After the departure of Constantine, the Caesars whom he left in Italy, were continually building in Rome and elsewhere, endeavouring to make these works as good as possible, but as we see, sculpture, painting and architecture were steadily going from bad to worse. This arose perhaps from the fact that when human affairs begin to decline, they grow steadily worse until the time comes when they can no longer deteriorate any further. In the time of Pope Liberius the architects of the day took considerable pains to produce a masterpiece when they built S. Maria Maggiore, but they were not very happy in the result, because although the building, which is also mostly constructed of spoils, is of very fair proportions, it cannot be denied that, not to speak of other defects, the decoration of the church with stucco and painting above the columns is of very poor design, and that many other things to be seen there leave no doubt as to the degradation of the arts. Many years later, when the Christians were suffering persecution under Julian the Apostate, a church was erected on the Celian Hill to SS. John and Paul, the martyrs, in so inferior a style to the others mentioned above that it is quite clear that at that time, art had all but entirely disappeared. The edifices erected in Tuscany at the same time bear out this view to the fullest extent. The church outside the walls of Arezzo, built to St Donato, bishop of that city, who suffered martyrdom with Hilarion the monk, under the same Julian the Apostate, is in no way superior to the others, and this is only one of many. It cannot be contended that such a state of affairs was due to anything but the lack of good architects, since the church in question, which is still standing, has eight sides, and was built of the spoils of the theatre, colosseum and other buildings erected in Arezzo before it was converted to the Christian faith. No expense has been spared, its columns being of granite and porphyry and variegated marble which, had formerly adorned the ancient buildings. For my own part, I have no doubt, seeing the expense incurred, that if the Aretines had been able to employ better architects they would have produced something marvellous, since what they actually accomplished proves that they spared themselves nothing in order to make this building as magnificent and complete as possible. But as architecture had lost less of its excellence than the other arts, as I have often said before, some good things may be seen there. At the same period the church of S. Maria in Grado was enlarged in honour of St Hilarion, who had lived in the city a long time before he accompanied Donato to receive the palm of martyrdom. But as Fortune, when she has brought men to the top of the wheel, either for amusement or because she repents, usually turns them to the bottom, it came to pass after these things that almost all the barbarian nations rose in divers parts of the world against the