Literature Reference: 子曰：“贤哉回也！一箪食，一瓢饮，在陋巷，人不堪其忧，回也不改其乐。贤哉，回也！” —— 《论语·雍也篇》 The Master said, 'Admirable indeed was the virtue of Hui! With a single bamboo dish of rice, a gourd dish of drink, and living in a mean narrow lane, while others could not have endured the distress, he did not allow his joy to be affected. Admirable indeed was the virtue of Hui!' Source from 'The Analects of Confucius, Yong Ye.'
颜: Visage, countenance.
回: Winding and meandering.
Meaning: Yan Hui, Confucius' beloved disciple, is renowned for his love of learning and contentment in poverty, symbolizing noble virtue and resilient spirit.