Arthur O. Lovejoy (1873-1962) was professor of philosophy at John Hopkins University where he founded the History of Ideas Club. He believed that the history of ideas should focus on singular concepts. He founded the Journal of the History of Ideas. Some of his most famous writings include Reflections on Human Nature, The Revolt against Dualism, and Primitivism and Related Ideas in Antiquity.
Jonathan B. Imber is Jean Glasscock Professor of sociology at Wellesley College. He is the author of Abortion and the Private Practice of Medicine and Trusting Doctors. He serves as editor-in-chief of Society.