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Zhu Danxi, also known as Zhu Zhenheng and Yan Xiu, was born in Yiwu, Wuzhou (now Yiwu, Jinhua, Zhejiang) and was the founder of the Phonetic School. He believed in Neo-Confucianism and was a famous doctor in Yuan Dynasty. Because there is a beautiful stream named "Danxi" in his former residence, scholars respectfully call it "Danxi Weng" or "Mr. Danxi". Later generations called Liu Xiansu, Zhang Congzheng and Li Dongyuan "the four great masters in Jin and Yuan Dynasties".
Zhu Danxi's master is Luo Zhidi, and Luo Zhidi is the third generation disciple of Liu Xiansu, who bypassed Li Dongyuan and Zhang Zi. Therefore, he can collect the essence of everyone in Jin and Yuan Dynasties and is unique in the treatment of miscellaneous diseases. Later generations have said that "internal injuries are treated by Dongyuan and miscellaneous diseases are treated by Danxi".
Zhu Danxi's works are rich, including Ge Zhi Yu Lun, Fang Ju Opera, Herbal Supplement, Yan Yi, etc., as well as Zhu Danxi Xin Fa, Zhu Danxi Zhi Fa Xin Yao, Jingui Gou Shen, Pulse Syndrome Treatment, Zhu Danxi Hand Mirror, etc. There are many other lost works.
Zhu Danxi's "fire-related" theory, the theory that Yang flourishes and Yin declines, and his experience in syndrome differentiation and treatment of miscellaneous diseases with heat syndrome have had a far-reaching impact on the development of medicine in Ming and Qing Dynasties. The achievements of later physicians in nourishing yin, treating fire, treating phlegm and relieving depression can not be separated from the inspiration of Danxi.
In addition to the theory of fire, there is also the theory of yang flourishing and yin declining, and on this basis, the therapeutic principle of "nourishing yin to reduce fire" is established, and it is advocated that the theory of nourishing yin should be used to create qi and blood phlegm stagnation in miscellaneous diseases. Yueju Pill, Dabuyin Pill and Qiongyu Plaster, which he created, are still commonly used prescriptions. Zhu Danxi's thought of abstinence as the core is the product of the combination of medicine and Confucianism, which is consistent with the abstinence tendency of Neo-Confucianism in Song and Ming Dynasties.
One of Zhu Danxi's academic contributions is that "teaching is not eclectic". From Zhu Danxi's experience as a teacher, we can get enlightenment that studying medicine should not be "one-sided", but as Confucius said, "In a threesome, there must be a teacher who is different from a famous doctor". The second is "knowledgeable and good at observing similarities and differences."
Zhu Danxi has visited many teachers, and at the same time, he will sum up and sort out their differences well, and draw his own experience in combination with clinical practice. Third, he is good at writing biographies. The scope and efficiency of TCM inheritance are very limited, but academic ideas can be passed down from generation to generation by writing books.