As for Krall, he does not doubt for an instant that his horses solve for themselves, without any assistance, without any outside influence, simply by their own mental powers, the most arduous problems set them. He is persuaded that they understand what is said to them and what they say, in short, that their brain and their will perform exactly the same functions as a human brain and will. It is certain that the facts seem to prove him right and that his opinion carries way great weight, for, after all, he knows his horses better than any one does; he has beheld the birth or rather the awakening of that dormant intelligence, even as a mother beholds the birth or the awakening of intelligence in her child; he has perceived its first gropings, known its first resistance and its first triumphs; he has watched it taking shape, breaking away and gradually rising to the point at which it stands to-day; in a word, he is the father and the principal and sole perpetual witness of the miracle. 19 Yes, but the miracle comes as such a surprise that, the moment we set foot in it, a sort of instinctive aberration seizes us, refusing to accept the evidence and compelling us to search in every direction to see if there is not another outlet. Even in the presence of those astounding horses and while they are working before our eyes, we do not yet sincerely believe that which fills and subdues our gaze. We accept the facts, because there is no means of escaping them; but we accept them only provisionally and with all reserve, putting off till later the comfortable explanation which will give us back our familiar, shallow certainties. But the explanation does not come; there is none in the homely and not very lofty regions wherein we hoped to find one; there is neither fault nor flaw in the mighty evidence; and nothing delivers us from the mystery.