Few thinkers have been as influential as John Stuart Mill, whose philosophy has arguably defined Utilitarian ethics and modern liberalism. But fewer still have been subject to as much criticism for perceived ambiguities and inconsistencies. In Completely Free, John Peter DiIulio offers an ambitious and comprehensive new reading that explains how Mill’s ethical, moral, and political ideas are all part of a unified, coherent, and powerful philosophy. Completely Free provides an unmatched account of the unity and power of Mill’s enduring moral and political thought.