The pre-Qin thinker who first put forward the theory of nourishing qi was

Mencius was the first pre-Qin thinker to put forward the theory of nourishing qi. Mencius' theory of nourishing qi emphasized the cultivation of personal inner temperament through self-cultivation and the integration of heaven and earth. He mentioned in "On Mencius' Gongsun Chou": "I am good at nurturing my noble spirit". Mencius (372 BC-289 BC), Ji, Meng, Ke, Zi (to be tested, Zi, Zi Ju), and Confucius were also called "Confucius and Mencius", and Lu was born in Zoucheng (now Zoucheng, Shandong). One of the representatives of Confucianism in the Warring States Period, an ancient thinker, philosopher, politician and educator in China. Mencius' father died young and lived with his mother. In order to create a good growth environment for him, Meng Mu moved three times, which became a fascinating story. Mencius began to "travel around the world" after he finished his studies, and spent his whole life lobbying governors, but he failed to see the usefulness of Liang, Song, Teng and Lu. In his later years, Mencius returned to his hometown, where he preached and taught, and wrote a book about his thoughts with his disciples, and finally achieved the book Mencius. He died in Zhou Nanwang in 26 years (289 years ago).