Make further progress (Wang Zhihuan)
The Analects of Confucius in the pre-Qin period: The Book of Songs says,' Brilliant is fine.' Song Zhuxi's note: "Those who treat bone angles with words must cut them off and discuss them again;" Those who treat jade both cut and grind it, refine it and seek its essence. "
Modest bamboo has curved leaves, and proud plums are not spent on its back.