Study of Wng Tan-nang's confucian thought Study of Shi Fu-Liang's political thought Study on Song Tao's economic thoughts Study on Zhan Ganquan thought Study of Gu Mingyuan's educational thought Study of Tao Yuanming's philosophy and thought Study on Lenin's legal thought Study on the dynamics of social thoughts Study of Dai Zhen's psychological thought Study of Hegel's legal thought