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 Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.