There can be no question that such a gap existed in early Christian art. What has been praised in it as deliberate simplification, masterly concentration or conscious idealizing and intensifying of the actual is in reality often just incapacity and poverty, just a helpless inability to render natural forms correctly, and a primitive bungling of the drawing. This clumsiness and ungainliness of early Christian art is not mastered until after the Edict of Toleration, when it became the official art of state and court, of aristocratic and educated circles.

The Social History of Art, Volume I. From Prehistoric Times to the Middle Ages, 1999 - Chapter IV. The Middle Ages