In "Enlightenment of Sound and Rhythm", "Wen Da is flooded, and he has already chanted the ice and cold water; Yonghe is liberal, and he knows that the young are better than the blue." What does it me

Wenda Yantong has already lamented the ice and cold water: "Book of Tang" records: "Gai Wenda" studied under "Liu Zhuo", and later "Wenda" Yantong Yantong was far better than Liu Zhuo. "Liu Zhuo", someone once said: "Ice is born in water and cold in water."

·Yonghe liberal arts can tell that young people are better than blue people: "Northern History? Biography of Li Mi": Mi's first teacher was "Kong Fan". A few years later, Fan returned to Mi to seek employment. His fellow students said: "The clear becomes blue, and the blue fades away from the green; the teacher He Chang is in the Ming Jing."

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