Home › News & Events › Events › Mary Carruthers Lecture: "Polyfocal Perspective and the Perplexity Principle in Medieval Aesthetics" Mary Carruthers Lecture: "Polyfocal Perspective and the Perplexity Principle in Medieval Aesthetics" Time: Thu Mar 22, 2018, 5:00 pm - 6:00 pm Location: Medieval Institute, main reading room, Hesburgh Library 7th floor (View on map.nd.edu)