In the past we have always had a deep attachment for the ways of China and all of our institutions have been modeled upon those of T'ang. But our country occupies a different geographical location and our people's character is different from that of the Chinese. Hence, there is no reason to strain ourselves unreasonably to copy the Chinese way. [Mongolia] is a nation of savage beasts, and its language and customs are also different. Its dress and institutions should never be copied. What is the main idea of this passage?

The Mongols have an inferior civilization.
The Japanese should never be copied.
Korea doesn’t need to imitate the Chinese culture.
T’ang culture should always be copied before Mongol culture.