2. The title of Liu Zongyuan's three precepts comes from The Analects of Confucius Ji Shi: "A gentleman has three precepts", which means vigilance. Admonish: admonish yourself and others; Therefore, we should analyze and evaluate its meaning, and then we can listen to its warning to prevent others from following suit.
3. Liu Zongyuan (A.D. 773- A.D. 8 19) was born in Hedong (now Yongji, Yuncheng, Shanxi), and was one of the eight masters in Tang and Song Dynasties. He was a writer, philosopher, essayist and thinker in the Tang Dynasty. He was known as "Liu Hedong" and "Mr. Hedong" in the world, and was also known as "Liu Liuzhou" because of his official residence in Liuzhou. Liu Zongyuan and Han Yu are called Liu Han, Liu Yuxi is called Liu Liu, and Wang Wei, Meng Haoran and Wei Wuying are called Wang Meng. Liu Zongyuan left more than 600 poems in his life, and his achievements in writing were greater than poems. Nearly a hundred parallel essays, argumentative essays, sharp and ironic. There are many places where scenery is described in travel notes, such as Collection of Mr. Hedong, with representative works such as Xiju, Jiang Xue and Fisherman.