We may fairly ask whether on the whole the character of the man has been more correctly gauged by those who look upon his favourite kind of controversy as nothing more than the disfiguring dirt under his feet, or by those others who trace it back to the very nature of his titanic struggle with the Church. Bucer, as we just saw, traced Luther’s outbursts to the violence of his temper, and Luther himself frequently declares that he wrote “so severely, intentionally and with well-considered courage.”[406] This he looks upon as demanded by his position and, therefore, it is, as he thinks, “well done.”[407] According to Wilhelm Walther, Luther had chosen the “heroic method of development,” i.e. “of isolating himself as it were from the whole world”; his standpoint was not “within the grasp” of the world of his opponents.[408] Thus, unless he wished to forsake his cause, he had to carry it through single-handed, straining every nerve and having recourse to vituperation the like of which had never hitherto been heard. We shall examine elsewhere the psychological questions involved in this sort of polemics (vol. iv., xxvi. 3). The above will suffice concerning the influence exercised on his literary activity by the public position which Luther had assumed. 4. Further Traits towards a Picture of Luther. Outward Appearance. Sufferings, Bodily and Mental A change had gradually taken place in Luther’s outward appearance even previous to his stay at the Wartburg. By the time he had returned to Wittenberg his former leanness had gone and he was inclined to be stout. Johann Kessler, a Swiss pupil who saw him often in 1522 and who frequently played the lute to cheer him, writes in his “Sabbata”: “When I knew Martin at the age of forty-one in 1522 he was by nature somewhat portly, of an upright gait, inclined rather backward than forward, and always carried his face heavenward.”[409] Albert Burer, who was also studying at Wittenberg after Luther’s return from the Wartburg, praises his amiability, his pleasant, melodious voice, and his winning manner of speech.[410] Thomas Blaurer, then his enthusiastic disciple, is also full of praise of his kindly, attractive and sympathetic manner towards those who came under his influence and to whom he ever behaved in a simple and natural fashion.[411] Neither of them, however, describes his facial appearance. From the likenesses of him to be referred to below it appears that his face usually wore an expression of energy and defiance. His chin and mouth protruded slightly and gave an impression of firmness; a slight frown denoted irritability; over his right eye there was a large wart; a lock of curly hair overhung his forehead. His “dark eyes blinked and twinkled like stars so that it was difficult to look at them fixedly.”[412] (J. Kessler.) As remarked above, his deportment was upright and almost defiant.