research on Aristotle's political ethics 城邦的美德:亚里士多德政治伦理思想研究:research on Aristotle's political ethics research on Ransom's ontological criticism Commentary on Aristotle's politics The research of lenin's political ethics thought Thought of Marx's political ethics Research on the concept of harmonious medical ethics a commentary on Aristotle's politics research on Errol Morris' works research on some major theoretical issues