This volume essentially examines the ideology of love, and more precisely love as a life value in Ancient Greece and in Christianity. The understanding of the ancient world presupposes the understanding of its different world-view and ethics. The love affairs of the Gods and the adventures of Aphrodite. Eros and Psyche, the religious festivals with intensely sexual elements of fertility, such as the Dionysian and Thesmophoria festivals, the Hermaic Stelai and the phallic processions. What would life be like, what joy would there be without love? This is how Mimnermos starts one of his poems. Christianity has a different opinion, viewing love as a source of sin. Christianity in the firs five centuries is naturally a part of the history of the ancient world, while its complete domination marks in a well-defined manner the dividing line between the two worlds, since the ideology and practice of Christian religion ferociously clash with Greek religion, resulting in the formation of a totally different world-view and life-stance. And that is particularly the case when it comes to the issue of love, for which Christianity is entirely condemning. And it is by no means a random fact that for Christians, the word Hellene came to be a synonym for pagan. What does Christianity condemn, which are the prohibitions, and which punishments in sexual activity does confessional literature impose, for instance, for a couple's sexual encounter on Sunday? Further, how is masturbation punished, even wet dreams, which are considered sinful, homo-sexuality (male homosexuality), bestiality and bird bestiality, even on the part of clergyman. Finally, the great subject of Love and Eros is extensively explored, together with the love poem from The Old Testament, namely, "The Songs of Songs".