2. Guan zhong. Guan Zhong (about 723 BC-645 BC) was born in Yingshang (now Yingshang County, Anhui Province). China was a famous economist, philosopher, politician and strategist in ancient times, a representative figure of legalists in the Spring and Autumn Period, and a descendant of Zhou Muwang. In the thirty-third year (698 BC), he began to assist his son Jiang Jiao. In the first year (685 BC), he was recommended by Bao as the prime minister and was honored as "Guan Zhong". During his tenure, he carried out major reforms in China, making the strong soldiers rich. Respecting the king and conquering foreigners and nine kings conquering the world made Qi Huangong the first of the five tyrants in the Spring and Autumn Period. Qi Huangong died in the forty-first year (645 BC), and posthumous title paid tribute to him. The late Buddha was called Guan Zi, known as "the pioneer of legalism", "the teacher of saints", "the protector of Chinese civilization" and "the first phase of China".
3. Shang Yang. Shang Yang (about 395 BC-338 BC) was a statesman, reformer, thinker and representative of Legalism in the Warring States Period. He is a native of Wei (now Liangzhuang Town, Neihuang County, Anyang City, Henan Province) and a descendant of the king of Wei. Her surname is Gong, so she is also called Wei Yang and Gong Sunyang. Later, due to his meritorious service in the Hexi Campaign, he was named fifteen cities Shang Jun, so he called it Shang Yang. Shang Yang made A Qin rich and strong through political reform, which is called "Shang Yang Political Reform" in history. Politically, Shang Yang reformed Qin's household registration, rank, land system, administrative divisions, taxation, weights and measures, and folk customs, and formulated harsh laws. Economically, Shang Yang advocated attaching importance to agriculture and restraining commerce, and rewarding agriculture and weaving. Militarily, Qin Jun, commander-in-chief of Shang Yang, recovered Hexi. In 338 BC, Qin Xiaogong died and his son Qin Huiwen succeeded him. In the same year of Qin Xiaogong's death, Shang Yang was accused of rebellion by Gongzi Qian. He was defeated and died in Tong Di, and his body was taken back to Xianyang, where he was publicly displayed after being cracked.
4. Zu Chongzhi. Zu Chongzhi (429-500) was born in Wen Yuan. Jiankang (now Nanjing) was an outstanding mathematician and astronomer in the Southern and Northern Dynasties. Zu Chongzhi studied natural science all his life, mainly contributing to mathematics, astronomical calendar and mechanical manufacturing. On the basis of exploring the accurate method of pi pioneered by Liu Hui, he calculated pi to the seventh place after the decimal point for the first time, that is, between 3. 14 15926 and 3. 14 15927. His "ancestral rate" has made great contributions to mathematical research. It was not until the 6th century A.D./KLOC-that the Arab mathematician Al Cassie broke this record. The Daming Calendar written by him was the most scientific and progressive calendar at that time, which provided a correct method for future astronomical research. His main works are In the Frontier, Composition, Explaining Words, Li Yi and so on.
5. Zhu Zhu (1130.9.15—1200.4.23), with a dark personality, was called Huian, later called Huiweng and called Zhu Wengong. Originally from Wuyuan County, Huizhou Prefecture (now Wuyuan, Jiangxi Province), he was born in Youxi, Nanjian Prefecture (now Youxi County, Fujian Province). Famous Neo-Confucianist, thinker, philosopher, educator, poet, representative of Fujian School, master of Confucianism, Buddha named Zhu Xi. Zhu is the only person who is not a disciple handed down by Confucius, but likes to visit the Confucius Temple. He ranks among the twelve philosophers in Dacheng Hall and is worshipped by Confucianism. Zhu is a student, a disciple of Cheng Er (Cheng Hao, Cheng Yi), and he is also called a school with Cheng Er. Zhu's Neo-Confucianism had a great influence on the Yuan, Ming and Qing Dynasties and became the official philosophy of the three generations. He is another person after Confucius in the educational history of China.