Bachelor Li Shiheng likes to collect books. There is an authentic calligraphy work by a Jin man, which is in the possession of his son Li Xu. The Chang'an stone master was once borrowed from Li Jun. I copied a copy and presented it to Duke Wen Lu as a genuine work. One day, Lu Gong met with guests, and Li was present. When he saw this post, he was surprised and said: "This post belongs to my family. Why did it suddenly come here? I hurriedly asked someone to go home." He wanted to verify it before he knew it. What Wen Yanbo collected was a copy. Li Cai found out that he was sent to Bai Lugong by Shi Jun. The audience members all said that what Wen Yanbo collected was the original work, while what Li collected was a copy. Li Cai sighed and said: "The enemy is outnumbered and we are outnumbered, how can we stretch out? Today I know that I am alone."