"People canvass up and down the value and utility of Christianity, and none of them seem to see that it was the common channel towards which all the great streams of thought in the old world were tending, and that in some form or other when they came to unite it must have been. That it crystallized round a particular person may have been an accident; but in its essence, as soon as the widening intercourse of the nations forced the Jewish mind into contact with the Indian and the Persian and the Grecian, such a religion was absolutely inevitable. It was the development of Judaism in being the fulfilment of the sacrificial theory, and the last and purest conception of a personal God lying close above the world, watching, guiding, directing, interfering. Its object was no longer the narrow one of the temporal interests of a small people. The chrysalis had burst its shell, and the presiding care extended to all mankind, caring not now for bodies only but for souls. It was the development of Parsism in settling finally the vast question of the double principle, the position of the evil spirit, his history, and the method of his defeat; while Zoroaster's doctrine of a future state was now for the first time explained and justified; and his invisible world of angels and spirits, and the hierarchies of the seven heavens, were brought in subjection to the same one God of the Jews."