Authors: C. S. Lewis
But this, as it seems to me, is what Naturalism is bound to do. It offers what professes to be a full account of our mental behaviour; but this account, on inspection, leaves no room for the acts of knowing or insight on which the whole value of our thinking, as a means to truth, depends.
It is agreed on all hands that reason, and even sentience, and life itself are late comers in Nature. If there is nothing
but Nature, therefore, reason must have come into existence by a historical process. And of course, for the Naturalist, this process was not designed to produce a mental behaviour that can find truth. There was no Designer; and indeed, until there were thinkers, there was no truth or falsehood. The type of mental behaviour we now call rational thinking or inference must therefore have been ‘evolved’ by natural selection, by the gradual weeding out of types less fitted to survive.
Once, then, our thoughts were not rational. That is, all our thoughts once were, as many of our thoughts still are, merely subjective events, not apprehensions of objective truth. Those which had a cause external to ourselves at all were (like our pains) responses to stimuli. Now natural selection could operate only by eliminating responses that were biologically hurtful and multiplying those which tended to survival. But it is not conceivable that any improvement of responses could ever turn them into acts of insight, or even remotely tend to do so. The relation between response and stimulus is utterly different from that between knowledge and the truth known. Our physical vision is a far more useful response to light than that of the cruder organisms which have only a photo-sensitive spot. But neither this improvement nor any possible improvements we can suppose could bring it an inch nearer
to being a knowledge of light. It is admittedly something without which we could not have had that knowledge. But the knowledge is achieved by experiments and inferences from them, not by refinement of the response. It is not men with specially good eyes who know about light, but men who have studied the relevant sciences. In the same way our psychological responses to our environment—our curiosities, aversions, delights, expectations—could be indefinitely improved (from the biological point of view) without becoming anything more than responses. Such perfection of the non-rational responses, far from amounting to their conversion into valid inferences, might be conceived as a different method of achieving survival—an alternative to reason. A conditioning which secured that we never felt delight except in the useful nor aversion save from the dangerous, and that the degrees of both were exquisitely proportional to the degree of real utility or danger in the object, might serve us as well as reason or in some circumstances better.
Besides natural selection there is, however, experience—experience originally individual but handed on by tradition and instruction. It might be held that this, in the course of millennia, could conjure the mental behaviour we call reason—in other words, the practice of inference—out of a mental behaviour which was originally not rational.
Repeated experiences of finding fire (or the remains of fire) where he had seen smoke would condition a man to expect fire whenever he saw smoke. This expectation, expressed in the form ‘If smoke, then fire’ becomes what we call inference. Have all our inferences originated in that way?
But if they did they are all invalid inferences. Such a process will no doubt produce expectation. It will train men to expect fire when they see smoke in just the same way as it trained them to expect that all swans would be white (until they saw a black one) or that water would always boil at 212° (until someone tried a picnic on a mountain). Such expectations are not inferences and need not be true. The assumption that things which have been conjoined in the past will always be conjoined in the future is the guiding principle not of rational but of animal behaviour. Reason comes in precisely when you make the inference ‘Since always conjoined, therefore probably connected’ and go on to attempt the discovery of the connection. When you have discovered what smoke is you may then be able to replace the mere expectation of fire by a genuine inference. Till this is done reason recognises the expectation as a mere expectation. Where this does not need to be done—that is, where the inference depends on an axiom—we do not appeal to past experience at all. My belief that things which are equal to the same thing are equal to one
another is not at all based on the fact that I have never caught them behaving otherwise. I see that it ‘must’ be so. That some people nowadays call axioms tautologies seems to me irrelevant. It is by means of such ‘tautologies’ that we advance from knowing less to knowing more. And to call them tautologies is another way of saying that they are completely and certainly known. To see fully that A implies B does (once you have seen it) involve the admission that the assertion of A and the assertion of B are at bottom in the same assertion. The degree to which any true proportion is a tautology depends on the degree of your insight into it. 9 × 7 = 63 is a tautology to the perfect arithmetician, but not to the child learning its tables nor to the primitive calculator who reached it, perhaps, by adding seven nines together. If Nature is a totally interlocked system, then every true statement about her (e.g. there was a hot summer in 1959) would be a tautology to an intelligence that could grasp that system in its entirety. ‘God is love’ may be a tautology to the seraphim; not to men.
