Confucius' father is called Ge (a word, and Ge is a name), and his mother is called Yan Zhizai. Changhong is well-read, familiar with astronomy, meteorology, refined temperament and calendar, and often deals with astrology with King Zhou Jing. Confucius admired his talent for a long time. On Tuesday (5 18 BC), I made a special trip to Zhou Guo to visit Changhong, and humbly asked for the similarities and differences between Shaole and Wushu. Another teacher is Shi Xiang. Shi Xiang was a guqin player in the Spring and Autumn Period and worked as a musician in Weiguo. In fact, it was Confucius who made him more famous because he was Confucius' teacher. In about 496 BC, Confucius left Shandong to defend the country. When he heard that Shi Xiang was a musician, he worshipped him as a teacher and studied the piano music King of Cao Wen. In fact, according to Confucius' theory, three people should have a teacher, so even a child can be said to be his teacher, and Laozi is his teacher.