Massimo Pigliucci is the K.D. Irani Professor of Philosophy at the City College of New York. His academic work is in evolutionary biology, philosophy of science, the nature of pseudoscience, and the practical philosophy of Stoicism. His books include How to Be a Stoic: Using Ancient Philosophy to Live a Modern Life (Basic Books) and Nonsense on Stilts: How to Tell Science from Bunk (University of Chicago Press). His forthcoming book is A Field Guide to a Happy Life: 53 Brief Lessons for Living (Basic Books).