西方文學十五講 = Fifteen lessons of western literature
紫色清華
魯迅作品的十五堂課
現代西方哲學的十五堂課 = Modern western philosiphy
通俗文學的十五堂課 = Popular literature
歐洲文明的十五堂課 = Civilization of the Europe
哲學修養的十五堂課 = Philosophy training