Moral nihilism

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Moral nihilism (also known as ethical nihilism) is the meta-ethical view that nothing is morally right or wrong.

Moral nihilism is distinct from moral relativism, which allows for actions wrong relative to a particular culture or individual. It is also distinct from expressivism, according to which when we make moral claims, "We are not making an effort to describe the way the world is ... we are venting our emotions, commanding others to act in certain ways, or revealing a plan of action" (Shafer-Landau 2010, pp. 292–293).

Nihilism does not imply that we should give up using moral or ethical language; some nihilists contend that it remains a useful tool.

Forms of nihilism

Moral nihilists agree that all claims such as 'murder is morally wrong' are not true. But different nihilistic views differ in two ways.

Some may say that such claims are neither true nor false; others say that they are all false.

Nihilists differ in the scope of their theories. Error theorists typically claim that it is only distinctively moral claims which are false; practical nihilists claim that there are no reasons for action of any kind; some nihilists extend this claim to include reasons for belief.

Ethical language: false versus not truth-apt

J. L. Mackie argues that moral assertions are only true if there are moral properties, but because there are none, all such claims are false (Mackie 1997).

Other versions of the theory claim that moral assertions are not true because they are neither true nor false. This form of moral nihilism claims that moral beliefs and assertions presuppose the existence of moral facts that do not exist. Consider, for example, the claim that the present king of France is bald. Some argue that this claim 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".

The scope question

Error theory is built on three principles:

  1. There are no moral features in this world; nothing is right or wrong.
  2. Therefore, no moral judgements are true; however,
  3. 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 purely chimerical (Shafer-Landau 2010, pp 292–293).

Arguments for nihilism

Argument from queerness

The most prominent argument for nihilism is the argument from queerness.

J. L. Mackie argues that there are no objective ethical values, by arguing that they would be queer (strange):

If there were objective values, then they would be entities or qualities or relations of a very strange sort, utterly different from anything else in the universe (Mackie 1977, p. 38).

For all those who also find such entities queer (prima facie implausible), there is reason to doubt the existence of objective values.

In his book Morality without Foundations: A Defense of Ethical Contextualism (1999), Mark Timmons provides a reconstruction of Mackie's views in the form of the two related arguments. These are based on the rejection of properties, facts, and relationships that do not fit within the worldview of philosophical naturalism, the idea "that everything—including any particular events, facts, properties, and so on—is part of the natural physical world that science investigates" (1999, p. 12). Timmons adds, "The undeniable attraction of this outlook in contemporary philosophy no doubt stems from the rise of modern science and the belief that science is our best avenue for discovering the nature of reality" (Timmons 1999, pp. 12–13).

There are several ways in which moral properties are supposedly queer:

  • our ordinary moral discourse purports to refer to intrinsically prescriptive properties and facts "that would somehow motivate us or provide us with reasons for action independent of our desires and aversions"—but such properties and facts do not comport with philosophical naturalism (Timmons 1999, p. 50).
  • given that objective moral properties supposedly supervene upon natural properties (such as biological or psychological properties), the relation between the moral properties and the natural properties is metaphysically mysterious and does not comport with philosophical naturalism (p. 51).
  • a moral realist who countenances the existence of metaphysically queer properties, facts, and relations must also posit some special faculty by which we have knowledge of them (Timmons 1999, p. 51).

Responses and criticisms

Christine Korsgaard (1996) responds to Mackie by saying:

Of course there are entities that meet these criteria. It's true that they are queer sorts of entities and that knowing them isn't like anything else. But that doesn't mean that they don't exist.... For it is the most familiar fact of human life that the world contains entities that can tell us what to do and make us do it. They are people, and the other animals. (Korsgaard, p. 166)

Other criticisms of the argument include noting that for the very fact that such entities would have to be something fundamentally different from what we normally experience—and therefore assumably outside our sphere of experience—we cannot prima facie have reason to either doubt or affirm their existence; therefore, if one had independent grounds for supposing such things to exist (such as, for instance, a reductio ad absurdum of the contrary) then the argument from queerness cannot give one any particular reason to think otherwise. An argument along these lines has been provided by e.g. Akeel Bilgrami (2006).

Argument from explanatory impotence

Gilbert Harman argued that we do not need to posit the existence of objective values in order to explain our 'moral observations' (Harman 1977, chapter 1).

See also


  • Bilgrami, Akeel (2006). Self-Knowledge and Resentment, Harvard University Press.
  • Harman, Gilbert (1977). The nature of morality : an introduction to ethics. New York: Oxford University Press. ISBN 9780195021431. OCLC 2725781.
  • Joyce, Richard (2001). The Myth of Morality, Cambridge University Press.
  • Korsgaard, Christine (1996). The Sources of Normativity, Cambridge University Press.
  • Mackie, John (1977). Ethics: inventing right and wrong. London. ISBN 0140135588. OCLC 24729622.
  • Shafer-Landau, Russ (2010). The Fundamentals of Ethics. Oxford University Press. ISBN 978-0-19-532086-2.
  • Timmons, Mark (1999). Morality without Foundations: A Defense of Ethical Contextualism, Oxford University Press.

Further reading

  • Garner, Richard T.; Bernard Rosen (1967). Moral Philosophy: A Systematic Introduction to Normative Ethics and Meta-ethics, New York: Macmillan.
  • 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)

About the queerness argument

  • Brink, David O. (1984). "Moral Realism and the Sceptical Arguments from Disagreement and Queerness", Australasian Journal of Philosophy 62(2): 111–125.
  • Garner, Richard T. (1990). "On the Genuine Queerness of Moral Properties and Facts", Australasian Journal of Philosophy 68(2): 137–46.
  • Mackie, J. L. (1946). "A Refutation of Morals", Australasian Journal of Psychology and Philosophy 24: 77–90. doi:10.1080/00048404608541486
  • Rosati, Connie S. (2006). "Moral Motivation", The Stanford Encyclopedia of Philosophy, Edward N. Zalta (ed.).
  • Shepski, Lee (2008). "The Vanishing Argument from Queerness", Australasian Journal of Philosophy 86(3): 371–87.