Let not the sceptics then benight themselves in this knowledge of the nature of things, as if divine power cannot bring to pass in an object anything else than what their own experience has shown them to be in its nature. Even the very things which are most commonly known as natural would not be less wonderful nor less effectual to excite surprise in all who beheld them, if men were not accustomed to admire nothing but what is rare. For who that thoughtfully observes the countless multitude of men, and their similarity of nature, can fail to remark with surprise and admiration the individuality of each man's appearance, suggesting to us, as it does, that unless men were like one another, they would not be distinguished from the rest of the animals; while unless, on the other hand, they were unlike, they could not be distinguished from one another, so that those whom we declare to be like, we also find to be unlike? And the unlikeness is the more wonderful consideration of the two; for a common nature seems rather to require similarity. And yet, because the very rarity of things is that which makes them wonderful, we are filled with much greater wonder when we are introduced to two men so like, that we either always or frequently mistake in endeavouring to distinguish between them.