Medieval philosophy
The White Rose group was motivated by ethical, moral, and religious considerations. They supported and took in individuals of all backgrounds, and it did not depend on race, sex, religion, or age. They came from various religious backgrounds. Willi Graf and Katharina Schüddekopf were devout Catholics. Alexander Schmorell was an Orthodox Christian. Traute Lafrenz adhered to the concepts of anthroposophy, while Eugen Grimminger considered himself a Buddhist. Christoph Probst was baptized a Catholic only shortly before his execution. His father Hermann was nominally a Catholic, but also a private scholar of Eastern thought and wisdom. In their diaries and letters to friends, both Scholl siblings wrote about their reading of Christian scholars including Augustine of Hippo's "Confessions" and Etienne Gilson, whose work on Medieval philosophy they discussed amongst other philosophical works within their network of friends. The Scholls read sermons by John Henry Newman, and Sophie gave two volumes of Newman's sermons to her boyfriend, Fritz Hartnagel, when he was assigned to the Eastern Front; he wrote to her: "[W]e know by whom we are created, and that we stand in a relationship of moral obligation to our creator. Conscience gives us the capacity to distinguish between good and evil." This is a paraphrase of Newman's sermon, "The Testimony of Conscience."