Well-nigh all the theories of antique Aesthetic reappear in the Middle Ages, as it were by spontaneous generation. Duns Scotus Erigena translated the Neoplatonic mysticism of the pseudo-Dionysus. The Christian God took the place of the chief Good or Idea: God, wisdom, goodness, supreme beauty are the fountains of natural beauty, and these are steps in the stair of contemplation of the Creator. In this manner speculation began to be diverted from the art fact, which had been so prominent with Plotinus. Thomas Aquinas followed Aristotle in distinguishing the beautiful from the good, and applied his doctrine of imitation to the beauty of the second person of the Trinity (_in quantum est imago expressa Patris_). With the troubadours, we may find traces of the hedonistic view of art, and the rigoristic hypothesis finds in Tertullian and in certain Fathers of the Church staunch upholders. The retrograde Savonarola occupied the same position at a later period. But the narcotic, moralistic, or pedagogic view mostly prevailed, for it best suited an epoch of relative decadence in culture. It suited admirably the Middle Age, offering at once an excuse for the new-born Christian art, and for those works of classical or pagan art which yet survived. Specimens of this view abound all through the Middle Age. We find it, for instance, in the criticism of Virgil, to whose work were attributed four distinct meanings: literal, allegorical, moral, and anagogic. For Dante poetry was _nihil aliud quam fictio rhetorica in musicaque posita_. "If the vulgar be incapable of appreciating my inner meaning, then they shall at least incline their minds to the perfection of my beauty. If from me ye cannot gather wisdom, at the least shall ye enjoy me as a pleasant thing." Thus spoke the Muse of Dante, whose _Convivio_ is an attempt to aid the understanding in its effort to grasp the moral and pedagogic elements of verse. Poetry was the _gaia scienza_, "a fiction containing many useful things covered or veiled." It would be inexact to identify art in the Middle Age with philosophy and theology. Its pleasing falsity could be adapted to useful ends, much in the same way as matrimony excuses love and sexual union. This, however, implies that for the Middle Age the ideal state was celibacy; that is, pure knowledge, divorced from art. The only line of explanation that was altogether neglected in the Middle Age was the right one.