There are three main contributions of Confucius in his life: First, sorting out ancient books and records, so that a number of documents such as The Book of Songs, Shangshu and Yijing can be handed down to future generations. Second, the Confucian School was founded, and the Confucian ideology system was established, which set a benchmark for China traditional culture. Third, private schools were set up, which made the style of study move down, broke the single school-running mode of "learning in government" and trained a large number of talents at that time. At the age of 30, Confucius began to establish civilian education, set up altar teaching and recruit students. He has taught more than 3,000 students in his life, including "70 who are proficient in six arts". Among outstanding students, each has his own strengths. Virtue: Yan Yuan, Min Ziqian, Ran Boniu, Zhong Gong. Word: kill me, salute. Politics: You Ran, Lu Ji. Literature: Freedom in Xia Zi. Many students mainly come from Qi, Shandong, Chu and Wei, as well as many students from small countries and even students from Jin. It can be said that the world is full of peaches and plums. Confucianism, founded by Confucius, spread in all directions through its disciples and played a great role in the development of science, technology and culture in various countries. According to "Han Fei Zi Xian Xue", eight schools of Confucianism were formed after Confucius: "Zi Ru Zhang Zhiru, Zi Ru Yan Shi, Zi Ru Meng Shi, Zi Ru Shi, Zi Ru Zhong Liang Shi and Zi Ru Shi". These eight schools of thought have become a powerful force to inherit and continue to carry forward Confucianism in the "contention of a hundred schools of thought".