Roth,Harold D.A Companion to Angus C.Graham’s Chuang Tzu:The Inner Chapters.Honolulu:University of Hawai’i Press,2003.
Said,Edward W.Orientalism.London:Routledge and Kegan Paul,1978.
Schoenewolf,Gerald.The Way:According to Lao Tzu,Chuang Tzu,and Seng Tsan.California:Jain Publishing Company,2000.
Schwartz,Benjamin I.The World of Thought in Ancient China.Cambridge,Mass.:Belknap Press of Harvard University Press,1985.