‘But’, it will be said, ‘it is incontestable that we do in fact reach truths by inferences’. Certainly. The Naturalist and I both admit this. We could not discuss anything unless we did. The difference I am submitting is that he gives, and I do not, a history of the evolution of reason which is inconsistent with the claims that he and I both have to make for
inference as we actually practise it. For his history is, and from the nature of the case can only be, an account, in Cause and Effect terms, of how people came to think the way they do. And this of course leaves in the air the quite different question of how they could possibly be justified in so thinking. This imposes on him the very embarrassing task of trying to show how the evolutionary product which he has described could also be a power of ‘seeing’ truths.
But the very attempt is absurd. This is best seen if we consider the humblest and almost the most despairing form in which it could be made. The Naturalist might say, ‘Well, perhaps we cannot exactly see—not yet—how natural selection would turn sub-rational mental behaviour into inferences that reach truth. But we are certain that this in fact has happened. For natural selection is bound to preserve and increase useful behaviour. And we also find that our habits of inference are in fact useful. And if they are useful they must reach truth’. But notice what we are doing. Inference itself is on trial: that is, the Naturalist has given an account of what we thought to be our inferences which suggests that they are not real insights at all. We, and he, want to be reassured. And the reassurance turns out to be one more inference (if useful, then true)—as if this inference were not, once we accept his evolutionary picture,
under the same suspicion as all the rest. If the value of our reasoning is in doubt, you cannot try to establish it by reasoning. If, as I said above, a proof that there are no proofs is nonsensical, so is a proof that there are proofs. Reason is our starting point. There can be no question either of attacking or defending it. If by treating it as a mere phenomenon you put yourself outside it, there is then no way, except by begging the question, of getting inside again.
A still humbler position remains. You may, if you like, give up all claim to truth. You may say simply ‘Our way of thinking is useful’—without adding, even under your breath, ‘and therefore true’. It enables us to set a bone and build a bridge and make a Sputnik. And that is good enough. The old, high pretensions of reason must be given up. It is a behaviour evolved entirely as an aid to practice. That is why, when we use it simply for practice, we get along pretty well; but when we fly off into speculation and try to get general views of ‘reality’ we end in the endless, useless, and probably merely verbal, disputes of the philosopher. We will be humbler in future. Goodbye to all that. No more theology, no more ontology, no more metaphysics…
But then, equally, no more Naturalism. For of course Naturalism is a prime specimen of that towering speculation, discovered from practice and going far beyond
experience, which is now being condemned. Nature is not an object that can be presented either to the senses or the imagination. It can be reached only by the most remote inferences. Or not reached, merely approached. It is the hoped for, the assumed, unification in a single interlocked system of all the things inferred from our scientific experiments. More than that, the Naturalist, not content to assert this, goes on to the sweeping negative assertion. ‘There is nothing except this’—an assertion surely, as remote from practice, experience, and any conceivable verification as has ever been made since men began to use their reason speculatively. Yet on the present view, the very first step into such a use was an abuse, the perversion of a faculty merely practical, and the source of all chimeras.
On these terms the Theist’s position must be a chimera nearly as outrageous as the Naturalist’s. (Nearly, not quite; it abstains from the crowning audacity of a huge negative). But the Theist need not, and does not, grant these terms. He is not committed to the view that reason is a comparatively recent development moulded by a process of selection which can select only the biologically useful. For him, reason—the reason of God—is older than Nature, and from it the orderliness of Nature, which alone enables us to know her, is derived. For him, the human mind in the act of knowing is illuminated by the Divine reason. It is set free, in the mea
sure required, from the huge nexus of non-rational causation; free from this to be determined by the truth known. And the preliminary processes within Nature which led up to this liberation, if there were any, were designed to do so.
To call the act of knowing—the act, not of remembering that something was so in the past, but of ‘seeing’ that it must be so always and in any possible world—to call this act ‘supernatural’, is some violence to our ordinary linguistic usage. But of course we do not mean by this that it is spooky, or sensational, or even (in any religious sense) ‘spiritual’. We mean only that it ‘won’t fit in’; that such an act, to be what it claims to be—and if it is not, all our thinking is discredited—cannot be merely the exhibition at a particular place and time of that total, and largely mindless, system of events called ‘Nature’. It must break sufficiently free from that universal chain in order to be determined by what it knows.
