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 to be 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". Moral nihilism today broadly tends to take the form of an Error Theory: The view developed originally by J.L. Mackie in his 1977 book Ethics: Inventing Right and Wrong. Error theory and nihilism broadly take the form of a negative claim about the existence of objective values or properties. Under traditional views there are moral properties or methods which hold objectively in some sense beyond our contingent interests which morally obligate us to act. For Mackie and the Error Theorists, such properties do not exist in the world, and therefore morality conceived of by reference to objective facts must also not exist. Therefore, morality in the traditional sense does not exist. However, holding nihilism does not necessarily imply that we should give up using moral or ethical language; some nihilists contend that it remains a useful tool. In fact Mackie and other contemporary defenders of Error Theory, such as Richard Joyce, defend the use of moral or ethical talk and action even in knowledge of their fundamental falsity. The legitimacy of this activity however is questionable and is a subject of great debate in philosophy at the moment. 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. Under such a view moral propositions which