Introduction to Liu Yong's Couplet: Liu Yong, a great scholar in the Qianlong Dynasty of the Qing Dynasty, had a close relationship with the Wu family. He once gave a couplet to his friends: "I forgot my charm when I was studying, but I left my poem to say goodbye." If you are successful in reading, your friendship will last forever. Liu Yong's inscribed couplet is a treasure of the ancient house and hangs in the third entrance hall.