1Webster' s Ninth New Collegiate Dictionary, Merriam - Webster Inc. 1990.
2The Nicomachean Ethics Ⅱ 6, Translated by W. D. Ross, Oxford University Press, 1980.
3Basic Writings of Saint Thomas Aquinas, Volume Two Ⅰ 中国社会科学出版社,1999年,Q55 Art4.
4Kants Werke, VI, Waher de Gruyter& Co. , Berlin 1965, P380 .P394.
5Kants Werke, V ,Walter de Gruyter& Co. , Berlin 1968 ,P32 -33.
6After Virtue, University of Notre Dame Press, 1981, P178.
7The Nicomachean Ethics, Translated by W. D. Ross,Oxford University Press, 1980, Ⅰ13,Ⅱ8,Ⅱ4,Ⅵ11、Ⅱ1.
8Basic Writings of Saint Thomas Aquinas, Volume Two Ⅰ 中国社会科学出版社,1999年,Q55 Art4、Q59A1.
9The Nicomachean Ethics,Translated by W. D. Ross, Oxford University Press, 1980, Ⅱ 1 Basic Writings of Saint Thomas Aquinas, Volume Two Ⅰ 中国社会科学出版社,1999年,Q55A3.
