““I was also aware of three other historically important Christians whose apparently obsessive-compulsive symptoms had become a source of latter-day psychiatric speculation. They were Martin Luther, architect of Europe’s sixteenth-century Reformation and a figure of incomparable importance in the history of Western civilization; Ignatius of Loyola, Luther’s famous adversary, founder of the Catholic order known as the Jesuits and leader of the Counter-Reformation; and Alphonsus Liguori, a nineteenth-century Catholic saint who is renowned for his contributions to the field of moral theology.””