Chesterton on human exceptionalism:
There is not a particle of proof that this transition [ from beast to man] came slowly or even that it came naturally. In a strictly scientific sense we simply know nothing whatever about how it grew, or whether it grew, or what it is. There may be a broken trail of stones and bones faintly suggesting the development of the human body. There is nothing even faintly suggesting such a development of this human mind. It was not and it was; we know not in what instant or in what infinity of years. Something happened; and it has all the appearance of a transaction outside time. It has therefore nothing to do with history in the ordinary sense. The historian must take it or something like it for granted; it is not his business as a historian to explain it. But if be cannot explain it as a historian, he will not explain it as a biologist. In neither case is there any disgrace to him in accepting it without explaining it; for it is a reality, and history and biology deal with realities. He is quite justified in calmly confronting the pig with wings and the cow that jumped over the moon, merely because they have happened. He can reasonably accept man as a freak, because he accepts man as a fact. He can be perfectly comfortable in a crazy and disconnected world, or in a world that can produce such a crazy and disconnected thing. For reality is a thing in which we can all repose, even if it hardly seems related to anything else. The thing is there; and that is enough for most of us. But if we do indeed want to know how it can conceivably have come there, if we do indeed wish to see it related realistically to other things, if we do insist on seeing it evolved before our very eyes from an environment nearer to its own nature, then assuredly it is to very different things that we must go. We must stir very strange memories and return to very simple dreams, if we desire some origin that can make man other than a monster. We shall have discovered very different causes before he becomes a creature of causation; and invoked other authority to turn him into something reasonable, or even into anything probable That way lies all that is at once awful and familiar and forgotten, with dreadful faces thronged and fiery arms. We can accept man as a fact, if we are content with an unexplained fact. We can accept him as an animal, if we can live with a fabulous animal. But if we must needs have sequence and necessity, then indeed we must provide a prelude and crescendo of mounting miracles, that ushered in with unthinkable thunders in all the seven heavens of another order a man may be an ordinary thing.
That's why he says that man is: "... rather more supernatural as a natural product than as a supernatural one. "