M. D. Usher is the Lyman-Roberts Professor of Classical Languages and Literature and a member of the Department of Geography and Geosciences at the University of Vermont. With his wife, he also built, owns, and operates Works & Days Farm, which produces lamb, eggs, and maple syrup in Shoreham, Vermont. His books include How to Be a Farmer: An Ancient Guide to Life on the Land and How to Say No: An Ancient Guide to the Art of Cynicism (both Princeton).