3. All the demands, the fulfilment of which constitutes the virtue and righteousness of men, are summed up under the title of _the new law_. In virtue of its eternally valid content this new law is in reality the oldest; but it is new because Christ and the prophets were preceded by Moses, who inculcated on the Jews in a transient form that which was eternally valid. It is also new because, being proclaimed by the Logos that appeared in Christ, it announced its presence with the utmost impressiveness and undoubted authority, and contains the promise of reward in terms guaranteed by the strongest proof--the proof from prophecy. The old law is consequently a new one because it appears now for the first time as purely spiritual, perfect, and final. The commandment of love to one's neighbour also belongs to the law; but it does not form its essence (still less love to God, the place of which is taken by faith, obedience, and imitation). The content of all moral demands is comprehended in the commandment of perfect, active holiness, which is fulfilled by the complete renunciation of all earthly blessings, even of life itself. Tatian preached this renunciation in a specially powerful manner. There is no need to prove that no remains of Judaeo-Christianity are to be recognised in these ideas about the new law. It is not Judaeo-Christianity that lies behind the Christianity and doctrines of the Apologists, but Greek philosophy (Platonic metaphysics, Logos doctrine of the Stoics, Platonic and Stoic ethics), the Alexandrine-Jewish apologetics, the maxims of Jesus, and the religious speech of the Christian Churches. Justin is distinguished from Philo by the sure conviction of the living power of God, the Creator and Lord of the world, and the steadfast confidence in the reality of all the ideals which is derived from the person of Christ. We ought not, however, to blame the Apologists because to them nearly everything historical was at bottom only a guarantee of thoughts and hopes. As a matter of fact, the assurance is not less important than the content. By dint of thinking one can conceive the highest truth, but one cannot in this way make out the certainty of its reality. No positive religion can do more for its followers than faith in the revelation through Christ and the prophets did for the Apologists. Although it chiefly proved to them the truth of that which we call natural theology and which was the idealistic philosophy of the age, so that the Church appears as the great insurance society for the ideas of Plato and Zeno, we ought not at the same time to forget that their idea of a divine spirit working upon earth was a far more lively and worthy one than in the case of the Greek philosophers.