On G.E. Moore's Principia Ethica, ch. 1 (1903); Charles Leslie Stevenson's "The Emotive Meaning of Ethical Terms" (1937), and Alasdair MacIntyre's After Virtue, ch. 1-2. Is there such a thing as moral intuition? Is "good" a simple property that we all recognize but can't explain like yellow? Or are moral terms just tools we use to convince other people to like things that we like? Get the full discussion at partiallyexaminedlife.com.