The article tells that Baoyu became interested in modern mathematics and was obsessed with geometry, algebra and other knowledge, believing that numbers can reveal the laws of all things; Qin Zhong paid attention to philosophy and thought about issues such as the meaning of life and human nature. The two often exchange and debate on this topic, ranging from daily trivial matters, truths in books to understanding of the world. On the Mid-Autumn Festival night, they realized that mathematics and philosophy are like two sides of a coin, respectively related to the rules of heaven and earth and the temperature of people's hearts, and both are indispensable. They also agreed to learn from each other, showing the collision and integration of different cognitive perspectives.
