定言命令式：康德道德哲学研究：a study in Kant's moral philosophy 明理与敬义：康德道德哲学研究：a study on Kant's moral philosophy 伦理与存在：道德哲学研究：a study on moral philosophy a study in Kant's moral philosophy a study on Kant's moral philosophy 观物：邵雍哲学研究：a study on Shao Yong's philosophy 灵魂与统治：柏拉图政治哲学研究：a study of Plato's political philosophy 自律的发明：近代道德哲学史：a history of modern moral philosophy a study on moral philosophy 哲学：生存之爱：雅斯贝尔斯的元哲学研究：a study on Jaspers'metaphilosophy