Professor Jackson thus describes the present ruined condition of the city: “The crumbling walls of the dead city were once broad and lofty ramparts of clay and rubble, much like those already mentioned at Bustam and Rei, but they had become much flattened with the lapse of ages, although traces of their towers were still to be seen, while their outline showed the contour of the town, which must have formed a very irregular quadrilateral, following roughly the points of the compass.... The scene, as we saw it, presented a strange paradox of the destructive effects of the hand of man, and the eternal power of nature to rise and bloom again. The devastating inroads of the Ghuzz hordes and the Mongol armies, aided by earthquakes, had indeed laid mighty Tus in ruins: but its dust still contains the resurrection seed of flowers and grain, bringing life anew in the midst of death. Acres of barley and fields of thick clover spread their rich green on all sides, in contrast with stretches of arid waste that told only too well the story of ruin wrought in the past.” Professor Jackson goes on to say: “It is clear that the ruined site of Tus we have been examining, with the Rudbar and Rizan Gates, formed part of the borough of Tabaran, an important section of the town in Firdausi’s day, when the city covered a large area comprising several thickly populated centres, as we know from the Oriental geographers of the tenth century, or the period covering the better portion of the poet’s life. It was in Tabaran that Al-Ghazali was buried, and there he must have had his home during the closing years of his life.”[18] Religious disputation must have been the very atmosphere of Tus. Christians were numerous and the Moslem _Shiahs_ were almost as strong as the orthodox. Some of their most celebrated writers and scholars, for example Abu Jaʾfar Muhammed, were born at Tus; and Ibn Abi Hatim, one of the earliest and most important critics of the science of Tradition, died at Tus in 939. In spite of its learned men, however, Tus did not have a high reputation, as we know from the following anecdote related of Ibn-Habbariyya. He was asked by an enemy of Nizam Al-Mulk to compose a satire on this ruler. “How can I attack a man to whose kindness I owe everything I see in my house?” asked the poet. However, on being pressed, he penned these lines: “What wonder is it that Nizam Al-Mulk should rule, And that Fate should be on his side? Fortune is like the water-wheel Which raises water from the well— None but _oxen_ can turn it!” When the vizier was informed of this attack upon him, he merely remarked that the poet had simply intended to allude to his origin—he came from Tus in Khorasan, and, according to a popular saying, all the men of Tus were oxen (one would say asses, nowadays).