It is of some importance here to make sure that, if vaguely spatial imagery intrudes (and in many minds it certainly will), it should not be of the wrong kind. We had better not envisage our acts of reason as something ‘above’ or ‘behind’ or ‘beyond’ Nature. Rather ‘this side of Nature’—if you must picture spatially, picture them between us and her. It is by inferences that we build up the idea of Nature at all. Reason is given before Nature and on reason our
concept of Nature depends. Our acts of inference are prior to our picture of Nature almost as the telephone is prior to the friend’s voice we hear by it. When we try to fit these acts into the picture of Nature we fail. The item which we put into that picture and label ‘Reason’ always turns out to be somehow different from the reason we ourselves are enjoying and exercising while we put it in. The description we have to give of thought as an evolutionary phenomenon always makes a tacit exception in favour of the thinking which we ourselves perform at that moment. For the one can only, like any other particular feat, exhibit, at particular moments in particular consciousnesses, the general and for the most part non-rational working of the whole interlocked system. The other, our present act, claims and must claim, to be an act of insight, a knowledge sufficiently free from non-rational causation to be determined (positively) only by the truth it knows. But the imagined thinking which we put into the picture depends—because our whole idea of Nature depends—on the thinking we are actually doing, not vice versa. This is the prime reality, on which the attribution of reality to anything else rests. If it won’t fit into Nature, we can’t help it. We will certainly not, on that account, give it up. If we do, we should be giving up Nature too.
Throughout the long tradition of European thought it has been said, not by everyone but by most people, or at any rate by most of those who have proved that they have a right to be heard, that Nature, though it is a thing that really exists, is not a thing that exists in itself or in its own right, but a thing which depends for its existence upon something else.
R. G. COLLINGWOOD
,
The Idea of Nature,
III iii.
If our argument has been sound, acts of reasoning are not interlocked with the total interlocking system of Nature as all its other items are interlocked with one another. They are connected with it in a different way; as the understanding of a machine is certainly connected with the machine but not in the way the parts of the machine are connected with each other. The knowledge of a thing is not one of the
thing’s parts. In this sense something beyond Nature operates whenever we reason. I am not maintaining that consciousness as a whole must necessarily be put in the same position. Pleasures, pains, fears, hopes, affections and mental images need not. No absurdity would follow from regarding them as parts of Nature. The distinction we have to make is not one between ‘mind’ and ‘matter’, much less between ‘soul’ and ‘body’ (hard words, all four of them) but between Reason and Nature: the frontier coming not where the ‘outer world’ ends and what I should ordinarily call ‘myself’ begins, but between reason and the whole mass of non-rational events whether physical or psychological.
At that frontier we find a great deal of traffic but it is all one-way traffic. It is a matter of daily experience that rational thoughts induce and enable us to alter the course of Nature—of physical nature when we use mathematics to build bridges, or of psychological nature when we apply arguments to alter our own emotions. We succeed in modifying physical nature more often and more completely than we succeed in modifying psychological nature, but we do at least a little to both. On the other hand, Nature is quite powerless to produce rational thought: not that she never modifies our thinking but that the moment she does so, it ceases (for that very reason) to be rational. For, as we
have seen, a train of thought loses all rational credentials as soon as it can be shown to be wholly the result of non-rational causes. When Nature, so to speak, attempts to do things to rational thoughts she only succeeds in killing them. That is the peculiar state of affairs at the frontier. Nature can only raid Reason to kill; but Reason can invade Nature to take prisoners and even to colonise. Every object you see before you at this moment—the walls, ceiling, and furniture, the book, your own washed hands and cut fingernails, bears witness to the colonisation of Nature by Reason: for none of this matter would have been in these states if Nature had had her way. And if you are attending to my argument as closely as I hope, that attention also results from habits which Reason has imposed on the natural ramblings of consciousness. If, on the other hand, a toothache or an anxiety is at this very moment preventing you from attending, then Nature is indeed interfering with your consciousness: but not to produce some new variety of reasoning, only (as far as in her lies) to suspend Reason altogether.
In other words the relation between Reason and Nature is what some people call an Unsymmetrical Relation. Brotherhood is a symmetrical relation because if A is the brother of B, B is the brother of A. Father-and-son is an unsymmetrical relation because if A is the father of B, B is
not
the father of A. The relation between Reason and Nature is of this kind. Reason is not related to Nature as Nature is related to Reason.
I am only too well aware how shocking those who have been brought up to Naturalism will find the picture which begins to show itself. It is, frankly, a picture in which Nature (at any rate on the surface of our own planet) is perforated or pock-marked all over by little orifices at each of which something of a different kind from herself—namely reason—can do things to her. I can only beg you, before you throw the book away, to consider seriously whether your instinctive repugnance to such a conception is really rational, or whether it is only emotional or aesthetic. I know that the hankering for a universe which is all of a piece, and in which everything is the same sort of thing as everything else—a continuity, a seamless web, a democratic universe—is very deep-seated in the modern heart: in mine, no less than in yours. But have we any real assurance that things are like that? Are we mistaking for an intrinsic probability what is really a human desire for tidiness and harmony? Bacon warned us long ago that ‘the human understanding is of its own nature prone to suppose the existence of more order and regularity in the world than it finds. And though there be many things which are singular and unmatched, yet it devises for them parallels and conju
gates and relatives which do not exist. Hence the fiction that all celestial bodies move in perfect circles’ (
Novum Organum
, I, 45). I think Bacon was right. Science itself has already made reality appear less homogeneous than we expected it to be: Newtonian atomism was much more the sort of thing we expected (and desired) than Quantum physics.
