The nickname of tuition is bundle. In ancient times, when students and teachers met for the first time, they all gave gifts to show their respect. This is called "book debate". It was implemented as early as Confucius' time. Tuition is "several bundles", the bundle is bacon, and later it is basically the teacher's fee, which can be understood as tuition. In the Tang Dynasty, the school still adopted the binding ceremony, which was clearly stipulated by the state, but the weight of gifts varied according to the nature of the school. When accepting this gift, teachers must also observe considerable etiquette. Sending Liang Xiu shows the students' respect for their teachers.