Please answer 1993 college entrance examination poetry appreciation question: writing background of bamboo and stone.

Writing background of bamboo and stone: The poet Zheng Banqiao is a famous painter, especially the bamboo he painted. At the age of 73, the author wrote a picture of bamboo and stone in April, which is a poem he inscribed on the bamboo and stone painting. The poet praised not the softness of bamboo, but its fortitude. This poem is a portrayal of his pride and integrity.

During his time as an official, Zheng Banqiao did many good things that benefited the people and won their love. However, when he asked for relief in the famine year, he offended the magistrate and the local gentleman. He is upright and upright, caring for the people, and has the lofty character of "getting rid of mud and not touching". Ashamed of hunching over, he despised the powerful, unsealed, resolutely resigned and returned to Yangzhou to sell paintings for a living. The author is 73 years old and wrote "Bamboo Stone Map" in April. This poem is an inscribed poem, inscribed on the author Zheng Banqiao's own Bamboo and Stone Map. In praising the tenacity and tenacity of Yanzhu, this poem implies that the author despises the tenacity of the secular world.