Book excerpt: Over the past twenty years, the debate between neutrality and perfectionism has been at the center of political philosophy. Now Perfectionism and Neutrality: Essays in Liberal Theory brings together classic papers and new ideas on both sides of the discussion. Editors George Klosko and Steven Wall provide a substantive introduction to the history and theories of perfectionism and neutrality, expertly contextualizing the essays and making the collection accessible to everyone interested in the interaction between morals and the state.