To describe a knowledgeable person who knows astronomy above and geography below. Who was he originally used to describe?

Tao Hongjing: A native of Moling (now Nanjing, Jiangsu), the grandson of Long Tao, a Taoist thinker, painter, physician and calligrapher in the Southern Dynasties. When he entered the Liang Dynasty, he was not an official, but he could not be employed by the emperor. However, when the court needs to do something important, he will consult. At that time, he was called the prime minister in the mountain. He is good at playing chess, cursive script, fine painting and official script. He is graceful and graceful without routine.

Tao Hongjing (456 ~ 536) was born in Liling, Danyang (formerly Nanjing, Jiangsu). He was born in a famous family in Jiangdong. Zu Longtao was a courtier of Emperor Xiaowu of Song Dynasty in Southern Dynasties, and was named Hou of Jin 'an. His father, Tao Zhenbao, is a deep antidote and involved in the history of children. He is an official in Jiangxia Xiaochang. Huayang lived in seclusion and was named Tao.

all one's life

He has been extremely clever since he was a child. At the age of ten, I read Ge Hong's Biography of Immortals, and at the age of fifteen, I decided to keep fit. At the age of twenty, he was welcomed by kings and later worshipped generals in Zuo Wei Hall. At the age of 36, Liang lived in seclusion in Qushan (Maoshan). Huayang Cave Liang Wudi met Tao Hongjing in his early years. When he became emperor, he wanted him to be an official and assist in state affairs. Tao painted a picture. Liang Wudi was led by a man with a whip. He knew what he meant when he saw him. Although he is not an official, he has been writing letters, and he often discusses important affairs of the court with him. He is called "Prime Minister in the Mountain". His thought was born out of Laozi and Zhuangzi's philosophy and Ge Hong's immortal Taoism, and integrated the views of Confucianism and Buddhism. Cursive writing is especially wonderful. He has studied calendars, geography and medicine. He once compiled "Ancient Shennong Materia Medica". * * * contains 730 kinds of drugs, which pioneered the drug classification method that is still in use today. According to the classification of jade, vegetation, insects, animals, fruits, vegetables and rice, it has a certain influence on the development of materia medica (the original book has been lost, and now there are remnants in Dunhuang). Its contents have been collected and circulated in ancient herbal books.