What is the debate about Yi Xia?

Explaining the difference between Yi and Xia is actually a question of national cultural identity. However, this national cultural identity has an important influence on the formation and development of a country with national unity. As early as ancient times, people began to distinguish Yi and Xia by regional relations; During the Spring and Autumn Period and the Warring States Period, with the geographical relationship between China and Yi being broken, the culture of propriety and righteousness became the standard to distinguish Yi from Xia. After the rise of Gongyangxue in Han Dynasty, from Gongyangxue to Dong Zhongshu to He Xiu, they were all keen on the distinction between Yi and Xia. It is through this systematic exposition that the debate between Yi and Xia became an important part of the theoretical system of Gongyangxue in Han Dynasty, and served the needs of the unified political rule in Han Dynasty.

It shows that after western missionaries came to China in the late Ming Dynasty, Matteo Ricci spread science and theory in the cloak of Confucianism, which was widely welcomed by scholars in the late Ming Dynasty. They regard him as a mentor and friend, so Qu further put forward a new humanistic standard in his book Xiao Yan Waishi: "He is faithful and wise, although he is far away from home, he is also in summer." If the husband is vague, gurgling and shameless, although close to the shoulder, Rong Di is also. "It can be seen that the so-called' the distinction between the summer and the summer' is actually the distinction between morality, that is, the distinction between civilization and barbarism.