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Moral nihilism (also known as ethical nihilism or amoralism) is the meta-ethical view that nothing is moral or immoral. For example, a moral nihilist would say that killing someone, for whatever reason, is neither inherently right nor inherently wrong. Moral nihilists consider morality to be make-believe, a complex set of rules and recommendations that may give a psychological, social, or economical advantage to its adherents, but is otherwise not in accord with fact or reality. 
Moral nihilism is distinct from moral relativism, which does allow for moral statements to be true or false in a non-objective sense, but does not assign any static truth-values to moral statements, and of course moral universalism, which holds moral statements to be objectively true or false. Insofar as only true statements can be known, moral nihilism implies moral skepticism.
Some prominent, recent moral nihilists are J. L. Mackie, Richard Joyce and historian of science Will Provine.
Forms of moral nihilism
According to Sinnott-Armstrong (2006a), the basic thesis of moral nihilism is that "nothing is morally wrong" (§3.4). There are, however, several forms that this thesis can take (see Sinnott-Armstrong, 2006b, pp. 32–37 and Russ Shafer-Landau, 2003, pp. 8–13). There are two important forms of moral nihilism: Error theory and Expressivism p. 292.
One form of moral nihilism is expressivism. Expressivism denies the principle that our moral judgments try and fail to describe the moral features, because expressivists believe when someone says something is immoral they are not saying it is right or wrong; expressivists are not trying to speak the truth when making moral judgments, they are simply trying to express their feelings. "We are not making an effort to describe the way the world is. We are not trying to report on the moral features possessed by various actions, motives, or policies. Instead, we are venting our emotions, commanding others to act in certain ways, or revealing a plan of action. When we condemn torture, for instance, we are expressing our opposition to it, indicating our disgust at it, publicizing our reluctance to perform it, and strongly encouraging others not to go in for it. We can do all of these things without trying to say anything that is true." p. 293.
This makes expressivism a form of non-cognitivism. Non-cognitivism in ethics is the view that moral statements lack truth-value and do not assert genuine propositions. This involves a rejection of the cognitivist claim, shared by other moral philosophies, that moral statements seek to "describe some feature of the world" (Garner 1967, 219-220). This position on its own is logically compatible with realism about moral values themselves. That is, one could reasonably hold that there are objective moral values but that we cannot know them and that our moral language does not seek to refer to them. This would amount to an endorsement of a type of moral skepticism, rather than nihilism.
Typically, however, the rejection of the cognitivist thesis is combined with the thesis that there are, in fact, no moral facts (van Roojen, 2004). But if moral statements cannot be true, and if one cannot know something that is not true, non-cognitivism implies that moral knowledge is impossible (Garner 1967, 219-220).
Not all forms of non-cognitivism are forms of moral nihilism, however: notably, the universal prescriptivism of R.M. Hare is a non-cognitivist form of moral universalism.
Error theory is built by three principles:
- There are no moral features in this world, nothing is right or wrong.
- Therefore no moral judgments are true; however
- Our sincere moral judgments try, but always fail, to describe the moral features of things.
Thus we always lapse into error when thinking in moral terms. We are trying to state the truth when we make moral judgments. But since there is no moral truth, all of our moral claims are mistaken. Hence the error. These three principles lead to the conclusion that there is no moral knowledge. Knowledge requires truth. If there is no moral truth, there can be no moral knowledge. Thus moral values are make-believe p.293.
Error theorists combine the cognitivist thesis that moral language consists of truth-apt statements with the nihilist thesis that there are no moral facts. Like moral nihilism itself, however, error theory comes in more than one form: Global falsity and Presupposition failure.
The first, which one might call the global falsity form of error theory, claims that moral beliefs and assertions are false in that they claim that certain moral facts exist that do not exist. J. L. Mackie (1977) argues for this form of moral nihilism. Mackie, for example, argues that moral assertions are only true if there are moral properties that are intrinsically motivating, but there is good reason to believe that there are no such intrinsically motivating properties (see the argument from queerness and motivational internalism).
