Idiom data of keeping promises.

Mao Zedong's two daughters, CoCo Lee and Li Ne, were born in Yan 'an during the War of Resistance against Japanese Aggression period. Among them, "sensitivity" and "neatness" come from "a gentleman wants to be cautious in words but sensitive in deeds" in the Analects of Confucius. From the names given to her daughter, we can understand that Mao Zedong is a person who wants her to do more practical things and talk less when she grows up.