were saved by a new and a wonderful thing. From the East, the home of religions, had spread, like an exhalation, Christianity, that religion which proves by its survival that it is the fittest sanction for the will of man. This religion, enter- ing as a new spirit into the ancient fabric of Roman Empire, was to hold men's service in heart and soul as well as in body; yet to this end no mere mystic or personal religion could suffice : clothing itself with the political and ritual pride and even with the mythology of the pagan Empire it inspired a new adoration; but it imposed also upon Europe a catholic and elabo- rated creed. To preserve the authority of the common faith not only must every knee be bowed, not only must every heart be touched, but to build and to repair its fabric every mind must also bring its service. How the scheme of the Faith was built up, how oriental ecstasy and hellenistic subtlety, possessing themselves of the machinery of Roman pomp, were wrought to this end, we may briefly consider.
As, politically, under Diocletian and Constantine the ancient world gave place to the new, so in the third century philosophy was born again in
