G. A. Cohen was one of the world's leading political theorists. He was noted, in particular, for his contributions to the literature of egalitarian justice. Cohen's classic writings offer one of the most influential responses to the currency of the egalitarian justice question the question, that is, of whether egalitarians should seek to equalize welfare, resources, opportunity, or some other indicator of well-being. Underlying Cohen's argument is the intuition that the purpose of egalitarianism is to eliminate disadvantage for which it is inappropriate to hold the person responsible. His...