In this essay I discuss an important but neglected controversy in which the Stoics sought to discredit Epicurus' teaching on justice by showing that the Epicurean wise man, if immune from detection or punishment, will commit injustice whenever he may profit from it. Under the influence of this criticism, tradition has developed a view of Epicurus' position that makes it so weak and vulnerable that it is difficult to see how Epicureans could have defended it over the course of several (...) centuries. There is decisive evidence, however, that Epicurus' critics seriously misrepresented his position, and that the tradition influenced by their polemic stands in need of fundamental revision.1 My purpose here is to prove that the Epicurean wise man will not commit injustice, secretly or openly, because it is in his self–interest to be just; to reconstruct Epicurus' arguments for this teaching; to show how he defends his position against natural right theorists; and to clarify the larger issues at stake in his controversy with the Stoics. I begin by sketching the Stoic criticisms and the Epicurean response. (shrink)