Đạo đức được xem là khái niệm luân thường đạo lý của con người, nó thuộc về vấn đề tốt-xấu, hơn nữa xem như là đúng-sai, được sử dụng trong 3 phạm vi: lương tâm con người, hệ thống phép tắc đạo đức và trừng phạt đôi lúc còn được gọi giá trị đạo đức. | Sentience and the Utilitarian Calculus 71 jects. If it really were possible he says to save many lives by an experiment that would take just one life and there were no other way those lives could be saved it might be right to do the experiment. 57 . Objections to the Sentience Only View The conclusions that Singer draws from the principle of equal consideration entail that many of us should change our daily behaviour especially our diets. Yet these conclusions are more consistent with practical necessity than are some of the implications of the Life Only view. While no one can exist without causing the deaths of many living things most people could lead satisfactory lives without consuming animal products that are produced in inhumane Some people gain important medical benefits from the continued use of animals in biomedical research but equivalent expenditures on education housing and other social needs might produce as great an overall improvement in human welfare with less nonhuman suffering. Unfortunately the Sentience Only view has implications which are more troubling than the ones that Singer emphasizes. There are four potentially fatal objections to the principle of equal consideration. Three of these the environmentalist Humean feminist and human rights objections spotlight problematic consequences of the view that sentience is the only valid criterion of moral status. The fourth objection involves some implications of the principle of equal consideration which I argue are impossible to reconcile with the demands of practical necessity. The Environmentalist Objection Many environmental ethicists reject the Sentience Only view because it denies moral status to plants species and other non-sentient elements of the On the Sentience Only view we may have 57 Ibid. 78. 58 There are however questions about the nutritional adequacy of a vegan diet for pregnant and nursing women and young children. See Kathryn Paxton George Should Feminists