In the Eastern Han Dynasty, there was a young man named Chen Fan who lived alone in a room and was filthy. Qin Xue, a friend of his father's, criticized him and asked him why he didn't dress up to meet the guests. He replied, "When a man is a man, he should clean up the world and settle down?" Qin Xue immediately retorted: "How can we sweep the world without sweeping a house?"

Come to think of it carefully, the reason why Fan Chen doesn't sweep the house is nothing more than disdain. It is valuable to be ambitious and want to "sweep the world". But we must regard not sweeping the house as a sign of "abandoning sparrows' small ambitions and embracing the ambition of a swan"

Everything is always from small to large, as the saying goes, many a mickle makes a mickle, and we must follow certain steps and procedures.

The original text of this sentence is not like this Its real original text is: "If one room is not treated, how can the country be in the world?" -"Habits" Liu Rong (Qing) Chapter 56 of The Biography of Wang Chen Mencius in the Later Han Dynasty is also recorded.

Chen Fan word ZhongJu, Runa Pingyu people also. In the fifteenth year of the reign of Fan, the father of Hedong, I tasted a quiet room and the courtyard was filthy. Father and friend Qin Xue, from the same county, came to wait for him and said, "Why don't you clean up for the guests?" Fan said: "The way of a gentleman is to clean the world and settle down." It is strange to know that he has clear world ambitions.