• Thomistic transubstantiation attempts to explain how Jesus’ body and blood come to be present on the altar after the Sacramental bread and wine are consecrated. Although Aquinas’s argument for this theory is stronger than his critics give him credit for, the argument ultimately fails. Examining two of Aquinas’s premises that have gone relatively unnoticed in the literature, I argue that Aquinas does not, and probably cannot, define the terms presence in a place and local motion with sufficient u…Read more