Because it is a rhetorical question, it also strengthens the momentum of the article.
Prove that the humble room is not humble with Confucius' words.
The above three authors prove that the reason why the Humble Room is not simple is that the environment is beautiful, the guests coming and going are elegant, and the host is elegant in taste, and the theme of the article is emphasized again.
It highlights the author's noble and proud sentiment and poor and happy taste.
Explanation: What's the matter? What's wrong with it? Auxiliary words, which have no practical meaning, are symbols of preposition objects. The whole sentence means "What's the matter?" See "The Analects of Confucius Zi Han": "Zi wants to live in Jiuyi, or Yue; So what about ugliness? Confucius said,' How can a gentleman be humble if he lives there? "Confucius believes that although Jiuyi is low, there are gentlemen living in it, and it is not low.