Kei Hiruta’s research lies at the intersection of political philosophy and intellectual history. He is currently completing a monograph project, entitled ‘Berlin’s Bête Noire: Hannah Arendt and Isaiah Berlin on Freedom, Politics, and Humanity’, that tells the story of the intellectual, political, and personal conflict between Arendt and Berlin. Kei received his D.Phil. in Political Theory from Oxford, was a Fellow of the Carnegie Council for Ethics in International Affairs, and has held visiting research positions at Columbia University, Bard College, and the University of Tokyo. He is an Associate Editor of the Journal of Practical Ethics, and one of the founding Associate Editors of Arendt Studies. He is a Research Fellow at Wolfson College.