Confucius, the founder of Confucianism, famously said, "Gentlemen are harmonious but different, while villains are not harmonious." This means that in dealing with people, the correct way should be to refuse to agree and reach an understanding in mutual argument and defense. In ancient China, "harmony without difference" was also an important principle to deal with the relationship between different academic schools and different cultures, and it was also the driving force, way and basic law for the development of academic culture.

Datong society is the last ideal society or the highest stage of human society in China people's ideological tradition.

The trip to the avenue is also for the public, choosing talents and talents, and honesty. An old friend is not only a relative, but also an only child, so that he can get a proper old age, be useful to the young, be widowed, lonely and disabled, with one for men and one for women. If the goods are abandoned on the ground, there is no need to hide them on yourself; You don't have to do it for yourself. Therefore, it is called "Datong" to seek closure but not prosperity, and thieves do not do it, so leaving the house is not sealed.

Harmony is different, Datong society is two concepts, which are not contradictory and can coexist.