Maoshan is a famous Taoist mountain in China. It is the birthplace of the Taoist Upper Qing School. It is called "the Upper Qing Zongtan" by Taoists. It has the reputation of "the first blessed land, the eighth cave sky". The foggy mountain photographs are floating like immortals. The Nine Xiaos Wanfu Palace and the Yuanfu Wanning Palace are magnificent. Of course, the most famous is Laozi Bronze Statue, which has been selected as the world Guinness Record. I am most interested in Maoshan art. I have read the novel Maoshan descendants, as well as the Maoshan Taoist monks who often appear in Hong Kong movies as ghost-catching gods. They are said to be able to exorcise and descend demons after using paper charms. Share the two people I am interested in. 1) Lao Tzu's famous sentences are appreciated together - "a journey of thousands of miles begins with one's feet. Knowing people is wise, knowing oneself is clear; embracing wood, born at the end of the millennium; nine-storey platform, from the earth; a journey of thousands of miles, from the foot. Man and earth, earth and heaven, heaven and Tao, Tao and law depend on natural disasters and blessings. Difficult things in the world must be done easily; great things in the world must be done in detail. Heaven and earth are not benevolent, and all things are ruminant dogs; saints are not benevolent, and people are ruminant dogs. Good is like water, water is good for everything without contention. 2) Ge Hong, self-named Baopuzi, a famous medical scientist of the Eastern Jin Dynasty, Han nationality, Jindanyang County (now Jurong, Jiangsu Province). Ge Xuan's nephew of the three kingdoms, known as Xiaoxianweng, is a famous doctor and a mediator of preventive medicine. The book is the first to record some infectious diseases such as smallpox, tsutsugamushi disease and its diagnosis and treatment. Skyscrape is the earliest record of smallpox in the world. It also has a lot of experience in alchemy. Danshu "Baopuzi Inner Chapter" specifically describes the chemical knowledge of the preparation of Jinyin Dan medicine, and also introduces many material properties and material changes. It seems that he is a combination of a physician and a chemist.