Secondly, we should have the spirit of doubt and discrimination, and demonstrate and solve it in many ways. Thirdly, we must apply what we have learned and master it skillfully. You can't learn by rote, you can't just take what you have learned orally or concentrate on nothing, you should apply what you have learned.
Metaphysics is a philosophical trend of thought in Wei and Jin Dynasties. The word "Xuan" here comes from a sentence in Laozi, "Xuan, both mysterious and mysterious." Metaphysics refers to a philosophical trend of thought that appeared in Wei and Jin Dynasties.
Metaphysics is the study and explanation of Laozi, Zhuangzi and Zhouyi, which came into being in Wei and Jin Dynasties.
Metaphysics is a trend of thought advocating Lao Zi and Zhuang Zi in China from Wei Jin to the middle of Song Dynasty. It can also be said that Confucianism is a new way of expression.