Core Viewpoint - The article highlights the cultural and artistic value of stamps, particularly focusing on the exhibition "Qingfeng Wanli - Ancient Chinese Integrity Culture" at the National Museum of China, which showcases stamps that tell stories of integrity and moral values [1]. Group 1: Stamp Exhibition - The exhibition features a special set of stamps titled "Qingzheng Lianjie (I)", released by China Post in June 2018, which includes four stamps depicting well-known integrity stories from ancient China [2]. - One of the stamps, "Not Greedy as Treasure," illustrates the story of the virtuous minister Zihan from the Spring and Autumn period, who refused a precious jade gift, emphasizing the value of integrity over material wealth [2][3]. - Another stamp, "Yang Xu Hanging Fish," depicts the integrity of Yang Xu, a governor known for his frugality and refusal to accept gifts, which has become a widely recognized moral tale [5][7]. Group 2: Historical Figures and Integrity - The article recounts the story of Sima Qian, a historian from the Han Dynasty, who rejected a pair of exquisite jade discs to maintain his impartiality and integrity as a historian [4]. - The narrative of "Not Greedy as Treasure" is further supported by a commentary from "Lüshi Chunqiu," which emphasizes that wise individuals prioritize moral teachings over material possessions [3]. - The story of Bao Zheng, known for his integrity, is also highlighted, particularly his refusal to accept gifts during his tenure as the governor of Duanzhou, which has become a part of his legacy [9][10].