What poems are there to express people's integrity?

As early as the Six Dynasties and the Liu and Song Dynasties, the poet Bao Zhao used words such as "the jade pot is clear with ice" and "singing with white heads" to describe the noble and innocent character. Since Yao Chong, the prime minister of Kaiyuan, wrote Kuai Jie, poets in the prosperous Tang Dynasty, such as Wang Wei, Cui Hao and Li Bai, all praised this aboveboard character. Wang Changling's letter gradually brought information to relatives and friends in Luoyang, not the usual peaceful bamboo newspaper, but conveyed it.