Why is patriotism education an eternal topic in China traditional culture?

The traditional culture of China originated from our motherland.

So everyone has and must have patriotic feelings.

Patriotism education is an inevitable and eternal content (1).

China has a vast territory, a large population and a long history. The cultural heritage handed down from ancient times has a wide range of contents.

Du Fu's "There are millions of luxury houses, and all the poor people in the world are laughing",

Fan Zhongyan's "Worrying about the world first, then enjoying the world"

……

Is an example of patriotism.