It is sheer folly for the Church to comfort herself with the reflection that this is not the first time in the history of Christianity that disbelief has manifested itself. In the early days of the Church the heretic was not in possession of the knowledge that we have since acquired. He could not support his views, as he can now, with the facts of science. At every step he could be met by arguments which he had no adequate means of refuting, and if he dared to deny the "supernatural" there was an enormous preponderance of public opinion against him. Indeed, he himself generally believed in the "supernatural," though he was sceptical of the particular evidence of it on which Christianity had been founded. Retarded by Christianity itself--or, shall we say, by its interpreters?--knowledge was unable to advance; it receded, and the clock was put back in scientific research. Darkness reigned supreme for over a thousand years. At last the dawn began to break. What was the result? The children of light suffered for their temerity; but their ideas were eventually absorbed, and beliefs were suitably reformed. Thus the Copernican system was gradually accepted, and so were the discoveries which followed, up to fifty years ago. Then, however, the established beliefs received shock after shock in rapid succession--shocks from which they do not yet show any promise of recovering. The myriads of worlds in the processes of birth and death; the vast antiquity of the earth; the long history of man and his animal origin; the reign of natural law, and the consequent discredit of the supernatural; the suspicions aroused by the study of comparative mythology; the difficulties of "literal inspiration"; the doubt thrown by the Higher Criticism on many cherished beliefs--these and the like have shaken the very foundations of our faith, and are the cause of agnosticism among the vast majority of our leaders of thought and science.