Keiran Setiya teaches philosophy at MIT, working mainly in ethics, epistemology, and the philosophy of mind. He is the author of Life is Hard, Midlife: A Philosophical Guide, Practical Knowledge, Reasons without Rationalism, and Knowing Right From Wrong.
This article is part of the Agora series, a collaboration between the New Statesman and Aaron James Wendland. Wendland is Vision Fellow in Public Philosophy at King’s College, London and a Senior Research Fellow at Massey College, Toronto. He tweets @aj_wendland.