If you can, even for the moment, endure the suggested picture of Nature, let us now consider the other factor—the Reasons, or instances of Reason, which attack her. We have seen that rational thought is not part of the system of Nature. Within each man there must be an area (however small) of activity which is outside or independent of her. In relation to Nature, rational thought goes on ‘of its own accord’ or exists ‘on its own’. It does not follow that rational thought exists
absolutely
on its own. It might be independent of Nature by being dependent on something else. For it is not dependence simply but dependence on the non-rational which undermines the credentials of thought. One man’s reason has been led to see things by the aid of another man’s reason, and is none the worse for that. It is thus still an open question whether each man’s reason exists absolutely on its own or whether it is the result of some (rational) cause—in fact, of some other Reason. That other Reason might conceivably be found to depend on a
third, and so on; it would not matter how far this process was carried provided you found Reason coming from Reason at each stage. It is only when you are asked to believe in Reason coming from non-reason that you must cry Halt, for, if you don’t, all thought is discredited. It is therefore obvious that sooner or later you must admit a Reason which exists absolutely on its own. The problem is whether you or I can be such a self-existent Reason.
This question almost answers itself the moment we remember what existence ‘on one’s own’ means. It means that kind of existence which Naturalists attribute to ‘the whole show’ and Supernaturalists attribute to God. For instance, what exists on its own must have existed from all eternity; for if anything else could make it begin to exist then it would not exist on its own but because of something else. It must also exist incessantly: that is, it cannot cease to exist and then begin again. For having once ceased to be, it obviously could not recall itself to existence, and if anything else recalled it it would then be a dependent being. Now it is clear that my Reason has grown up gradually since my birth and is interrupted for several hours each night. I therefore cannot be that eternal self-existent Reason which neither slumbers nor sleeps. Yet if any thought is valid, such a Reason must exist and must be the source of my own imperfect and intermittent rationality.
Human minds, then, are not the only supernatural entities that exist. They do not come from nowhere. Each has come into Nature from Supernature: each has its tap-root in an eternal, self-existent, rational Being, whom we call God. Each is an offshoot, or spearhead, or incursion of that Supernatural reality into Nature.
Some people may here raise the following question. If Reason is sometimes present in my mind and sometimes not, then, instead of saying that ‘I’ am a product of eternal Reason, would it not be wiser to say simply that eternal Reason itself occasionally works through my organism, leaving me a merely natural being? A wire does not become something other than a wire because an electric current has passed through it. But to talk thus is, in my opinion, to forget what reasoning is like. It is not an object which knocks against us, nor even a sensation which we feel. Reasoning doesn’t ‘happen to’ us: we
do
it. Every train of thought is accompanied by what Kant called ‘the
I think’
. The traditional doctrine that I am a creature to whom God has given reason but who is distinct from God seems to me much more philosophical than the theory that what appears to be my thinking is only God’s thinking through me. On the latter view it is very difficult to explain what happens when I think correctly but reach a false conclusion because I have been misinformed about facts. Why God—who
presumably knows the real facts—should be at the pains to think one of His perfectly rational thoughts through a mind in which it is bound to produce error, I do not understand. Nor indeed do I understand why, if all ‘my’ valid thinking is really God’s, He should either Himself mistake it for mine or cause me to mistake it for mine. It seems much more likely that human thought is not God’s but God-kindled.
I must hasten, however, to add that this is a book about miracles, not about everything. I am attempting no full doctrine of man:
1
and I am not in the least trying to smuggle in an argument for the ‘immortality of the soul’. The earliest Christian documents give a casual and unemphatic assent to the belief that the supernatural part of a man survives the death of the natural organism. But they are very little interested in the matter. What they are intensely interested in is the restoration or ‘resurrection’ of the whole composite creature by a miraculous divine act: and until we have come to some conclusion about miracles in general we shall certainly not discuss that. At this stage the super-natural element in man concerns us solely as evidence that something beyond Nature exists. The dignity and destiny
of man have, at present, nothing to do with the argument. We are interested in man only because his rationality is the little tell-tale rift in Nature which shows that there is something beyond or behind her.
