The influence of the hypothesis of evolution on religion was not long in making itself felt. Professor Huxley explained the rapid success of Darwinism by saying that the scientific world was ready for it. And much the same thing may be said of the better representatives of the intellectual world with regard to the bearing of evolution on religion. In many directions the cultivated mind had for more than half a century been getting familiar with the general conception of growth in human life and thought. Where earlier generations had seen no more than a pattern to unravel there had developed a conviction that there was a history to trace and to understand. Distant parts of the world had been brought together during the seventeenth and the eighteenth centuries, readers and students were getting familiarized with the mass of customs and religious ideas that were possessed by these peoples, and it was perceived that beneath the bewildering variety of man's mental output there were certain features which they had in common, and which might hold in solution some common principle or principles. This common principle was found in the conception of evolution. It was the one thing which, if true, and apart from the impossible idea of a revelation, nicely graduated to the capacities of different races, offered an explanation of the religions of the world in terms more satisfactory than those of deliberate invention or imposture. Once it was accepted, if only as an instrument of investigation, its use was soon justified. And the thorough-going nature of the conquest achieved is in no wise more clearly manifested than in the fact that the conception of growth is, to-day, not merely an accepted principle with scientific investigators, it has sunk deeply into all our literature and forms an unconscious part of popular thought. One aspect of the influence of evolution on religious ideas has already been noted. It made the religious idea but one of the many forms that were assumed by man's attempt to reduce his experience of the world to something like an orderly theory. But that carried with it, for religion, the danger of reducing it to no more than one of the many theories of things which man forms, with the prospect of its rejection as a better knowledge of the world develops. Evolution certainly divested religion of any authority save such as it might contain in itself, and that is a position a religious mind can never contemplate with equanimity.