Kei’s work at Principia draws on his academic expertise on moral and political philosophy and his prior work experience at Carnegie Council for Ethics in International Affairs, a New York-based non-profit organisation devoted to research and education in ethics.

Kei is the Assistant Professor and AIAS-COFUND Fellow at the Aarhus Institute of Advanced Studies, Aarhus University, Denmark. He is the author of Hannah Arendt and Isaiah Berlin (Princeton University Press) as well as a number of essays and book chapters in scholarly journals, academic presses, and media and think tank outlets. He received his D.Phil. from the University of Oxford and previously held fellowships at Oxford and l’Institut d’études avancées de Paris.