How to answer the next sentence?

Source: Book of Rites Qulishang by Dai Sheng in the Western Han Dynasty, original text:

Courtesy is reciprocated. It is indecent not to come; It is also impolite to come and not go.

Politeness advocates communication. It is impolite to give someone a favor and not get it in return; It is impolite for others to help themselves without returning.

Show kindness to others, you should respond in a friendly way, otherwise it is impolite.

The stroke order of each word observed in calligraphy

Extended data:

Explanation:

China culture is characterized by "ceremony". Its function is embodied in two aspects: improving personal moral cultivation and cultivating national spirit. The Book of Rites is a must-read book for ancient scholars, and it is also an important legal book in ancient China. As a compilation of Confucianism, The Book of Rites is all-encompassing, vivid and fluent, and all the lines reflect the beauty of Chinese etiquette!

Festivals are expensive and there are things to offer. It's not a matter of politeness to just go or not, or to come or not. In the communication between countries, groups, people and friends, politeness attaches great importance to reciprocity. Everyone should adopt the same attitude and etiquette norms, which is customarily called "reciprocity".