily recited by people from all walks of life. Today, it is still a masterpiece that is well-known and nourishes the body and mind.