Chisholm was a tremendously successful teacher of philosophy. His courses, both at the undergraduate level and at the graduate, were always packed with enthusiastic students and colleagues. In spite of his great distinction, he was modest and amusing in the classroom. He enjoyed engaging in animated critical discussion with students, and encouraged his students to present their questions and objections. In many cases these questions led to revisions of the doctrines Chisholm had presented. He was always pleased to receive good criticism, and showed enormous creativity in producing revisions in his attempts to overcome the problems. In his autobiography, Chisholm mentions how delighted he was to have had such eager “refuters” in his classes at Brown as well as at other places where he visited. For a touching discussion of Chisholm’s teaching style, see Taylor (1975) .