1. The fundamental assumption of all the Apologists is that there can only be one and the same relation on earth between God and free man, and that it has been conditioned by the creation. This thought, which presupposes the idea of God's unchangeableness, at bottom neutralises every quasi-historical and mythological consideration. According to it grace can be nothing else than the stimulation of the powers of reason existent in man; revelation is supernatural only in respect of its form, and the redemption merely enables us to redeem ourselves, just as this possibility was given at the creation. Sin, which arose through temptation, appears on the one hand as error which must almost of necessity have arisen so long as man only possessed the "germs of the Logos" ([Greek: spermata tou logou]) and on the other as the dominion of sensuousness, which was nearly unavoidable since earthly material clothes the soul and mighty demons have possession of the world. The mythological idea of the invading sway of the demons is really the only interruption of the rationalistic scheme. So far as Christianity is something different from morality, it is the antithesis of the service and sovereignty of the demons. Hence the idea that the course of the world and mankind require in some measure to be helped is the narrow foundation of the thought of revelation or redemption. The necessity of revelation and redemption was expressed in a much stronger and more decisive way by many heathen philosophers of the same period. Accordingly, not only did these long for a revelation which would give a fresh attestation to old truth, but they yearned for a force, a real redemption, a _praesens numen_, and some new thing. Still more powerful was this longing in the case of the Gnostics and Marcion; compare the latter's idea of revelation with that of the Apologists. It is probable indeed that the thought of redemption would have found stronger expression among them also, had not the task of _proof_, which could be best discharged by the aid of the Stoic philosophy, demanded religious rationalism. But, admitting this, the determination of the highest good itself involved rationalism and moralism. For immortality is the highest good, in so far as it is perfect knowledge--which is, moreover, conceived as being of a rational kind,--that necessarily leads to immortality. We can only find traces of the converse idea, according to which the change into the immortal condition is the _prius_ and the knowledge the _posterius_. But, where this conception is the prevailing one, moralistic intellectualism is broken through, and we can now point to a specific, supernatural blessing of salvation, produced by revelation and redemption. Corresponding to the general development of religious philosophy from moralism into mysticism (transition from the second to the third century), a displacement in this direction can also be noticed in the history of Greek apologetics (in the West it was