History of Ethics


ethics, in philosophy, the study and evaluation of human conduct in the light of moral principles. Moral principles may be viewed either as the standard of conduct that individuals have constructed for themselves or as the body of obligations and duties that a particular society requires of its members.

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.


See H. Sidgwick, Outlines of the History of Ethics (1902); A. C. MacIntyre, A Short History of Ethics (1965); M. Warnock, Ethics since 1900 (1979); W. D. Hudson, A Century of Moral Philosophy (1980); B. Williams, Ethics and the Limits of Philosophy (1985); P. Singer, ed., Applied Ethics (1986).

The Columbia Encyclopedia, 6th ed. Copyright© 2014, The Columbia University Press.

Selected full-text books and articles on this topic

A History of Western Ethics
Lawrence C. Becker; Charlotte B. Becker.
Routledge, 2003 (2nd edition)
Essays on the History of Ethics
Michael Slote.
Oxford University Press, 2010
Ethics: History, Theory, and Contemporary Issues
Steven M. Cahn; Peter Markie.
Oxford University Press, 1998
A Comprehensive History of Western Ethics: What Do We Believe?
Warren Ashby; W. Allen Ashby.
Prometheus Books, 1997
Real Ethics: Reconsidering the Foundations of Morality
John M. Rist.
Cambridge University Press, 2001
A Short History of Ethics: A History of Moral Philosophy from the Homeric Age to the Twentieth Century
Alasdair MacIntyre.
Routledge, 1998 (2nd edition)
The Problem of Choice: An Introduction to Ethics
William Henry Roberts.
Ginn, 1941
Outlines of the History of Ethics for English Readers
Henry Sidgwick.
Beacon Press, 1960
Ethics, Origin and Development
Prince Petr Alekseevich Kropotkin; Louis S. Friedland; Joseph R. Piroshnikoff.
Dial Press, 1934
FREE! History of Ethics within Organized Christianity
Thomas Cuming Hall.
Charles Scribner's Sons, 1910
The Hastening That Waits: Karl Barth's Ethics
Nigel Biggar.
University of Oxford, 1993
Marx and the Ancients: Classical Ethics, Social Justice, and Nineteenth-Century Political Economy
George E. McCarthy.
Rowman & Littlefield, 1990
Individual and Conflict in Greek Ethics
Nicholas White.
Clarendon Press, 2002
FREE! A Short History of Ethics: Greek and Modern
Reginald A. P. Rogers.
MacMillan, 1911
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