What did Zhouyi say?

Yi, Change and Zhouyi mainly expounded simple ancient thoughts from three aspects: image, number and reason. Later, it combined the dry branch with the five elements, fused the traditional civilization of China, and was listed as a Confucian classic. Ten Wings, edited by Confucius and others, further explained him and became the cornerstone of the philosophy of the descendants of the Yellow Emperor, which came down in one continuous line for thousands of years.

Elephant: The ancients observed natural phenomena, summed them up as hexagrams, used five elements to classify them, formed a simple dialectical method and materialism, and combined trunk and branches to form an ancient calendar to serve agricultural production.

Number: The hexagrams adopt binary system, which combines the Yin and Yang thoughts of Taoism, and the interpretation of the river map in Luoshu forms decimal mathematics.

Li: The laws of the development and change of natural things are explained by hexagrams. Astronomy, geography and personnel interaction. Formed the idea of harmonious coexistence between man and nature. And try to find out the universal connection of things in time and space, and guide people to practice objectively.

The concrete and far-reaching impact is

Text: Guaxiang was formed in the primitive tribal stage and played an important role in the formation of Chinese characters. The idea of "The Book of Changes" originated from it.

Calendar: Chinese civilization is a farming civilization, and the development process of calendar runs through it. The Dayan calendar in the Tang Dynasty is a milestone.

Mathematics: The use of binary has played an important role in the birth of modern mathematical calculus and computers, and decimal has developed into an abacus for abacus calculation.

History: Zhou Gong wrote an inscription. Because of its calendar function, it preserved the most authentic history from Shang Dynasty to Western Zhou Dynasty.

Medicine: The Book of Changes embodies the ancient world outlook. The idea of harmony between man and nature holds that the human body itself is a small universe, which provides a basic theory for Chinese medicine.

Divination: When carrying out social activities such as sacrifice, war, abdication and agricultural production, we should refer to the practical experience of historical records and regulate the time of social activities by consulting calendars and historical records.

Fortune-telling: Regarding the accuracy of prediction, the probability of modern mathematics tells us that when the factors affecting things are complex, we can only find their trends. The process of forecasting is actually a process of classifying and linearly planning the factors that affect events, on the one hand, sorting out the situation of things, on the other hand, solving problems. Xunzi said that we can think in a classified way, and we can check whether our ancestors did the same thing at this time today and whether they succeeded. We should use this way of thinking to think about problems, rather than using it to calculate our lives.