| 圖書| 1. | Leopold, Aldo(1987)。A Sand County Almanac and sketches here and there。Oxford University Press。   | | 2. | Hume, David(2000)。A Treatise of Human Nature。Oxford University Press。 | | 3. | Hume, David、Beauchamp, Tom L.(1998)。An Enquiry concerning the Principles of Morals。Oxford University Press。 | | 4. | Callicott, J. Baird(1989)。In Defense of the Land Ethic: Essays in Environmental Philosophy。State University of New York Press。 | |