School and college days come naturally to an end, or are cut short by one intervening incident or another; and the studies of Michael Servetus at Toulouse were interrupted by an invitation to enter his service from brother Juan Quintana, a Franciscan friar, confessor to the Emperor Charles V., about to attend on his Sovereign to his coronation in the imperial city of Bologna, and, of still greater significance, to the Diet of Augsburg, which followed it closely. In what capacity Servetus joined Quintana we are not informed; but if father confessors ever engaged private secretaries, we can hardly doubt that it must have been in the intimate relationship suggested, for which the accomplishments of the younger man so obviously qualified him. The invitation from Quintana is interesting on many accounts, and was certainly an important element in the mental development of Servetus. Though he may have quitted Spain hurriedly, perhaps secretly--in fear of the Inquisition, as said--he could have left nothing but a good name for conduct and accomplishment behind him, otherwise he would never have been recommended as a fit and proper person to act as secretary to the confessor of the great Emperor. Not forgotten by his old masters of Saragossa, the clever student was thought of by them when Quintana made known his want of a secretary, and must have been recommended to him as in every way qualified to fill a situation of the kind. Michael Servetus, as we apprehend him, was one of those sensitive natures which, like the stainless plate of the photographer, retains at once and reflects every object presented to it; his service with Quintana, consequently, was one of the incidents that influenced the whole of his after life. Up to the time of his engagement with the confessor he had been but one among hundreds of other students, known to his teachers as a young man of superior abilities, it may be, but not an object of more particular attention to any one of them. In the intimate relationship implied between the elderly principal and the youthful underling matters were entirely changed; and recent inquiries[7] lead to the conclusion that the hood of the barefooted friar Juan Quintana covered the head of a man of superior powers, cherishing larger, more liberal and more tolerant views than were current in his age, more especially among the class to which he belonged.