The unionistic tendencies and doctrinal corruptions which Melanchthon injected into Lutheranism were all the more dangerous to our Church because they derived special weight and prestige from the fact that Luther had unstintingly praised his gifts, his books, and the services he had rendered the Church (St. L. 18, 1671; 23, 1152), that he was now generally regarded as Luther's successor with regard to theological leadership of the Church; and that he was gratefully admired as the Praeceptor Germaniae by a host of loyal pupils, who made it a point also to cultivate just those theological peculiarities of Master Philip, as they called him, in which he differed from Luther. 135. Melanchthon's "Shameful Servitude." That Melanchthon failed our Church in the Interim emergency as well as in the subsequent controversies is generally ascribed to the fact that he lacked the bracing influence and assistance of Luther. No doubt, there is a good deal of truth in this assumption. But the true reason why he did not measure up to the demands of the times and the expectations of our Church were not mere moral weaknesses, but rather the errors and false principles to which he was wedded. How could Melanchthon have approved himself a leader of the Lutherans when he was out of sympathy with them, doubted some of their most cherished doctrines, and long ago had struck out on a path deviating from that mapped out by Luther? True, the bracing which he received from Luther in the past had repeatedly kept him from publicly sacrificing the truth, but even in these instances he did not always yield because he was really convinced, but because he feared the uncompromising spirit of Luther. That fear of an open conflict with Luther which, he felt, would result in a crushing defeat for himself, bulked large among the motives which prompted him to maintain a semblance of true orthodoxy as long as Luther lived, is clearly admitted by Melanchthon himself. In his notorious and most discreditable letter to Carlowitz (counselor of Elector Maurice), written April 28, 1548, eight days after the meeting at Celle, where he had debauched his conscience by promising submission to the religious demands of the Emperor, Melanchthon, pouring forth his feelings and revealing his true inwardness and his spirit of unionism and indifferentism as much as admitted that in the past he had been accustomed to hiding his real views. Here he declared in so many words that it was not he who started, and was responsible for, the religious controversy between the Lutherans and Romanists, but rather Luther whose contentious spirit (he said) also had constantly increased the rupture, and that under Luther he had suffered "a most shameful servitude."