"God is above the earth" is the personality ideal of China people: there is an idealistic sky that can soar freely without compromising many rules and obstacles in the real world; He also has the ability to be down-to-earth and expand his behavior in this land. Yu Dan

Fractal geometry not only shows the beauty of mathematics, but also reveals the essence of the world and changes the way people understand the mysteries of nature. It can be said that fractal geometry is a kind of geometry that truly describes nature, and the research on it has greatly expanded the cognitive field of human beings. Zhou Haizhong