G. Steinhausen, in his “Geschichte der deutschen Kultur,” writes: “No one ever insisted more strongly than Luther on his role [the devil’s]; he was simply carried away by the idea.... Though in his words and the stories he tells of the devil he speaks the language of the populace, yet the way in which he weaves diabolical combats and temptations into man’s whole life is both new and unfortunate. Every misfortune, war and tempest, every sickness, plague, crime and deformity emanates from the Evil One.”[1143] Some of what Luther borrowed from the beliefs of his own day goes back to pre-Christian times. The belief in witches comprised much heathen tradition too deeply rooted for the early missionaries to eradicate. Moreover, certain statements of olden ecclesiastical writers incautiously exploited enabled even the false notions of the ancient Græco-Roman world to become also current. Fear of hidden, dangerous forces, indiscriminating repetition of alleged incidents from the unseen, the ill-advised discussions of certain theologians and thoughtless sermons of popular orators, all these causes and others contributed to produce the crass belief in witches as it existed even before Luther’s day at the close of the Middle Ages, and such as we find it, for instance, in the sermons of Geiler von Kaysersberg. The famous Strasburg preacher not only accepted it as an undoubted fact, that witches were able with the devil’s help to do all kinds of astounding deeds, but he also takes for granted the possibility of their making occasional aerial trips, though it is true he dismisses the nocturnal excursions of the women with Diana, Venus and Herodias as mere diabolical delusion. He himself never formally demanded the death-penalty for witches, but it may be inferred that he quite countenanced the severe treatment advocated in the “Witches’ Hammer.” In his remarks on witches he follows partly Martin Plantsch, the Tübingen priest and University professor, partly, and still more closely, the “_Formicarius_” of the learned Dominican Johannes Nider (1380-1438).[1144] Concerning the witches and their ways Luther’s works contain an extraordinary wealth of information.