Approaches to Ethical Theory

Ethics has developed as people have reflected on the intentions and consequences of their acts. From this reflection on the nature of human behavior, theories of conscience have developed, giving direction to much ethical thinking. Intuitionists (Ralph Cudworth, Samuel Clarke), moral-sense theorists (the 3d earl of Shaftesbury, Francis Hutcheson), and sentimentalists (J. J. Rousseau, Pierre-Simon Ballanche) postulated an innate moral sense, which serves as the ground of ethical decision. Empiricists (John Locke, Claude Helvétius, John Stuart Mill) deny any such innate principle and consider conscience a power of discrimination acquired by experience. In the one case conscience is the originator of moral behavior, and in the other it is the result of moralizing. Between these extremes there have been many compromises.

The Nature of the Good

Another major difference in the approach to ethical problems revolves around the question of absolute good as opposed to relative good. Throughout the history of philosophy thinkers have sought an absolute criterion of ethics. Frequently moral codes have been based on religious absolutes. Immanuel Kant, in his categorical imperative, attempted to establish an ethical criterion independent of theological considerations. Rationalists (Plato, Baruch Spinoza, Josiah Royce) founded their ethics on a metaphysics.

All varying methods of building an ethical system pose the question of the degree to which morality is authoritative (i.e., imposed by a power outside the individual). If the criterion of morality is the welfare of the state (G. W. Hegel), the state is supreme arbiter. If the authority is a religion, then that religion is the ethical teacher. Hedonism, which equates the good with pleasure in its various forms, finds its ethical criterion either in the good of the individual or the good of the group. An egoistic hedonism (Aristippus, Epicurus, Julien de La Mettrie, Thomas Hobbes) views the good of the individual as the ultimate consideration. A universalistic hedonism, such as utilitarianism (Jeremy Bentham, James Mill), finds the ethical criterion in the greatest good for the greatest number.

Twentieth-Century Ethical Thought

Among ethical theories debated in the first half of the 20th cent. were instrumentalism (John Dewey), for which morality lies within the individual and is relative to the individual's experience; emotivism (Sir Alfred J. Ayer), wherein ethical considerations are merely expressions of the subjective desires of the individual; and intuitionism (G. E. Moore), which postulates an immediate awareness of the morally good. Agreeing with Moore that the morally good is directly apprehended through intuition, deontological intuitionists (H. A. Prichard, W. D. Ross) went on to distinguish between good and right and to argue that moral obligations are intrinsically compelling whether or not their fulfillment results in some greater good.

Important ethical theories since the mid-20th cent. have included the prescriptivism of R. M. Hare, who has compared moral precepts to commands, a crucial difference between them being that moral precepts can be universally applied. In his arguments for virtue ethics, Alasdair C. MacIntyre has cautioned against unbridled individualism and advocated correctives drawn from Aristotle's discussion of moral virtue as the mean between extremes. Thomas Nagel has held that, in moral decision making, reason supersedes desire, so that it becomes rational to choose altruism over a narrowly defined self-interest. See also bioethics.

Theory that derives duty from what is valuable as an end, in a manner diametrically opposed to deontological ethics. Teleological ethics holds that the basic standard of duty is the contribution that an action makes to the realization of nonmoral values. Teleological theories differ on the nature of the nonmoral goods that actions ought to promote. Eudaemonism emphasizes the cultivation of virtue in the agent as the end of all action. Utilitarianism holds that the end consists in the aggregate balance of pleasure to pain for all concerned. Other teleological theories claim that the end of action is survival and growth, as in evolutionary ethics (Herbert Spencer); power over others (Niccolò Machiavelli and Friedrich Nietzsche); satisfaction and adjustment, as in pragmatism (Ralph Barton Perry and John Dewey); and freedom, as in existentialism (Jean-Paul Sartre).

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Branch of philosophy concerned with the nature of ultimate value and the standards by which human actions can be judged right or wrong. The term is also applied to any system or theory of moral values or principles. Ethics is traditionally subdivided into normative ethics, metaethics, and applied ethics. Normative ethics seeks to establish norms or standards of conduct; a crucial question in this field is whether actions are to be judged right or wrong based on their consequences or based on their conformity to some moral rule, such as “Do not tell a lie.” Theories that adopt the former basis of judgment are called consequentialist (see consequentialism); those that adopt the latter are known as deontological (see deontological ethics). Metaethics is concerned with the nature of ethical judgments and theories. Since the beginning of the 20th century, much work in metaethics has focused on the logical and semantic aspects of moral language. Some major metaethical theories are naturalism (see naturalistic fallacy), intuitionism, emotivism, and prescriptivism. Applied ethics, as the name implies, consists of the application of normative ethical theories to practical moral problems (e.g., abortion). Among the major fields of applied ethics are bioethics, business ethics, legal ethics, and medical ethics.

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Ethical theories that maintain that the moral rightness or wrongness of an action depends on its intrinsic qualities, and not (as in consequentialism) on the nature of its consequences. Deontological ethics holds that at least some acts are morally wrong in themselves (e.g., lying, breaking a promise, punishing the innocent, murder). It often finds expression in slogans such as “Duty for duty's sake.” Deontological theories are often formulated in such a way that the rightness of an action consists in its conformity to a moral rule or command, such as “Do not bear false witness.” The most important exponent of deontological ethics is Immanuel Kant. Seealso categorical imperative.

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