Title: Kukka hyŏksin ŭl wihan sirhakchŏk mongmin sasang
Subjects: Korea, Civil service ethics, Politics and goverment, Sirhak school, Confucianism and state, Philosophy, Political science, History, Politics and government
Places: Korea
People: Yag-yong Chŏng (1762-1836)
Time periods: 19th century