Theory of Forms
This well-known article was first published in "The American Journal of Philology" and gives a positive overview of Plato's system. It was reprinted in Vlastos' 1971 anthology "Plato I: Metaphysics and Epistemology" and Allen's 1965 anthology "Studies in Plato's Metaphysics." Here Cherniss argues that Plato's Theory of Forms at once served as the foundation of Plato's ethics, epistemology, and ontology, and resolved skeptical problems in all three areas: