A book frequently quoted in this encyclical is Romano Guardini’s The End of the Modern World. Pope Francis has long been interested in and influenced by Guardini, who was also a major influence on Benedict XVI. If I had my way, I’d spend the next couple of months preparing to teach a class in which this encyclical — a far richer work than I had expected it to be, and one that I hope will have lasting power — would be read alongside Guardini’s book, with both accompanied by repeated viewings of Mad Max: Fury Road. The class would be called “Who Killed the World?”

My first thoughts on Laudato Si’