Roald Hoffmann is Frank H. T. Rhodes Professor of Humane Letters Emeritus at Cornell University. He shared the 1981 Nobel Prize in Chemistry with Kenichi Fukui. His many published works include the play Oxygen, co-written with Carl Djerassi, and several poetry collections, the most recent of which is Constants of the Motion (Dos Madres Press, 2020). Credit: Nick Higgins