The second form, which one might call the presupposition failure form of error theory, claims that moral beliefs and assertions are not true because they are neither true nor false. This is not a form of non-cognitivism, since moral assertions are still thought to be truth-apt. Rather, this form of moral nihilism claims that moral beliefs and assertions presuppose the existence of moral facts that do not exist. This is analogous to presupposition failure in cases of non-moral assertions. Take, for example, the claim that the present king of France is bald. Some argue that this claim is truth-apt in that it has the logical form of an assertion, but it is neither true nor false because it presupposes that there is currently a king of France, but there is not. The claim suffers from "presupposition failure." Richard Joyce (2001) argues for this form of moral nihilism under the name "fictionalism."
Moral nihilists in history
The philosophy of Niccolò Machiavelli is sometimes presented as a model of moral nihilism, but that is highly questionable. His book Il Principe (The Prince) was silent on moral matters, which shocked a European tradition that throughout the Middle Ages had inculcated moral lessons in its political philosophies. But silence about morality is not tantamount to outright nihilism. Machiavelli does say that the Prince must override moral reasons in favor of power-maintaining reasons of State, but he also says, particularly in his other works, that the successful ruler should be guided by Pagan, rather than Christian, virtues. Hence, Machiavelli presents an alternative to the ethical theories of his day, rather than an all-out rejection of all morality. Complicating the matter is the evidence that the whole of The Prince was written primarily to please the newly princely Medici family and thus may have presented ideas contrary to Machiavelli's actual views, his actual opinions being represented in, among other things, the Discourses on Livy.
Closer to being an example of moral nihilism is Thrasymachus, as portrayed in Plato's Republic. Thrasymachus can, however, be interpreted as offering a revisionary account of justice, rather than a total rejection of morality and normative discourse.
Criticisms of moral nihilism come primarily from moral realists, who argue that there are positive moral truths. Still, criticisms do arise out of the other anti-realist camps (i.e. subjectivists and relativists). Not only that, but each school of moral nihilism has its own criticisms of one another (e.g. the non-cognitivists' critique of error theory for accepting the semantic thesis of moral realism).
Still other detractors deny that the basis of moral objectivity need be metaphysical. The moral naturalist, though a form of moral realist, agrees with the nihilists' critique of metaphysical justifications for right and wrong. Moral naturalists prefer to define "morality" in terms of observables, some even appealing to a science of morality.[How to reference and link to summary or text]
- Moral relativism
- Moral skepticism
- Evolution of morality
- Psychological determinism
- Landau, Russ Shafer (2010). The Fundamentals of ethics, Oxford University Press. p. 292
- Glover, Jonathan (2000). Humanity: A Moral History of the Twentieth Century, 29, Yale University Press. "The Athenians presented hard amoralism as mere realism. Echoes of this have been heard many times since, for example in a comment by Stalin on the policies of countries at war: 'Whoever occupies a territory also imposes on it his own social system. Everyone imposes his own system as far as his army has power to do. It cannot be otherwise.'"
Bibliography and further reading
- Garner, Richard T.; Bernard Rosen (1967). Moral Philosophy: A Systematic Introduction to Normative Ethics and Meta-ethics, New York: Macmillan.
- Joyce, Richard (2001). The Myth of Morality, Cambridge University Press.
- Mackie, J. L. (1977). Ethics: Inventing Right and Wrong, Penguin.
- Shafer-Landau, Russ (2003). Whatever Happened to Good and Evil?, Oxford University Press.
- Garner, Richard T.; (1994). Beyond Morality. Temple University Press, .
- Shafer-Landau, Russ & Terence Cuneo (eds.) (2007). Foundations of Ethics, Blackwell Publishing Ltd.
- Sinnott-Armstrong, Walter (2006a). "Moral Skepticism," The Stanford Encyclopedia of Philosophy, Edward N. Zalta (ed.). (link)
- Sinnott-Armstrong, Walter (2006b). Moral Skepticisms, Oxford University Press.
- van Roojen, Mark (2004). "Moral Cognitivism vs. Non-Cognitivism," The Stanford Encyclopedia of Philosophy, Edward N. Zalta (ed.). (link)
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