This letter rewards somewhat careful reading. Two ideas are obviously before the writer's mind: First, the cause of sound learning and its application to theology, the cause with which he identifies himself so completely that every attack upon it seems a personal assault upon him, and _vice versa_. Second, the Lutheran uprising, now beginning to show its possibilities of danger. Erasmus names no names, but the solemn warning to the pope as to the little flame that may grow to a consuming fire seems to point plainly enough to Luther, and the distinction so carefully drawn between Germany and the compact monarchies of France and England confirms this idea. It is a warning prophetic in its clearness of insight, but naïve to the point of childishness in its suggestions of a remedy. The new little emperor was not only _ingenti semotus intervallo_ from the field of Luther's activity, but the very constitution of Germany made it utterly out of the question that he could take any action whatever against Luther except by the consent of the prince who was his immediate sovereign. The "_reguli_," the "little kings" in Germany, had not bought their independence by centuries of conflict to suffer any such burnings at the stake and cutting-off of heads by any emperor as those capable youths, Henry and Francis, could command at will in London or Paris. Nor was there any more promise in Erasmus' suggestion that the pope should order the parties in conflict to keep silence. The Leipzig disputation of Luther with John Eck in July of this same year (1519) was to bring out clearly that, after all, the real issue touched the papal authority, and when that was questioned it was idle to imagine that any papal action whatever could really affect the course of events. There is a certain variation upon this suggestion in the dedication to Cardinal Campeggio of the paraphrases of certain epistles of Paul in 1519.[127] After a most flattering eulogy of Leo X. for his great interest in sound learning, Erasmus says: [127] vii., 969.