In fact, for more than 1000 years, theories such as "University" and "Doctrine of the Mean", including Neo-Confucianism in Song and Ming Dynasties, have all been wrong in origin and have not found their source. Where does the concept of adults in universities come from? Great scholars learn from adults. The so-called adults come from the divination in the Book of Changes (adults are in harmony with heaven and earth, with the sun and the moon, with the four seasons, and with ghosts and gods). )。 But how, my Lord? The way of a university lies in its clear virtue. See here, you are an adult, a saint and a monk. The doctrine of the mean comes from the words of Kun Gua in the Book of Changes, "Huang Zhong makes sense and is in the right place". "Huang Zhong thomas lee" means mediocrity. The basic roots of university and the doctrine of the mean come from the meaning of heaven and earth and the meaning of heaven and earth's virtue. University is the realm of practice and demonstration from a rational point of view. From the physical evidence, the doctrine of the mean is reasonable. The old gentleman studied Neo-Confucianism, but he couldn't find the root. He still talked about Confucianism.