63. It may be said in general, that three distinct currents of religious opinion are discernible, on this side of the Alps, in the first part of the fifteenth century. 1. The high pretensions of the Church of Rome to a sort of moral, as well as theological, infallibility, and to a paramount authority even in temporal affairs, when she should think fit to interfere with them, were maintained by a great body in the monastic and mendicant orders, and had still, probably, a considerable influence over the people in most parts of Europe. 2. The councils of Constance and Basle, and the contentions of the Gallican and German Churches against the encroachments of the holy see, had raised up a strong adverse party, supported occasionally by the government, and more uniformly by the temporal lawyers and other educated laymen. It derived, however, its greatest force from a number of sincere and earnest persons, who set themselves against the gross vices of the time, and the abuses grown up in the church through self-interest or connivance. They were disgusted, also, at the scholastic systems, which had turned religion into a matter of subtle dispute, while they laboured to found it on devotional feeling and contemplative love. The mystical theology, which, from seeking the illuminating influence and piercing love of the Deity, often proceeded onward to visions of complete absorption in his essence, till that itself was lost, as in the east, from which this system sprung, in an annihilating pantheism, had never wanted, and can never want, its disciples. Some, of whom Bonaventura is the most conspicuous, opposed its enthusiastic emotions to the icy subtleties of the schoolmen. Some appealed to the hearts of the people in their own language. Such was Tauler, whose sermons were long popular and have often been printed; and another was the unknown author of The German Theology, a favourite work with Luther, and known by the Latin version of Sebastian Castalio. Such, too, were Gerson and Clemangis, and such were the numerous brethren who issued from the college of Deventer.[306] One, doubtless of this class, whenever he may have lived, was author of the celebrated treatise De Imitatione Christi (a title which has been transferred from the first chapter to the entire work), commonly ascribed to Thomas von Kempen or à Kempis, one of the Deventer society, but the origin of which has been, and will continue to be, the subject of strenuous controversy. Besides Thomas à Kempis, two candidates have been supported by their respective partisans; John Gerson, the famous chancellor of the university of Paris, and John Gersen, whose name appears in one manuscript, and whom some contend to have been abbot of a monastery at Vercelli in the thirteenth century, while others hold him an imaginary being, except as a misnomer of Gerson. Several French writers plead for their illustrious countrymen, and especially M. Gence,