Included among the ecclesiastical works on his bedroom shelves were the writings of “The Great Agnostic,” Robert Ingersoll, whom the brothers and Katharine were encouraged to read. “Every mind should be true to itself – should think, investigate and conclude for itself,” wrote Ingersoll. It was the influence of Ingersoll apparently that led the brothers to give up regular attendance at church, a change the Bishop seems to have accepted without protest.