Here in Lyons as elsewhere, it was under a monarchical head called by the Greek name of _Episcopos_. Greek was a language which the cultured knew and used throughout the western or Latin part of the Empire to which he belonged; the title would not, therefore, seem to him alien any more than would be the Greek title of _Presbyter_—the name of the official priests acting under this monarchical head of the organization—or than would the Greek title _Diaconos_, which title was attached to an order, just below the priests, which was comprised of the inferior officials of the clerical body. He knew that this particular cult, like the innumerable others that were represented by the various sacred buildings of the city, had its mysteries, its solemn ritual, and so forth, in which these, the officials of its body, might alone engage, and which the mass of the local “Christians”—for such was their popular name—attended as a congregation. But he would further know that this scheme of worship differed wholly from any other of the many observances round it _by a certain fixity of definition_. The Catholic Church was not an opinion, nor a fashion, nor a philosophy; it was not a theory nor a habit; it was a _clearly delineated body corporate based on numerous exact doctrines_, extremely jealous of its unity and of its precise definitions, and filled, as was no other body of men at that time, with passionate conviction. By this I do not mean that the Senator so walking to his official duties could not have recalled from among his own friends more than one who was attached to the Christian body in a negligent sort of way, perhaps by the influence of his wife, perhaps by a tradition inherited from his father: he would guess, and justly guess, that this rapidly growing body counted very many members who were indifferent and some, perhaps, who were ignorant of its full doctrine. But the body as a whole, in its general spirit, and _especially in the disciplined organization of its hierarchy_, did differ from everything round it in this double character of precision and conviction. There was no certitude left and no definite spirit or mental aim, no “dogma” (as we should say today) taken for granted in the Lyons of his time, save among the Christians. The pagan masses were attached, without definite religion, to a number of customs. In social morals they were guided by certain institutions, at the foundation of which were the Roman ideas of property in men, land and goods; patriotism, the bond of smaller societies, had long ago merged in the conception of a universal empire. This Christian Church alone represented a complete theory of life, to which men were attached, as they had hundreds of years before been attached to their local city, with its local gods and intense corporate local life.