I have watched some lectures and videos by Yang Zhenning, and feel that he is like the crouching frog and flying bird in classical physics. The frog is focused on a specific field, while the bird views the overall picture. Therefore, I am curious about the split between Yang and Li Zhong, was it just a matter of authorship or a fundamental difference in values? Earlier, I read Chu Shijie's autobiography, which also had some subtle criticisms of Yang Zhenning. Where there are people, there are also disputes and gossip, and scientists are people too. I remember watching a video where Einstein told his son that 90% of people are water, and that the sea is composed of water. This reveals the essence of human nature. However, I think that if one understands physics, Yang without a doubt is a weighty figure in the history of physics, alongside Dirac, Heisenberg, and Fermi, a top-notch group of personalities...