In a pond whose surface was completely covered with scum and floating vegetation, there might be a few water-lilies. And you might of course be interested in them for their beauty. But you might also be interested in them because from their structure you could deduce that they had stalks underneath which went down to roots in the bottom. The Naturalist thinks that the pond (Nature—the great event in space and time) is of an indefinite depth—that there is nothing but water however far you go down. My claim is that some of the things on the surface (i.e. in our experience) show the contrary. These things (rational minds) reveal, on inspection, that they at least are not floating but attached by stalks to the bottom. Therefore the pond has a bottom. It is not pond, pond for ever. Go deep enough and you will come to something that is not pond—to mud and earth and then to rock and finally the whole bulk of Earth and the subterranean fire.
At this point it is tempting to try whether Naturalism cannot still be saved. I pointed out in Chapter II that one could remain a Naturalist and yet believe in a certain kind of God—a cosmic consciousness to which ‘the whole
show’ somehow gave rise: what we might call an
Emergent
God. Would not an Emergent God give us all we need? Is it really necessary to bring in a
super
-natural God, distinct from and outside the whole interlocked system? (Notice, Modern Reader, how your spirits rise—how much more at home you would feel with an emergent, than with a transcendent, God—how much less primitive, repugnant, and naïf the emergent conception seems to you. For by that, as you will see later, there hangs a tale).
But I am afraid it will not do. It is, of course, possible to suppose that when all the atoms of the universe got into a certain relation (which they were bound to get into sooner or later) they would give rise to a universal consciousness. And it might have thoughts. And it might cause those thoughts to pass through our minds. But unfortunately its own thoughts, on this supposition, would be the product of non-rational causes and therefore, by the rule which we use daily, they would have no validity. This cosmic mind would be, just as much as our own minds, the product of mindless Nature. We have not escaped from the difficulty, we have only put it a stage further back. The cosmic mind will help us only if we put it at the beginning, if we suppose it to be, not the product of the total system, but the basic, original, self-existent Fact which exists in its own right. But to admit
that
sort of cosmic mind is to admit a God outside
Nature, a transcendent and supernatural God. This route, which looked like offering an escape, really leads us round again to the place we started from.
There is, then, a God who is not a part of Nature. But nothing has yet been said to show that He must have created her. Might God and Nature be both self-existent and totally independent of each other? If you thought they were you would be a Dualist and would hold a view which I consider manlier and more reasonable than any form of Naturalism. You might be many worse things than a Dualist, but I do not think Dualism is true. There is an enormous difficulty in conceiving two things which simply co-exist and have no other relation. If this difficulty sometimes escapes our notice, that is because we are the victims of picture-thinking. We really imagine them side by side in some kind of space. But of course if they were both in a common space, or a common time, or in any kind of common medium whatever, they would both be parts of a system, in fact of a ‘Nature’. Even if we succeed in eliminating such pictures, the mere fact of our trying to think of them together slurs over the real difficulty because, for that moment anyway, our own mind is the common medium. If there can be such a thing as sheer ‘otherness’, if things can co-exist and no more, it is at any rate a conception which my mind cannot form. And in the present instance it seems
specially gratuitous to try to form it, for we already know that God and Nature have come into a certain relation. They have, at the very least, a relation—almost, in one sense, a common frontier—in every human mind.
The relations which arise at that frontier are indeed of a most complicated and intimate sort. That spearhead of the Supernatural which I call my reason links up with all my natural contents—my sensations, emotions, and the like—so completely that I call the mixture by the single word ‘me’. Again, there is what I have called the unsymmetrical character of the frontier relations. When the physical state of the brain dominates my thinking, it produces only disorder. But my brain does not become any less a brain when it is dominated by Reason: nor do my emotions and sensations become any the less emotions and sensations. Reason saves and strengthens my whole system, psychological and physical, whereas that whole system, by rebelling against Reason, destroys both Reason and itself. The military metaphor of a spearhead was apparently ill-chosen. The supernatural Reason enters my natural being not like a weapon—more like a beam of light which illuminates or a principle of organisation which unifies and develops. Our whole picture of Nature being ‘invaded’ (as if by a foreign enemy) was wrong. When we actually examine one of these invasions it looks much more like the arrival of a king
among his own subjects or a mahout visiting his own elephant. The elephant may run amuck, Nature may be rebellious. But from observing what happens when Nature obeys it is almost impossible not to conclude that it is her very ‘nature’ to be a subject. All happens
as if
she had been designed for that very role.