And if we look for the literature of the schools of thought which were ultimately branded as heretical, we look almost wholly in vain. What the earliest Christian philosophers thought, we know, with comparatively insignificant exceptions, only from the writings of their opponents. They were subject to a double hate—that of the heathen schools which they had left, and that of the Christians who were saying “Non possumus” to philosophy.[3] The little trust that we can place in the accounts which their opponents give of them is shown by the wide differences in those accounts. Each opponent, with the dialectical skill which was common at the time, selected, paraphrased, distorted, and re-combined the points which seemed to him to be weakest. The result is, naturally, that the accounts which the several opponents give are so different in form and feature as to be irreconcilable with one another.[4] It was so also with the heathen opponents of Christianity.[5] With one important exception, we cannot tell how the new religion struck a dispassionate outside observer, or why it was that it left so many philosophers outside its fold. Then, as now, the forces of human nature were at work. The tendency to disparage and suppress an opponent is not peculiar to the early ages of Christianity. When the associated Christian communities won at length their hard-fought battle, they burned the enemy’s camp. This fact of the scantiness and inadequacy of the evidence as to the process of transformation has led to two results which constitute difficulties and dangers in our path. 1. The one is the tendency to overrate the value of the evidence that has survived. When only two or three monuments of a great movement remain, it is difficult to appreciate the degree in which those monuments are representative. We tend at almost all times to attach an exaggerated importance to individual writers; the writers who have moulded the thoughts of their contemporaries, instead of being moulded by them, are always few in number and exceptional. We tend also to attach an undue importance to phrases which occur in such writers; few, if any, writers write with the precision of a legal document, and the inverted pyramids which have been built upon chance phrases of Clement or Justin are monuments of caution which we shall do well to keep before our eyes.