A famous poem by Zheng Xie (Zheng Banqiao) with the lines: Firmly rooted in the green mountains, never letting go; Its roots sink deep into the shattered rock. Though battered by countless blows, it remains steadfast; Let the winds come from east, west, south, or north. Zheng Qingqiu plagiarized this poem word for word and presented it as her own composition in front of Prince Duan.
