County exam, government exam and final exam. A scholar is also called "Cai Mao", which is a common name among the people. It is also used as a special name for school students, especially ostentatious scholars. Scholar is obtained through county examination, government examination and university examination. During the period of Emperor Wu of the Han Dynasty, "scholar" was one of the outstanding talents recommended by local officials to the court. The imperial examination in the Sui Dynasty initially set up three subjects: scholar, Ming Jing and Jinshi, among which scholar was the most difficult. In the Song Dynasty, people who took part in imperial examinations were called "Jinshi". During the Ming and Qing Dynasties, scholars who passed the college entrance examination and obtained the qualification for admission after having obtained the rural examination were called "Jinshi". Only by being a scholar in the exam can you be a juror in the exam and an official. Scholar-officials are the starting point of life, and scholar-officials are different from ordinary people. Because the dignity brought by the education of scholars can make the people respect. A scholar can open a private school to teach students. Although the scholar is not a state official and has no salary, he enjoys some privileges, such as not paying taxes, not joining the army, and even giving opinions or suggestions to local county officials.