Read Melissa Lane's timely article, Plato the constitutionalist—and the Supreme Court published on the Ideas blog of Princeton University Press. Melissa Lane is Director of the University Center for Human Values and Class of 1943 Professor of Politics. Her books include Eco-Republic: What the Ancients Can Teach Us about Ethics, Virtue, and Sustainable Living and The Birth of Politics: Eight Greek and Roman Political Ideas and Why They Matter (both Princeton) and Method and Politics in Plato’s “Statesman.” Her most recent book is Of Rule and Office: Plato’s Ideas of the Political.