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简介：Fang Yizhi was a famous philosopher and scientist in the Ming Dynasty. He had a rich family background and learned from the strengths of others. He advocated the combination of Chinese and Western medicine. He wrote extensively on literature, history, philosophy, geology, medicine, and physics. After the fall of the Ming Dynasty, he continued various anti-Qing activities. It is said that he was the founder of the Tiandihui. In the tenth year of Kangxi's reign, he sank into the Yangtze River and died for his country.