Zou Yan was the founder and representative of Yin and Yang in the Warring States Period, Han nationality, and a native of Qi at the end of the Warring States Period. The year of birth and death is unknown. It is inferred that he was born around 324 BC, died in 250 BC and lived for more than 70 years. According to legend, the cemetery is in Haozhuang, Xianggongzhuang Town, Zhangqiu today. His main theories are "The Theory of Five Virtues" and "The Theory of Kyushu", and he is also a famous scholar of Jixia Academy. Because of his "heaven is exhausted", people called him "talking about heaven" at that time, also known as Zou Zi. He was born after Mencius and was contemporary with GongSunLong and Lv Zhonglian. In Qi Xuanwang, Zou Yan studied Confucianism under Gong Xue, Xia Ji, and then changed to attack the theory of Yin-Yang and Five Elements. However, Confucianism is the ultimate goal. "Zou Yan to Confucianism, don't have to, that is, from beginning to end, died in name. ..... Zou Zi's technique of making changes also belongs to benevolence and righteousness (On Salt and Iron and Confucianism, Volume 11). "Zou Zi later Confucianism and Mohism don't know the vastness of heaven and earth, and Zhao Kuangzhi's way will be 10% off; Watching a corner, you want to know 10,000 square meters, but you still want to know how to compete without equality, and you want to know Fiona Fang without rules. So, push the luck of the Great Sage from the beginning to the end to symbolize the princes and princes ... "(On Salt and Iron and Zou, back to 53). It can be seen that whether studying Confucianism or attacking Yin and Yang studies, Zou Yan's purpose is seeking truth from facts, which fully embodies his spirit of saving the world and helping the people. King Qi Min's imperial movement later failed. Because of the situation at that time, he had to accept Su Dai's suggestion, remove the emperor's name and become king again. But his ambition is getting bigger and bigger, and he has developed to the point of being an emperor, becoming more and more arrogant and violent. "On Salt and Iron: On Confucianism" said: "After Min Wangfen II was fierce, ... the people were unbearable, and Confucianism did not follow, and each dispersed. Shen Dao and meson die, Tian Pian is like Xue, on the right. There are no good ministers in it, and the ministers plot to cut it. " Biography of Historical Records and Meng Changjun also said: "King Qi Min wanted to go to Meng Changjun because he destroyed the Song Dynasty. Meng Changjun's fear is just like Wei's. Wang thought that Xi made friends with Qin and Zhao, and died in Ju with Yan, so he died. " Just at this time, Yan Zhaowang accepted talents and built a palace for Guo Kun to show respect for the sages. For a time, talents from all over the world rushed to swallow. In this context, Zou Yan abandoned Qi to Yan and published it in Shuo and Dao. "The prince said,' I am willing to learn from myself without a teacher.' Guo Kun said:' Wang Cheng wants to carry forward Taoism, so please make way for everyone in the world.' Therefore, the prince of Yan often takes Guo Kui's seat in the south. After living for three years, perilla heard about it and returned to Yan from Zhou; Zou Yan heard that from Qi Hui Yan; Le Yi heard of it, from Zhao Zhiyan, Qujing heard of it, from Chu to Yan, and four sons arrived, and the fruit was weak and strong. "It is reported that when Zou Yan went to Yan State, Yan Zhaowang personally swept the floor for him with a broom, fearing that dust would fall on him. Liu Xin recorded this incident, saying, "The Biography of Fang said that Zou Zi was in Yan, afraid of the princes, and was greeted by all the suburbs, holding him with wisdom" (Selected Works, Volume 40, Memoirs of Ruan Ji, Volume 45, Yang Xiong's Set Theory and Notes on Li Shanqi). Wang Chong also said in On the Balance: "Zhao Yan is a wise man." And then learn from Zou Yan. Ban Gu mentioned that Zou Yan was "the teacher of Yan Zhaowang" in Han Shu Yi Wen Zhi. The Biography of Mencius in Historical Records records in more detail: "(Zou Yan) is like Yan, the pioneer of Yonghui. Please set up a disciple's seat and take up the post, build the Jieshi Palace, and visit the teacher in person. " Zou Yanzhu wants to engage in development and production in Yan. The collection of literary talents, the valley under the Ministry of Water contains: "Liu Xiang said in Bielu that the legend of the alchemist: Zou Yan is in Yan, Yan has a valley, the land is beautiful and cold, and there are no five hubs. Zou Zi lived there, blew the law and was angry, but he was born. Today he is called Sugu. " Wang Chong also said in "On Warm and Cold Articles": "Yan has a cold valley, but not five kinds. Zou Yan blowing method, cold valley can be planted. Yan people are among them. The number is sugu. " In 284 BC, Yan Zhaowang took Le Yi as the general and joined forces with Qin, Chu, Han, Zhao and Wei. Qi is the hometown of Zou Yan. Although he hated the rulers who forced him to leave his hometown, he always loved the land where he was born and raised. He didn't and can't take part in the war. This is likely to constitute an excuse for falsely accusing him of going to jail in the future. After Yan Zhaowang's death, Hui Wang succeeded to the throne. Unlike Zhao Haoqi, King Hui didn't trust the old courtiers of the previous dynasties. At this time, the situation of Yan Qi reversed, and Zou Yan was a Qi person, so he listened to rumors and arrested Zou Yan. Liu Yuchuan of the later Han Dynasty quoted Huainanzi as saying, "Zou Yan is loyal to Yan Wanghui. Slap it left and right, the king binds it, (Yan) cries, and the frost in May. " This was an unjust case, which was finally solved. At this time, King Qi Min was dead, King Qixiang had succeeded to the throne, and Gong Xue, Xia Ji, had regained its former prosperity. Zou Yan, who suffered great changes, missed his home, anxious to return, and he returned to his hometown. Later, as an envoy, he met Ping Yuanjun in Zhao, and regarded him as Gong Sunlong who argued for the truth. Historical Records Biography of Yu Qing in Ping Yuanjun said: "Ping Yuanjun befriended Gong Sunlong. Gong Sunlong is argumentative and difficult to understand. Zou Yan passed Zhao, and the best word is the lack of Gong Sunlong. " In his later years, Zou Yan seemed to be an official of the Prince of Yan, and his post-war activities from 25 BC to 250 BC were not recorded. Maybe he died around here.