Where does the phrase "people who don't study for one day are vulgar, but people who look in the mirror for two days are disgusting" come from?

"People don't study, one day they are dusty, two days they are tired in the mirror, and three days they are tasteless." If people don't study, one day they will become tacky, and the next day they will look in the mirror with a mean face that makes people disgusted. On the third day, talking with people will become meaningless and life will become boring.

Source: The Nightmare Shadow, a collection of essays by Zhang Chao in the Qing Dynasty, was written during the reign of Kangxi. The style of this book is a pithy judgment, and the content is all-encompassing.

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Appreciation of A Nightmare:

From the contents of this book, you can see the author's profound knowledge and elegant taste. The trivial and ordinary things in life, through his description, show interest from simplicity and elegance from ordinary. Juck Zhang valued the truth and interest of life, emphasized temperament, pursued interest, and lived a free life. He has a keen observation and perception of life, and his book Shadow of Dreams is a description of beauty.

"Nightmare Shadow" is another essay by Zhang Chao after "A New Record of Jade Beginning". Compared with New Records of Yuchu, this book adds more personal style of Zhang Chao and is more inclined to essays. I just finished reading it these days. It's good and refreshing. I think Zhang Zhongxing's Noisy Words is a little influenced by Nightmare Shadow.

Baidu encyclopedia-nightmare shadow