The type of life which Naturalism gives rise to also contains more than Naturalism is able to explain. At first sight it seems as though man is taken up completely into a wider conception of nature; as though his life obeys its forces and impulses exclusively; as though all his asserted superiority to nature is simply imaginary. As a matter of fact, in this turning to nature, man, with his spiritual activity, stands not within, but above, nature. For he does not appear as a mere piece of nature, but experiences it and thinks over it: its kingdom, its organisation, its stability become to him a joyful possession and a widening of his being. The spiritual life has developed in relation to nature; nature has not welded it together. The same may be said of the idea of the increase of power, which constitutes the main gain of life in the naturalistic system. For, in the naturalistic type of life power is not directed towards externals, as in nature, but is experienced and enjoyed, and only thus does it constitute a source of happiness; yet how could it be that, without an organisation of life in an inner unity which transcends individual occurrences? Thus, the intellectual and the technical control of nature which the Modern Age has acquired attracts men and prevails over them chiefly as a growth of life, as an increase of self-reliance. Even material goods, wealth and property, do not determine the endeavour of the man of culture so much through sensuous enjoyment, the limit of which is soon reached, as through their possibilities as means to activity and creation, to the advancement of human capacity. It is this in particular which has filled the material civilisation of the present with the spirit of restlessness and extravagance, and gives it its demoniacal power over men. It is this relation alone which explains and justifies the present estimate of material goods, so much higher as that is in modern culture than it was in the older systems of thought, which branded as unworthy all endeavour directed to the acquirement of such things.
In short, even Naturalism in no way eliminates the subject with its inwardness; rather in its own development it everywhere presupposes the subject. It does not shape life out of mere and pure nature, but out of a close union of a transcendent spiritual life with nature, and out of an energetic insistence upon elements of nature within the soul. However, man experiences not so much the things themselves as himself in the things; the relating together, the surveying, the experiencing of the whole is always a spiritual performance. This performance makes something different out of nature, just as the naturalistic culture that is striven for is different from the state of nature that is found at the beginning. The misconception of the relation of nature to the mind; the postulation of nature without mind, in place of nature with mind, makes Naturalism self-contradictory and untenable. Naturalism therefore struggles vainly against the following dilemma: if it is really in earnest in the elimination of spiritual realities, it must inevitably destroy its own fundamental basis and, as a system of life, must break down; while if it in any way acknowledges a transcendence of nature, and a transcendence just in that which is fundamental to it, then it is necessarily driven beyond itself.
But such contradiction in the basal position must be present through the whole development of Naturalism and must make all its factors variating in colour and double in meaning, since at one and the same time they involve the spiritual element and reject it, eliminate it and bring it into the foreground, the former openly and explicitly, the latter concealedly and implicitly. Such is the case, in particular, with the fundamental conception of the struggle for existence. In the context of Naturalism, this conception can signify nothing else than the preservation of natural existence, of mere life; such a conception, however, is as incapable of comprehending the whole wealth of the work of civilisation and culture as it is of developing within itself. If the preservation of existence in this sense were really the highest aim, then, all the work of humanity, incalculable and great as it is, all the toil and creative activity of history, would be without result; in no way would it lead beyond the starting-point; we should, of course, have life, but nothing along with and in life. Indeed, the movement would be a continual retrogression, for the experience of the present shows us clearly enough that the conflict of life becomes ever more difficult, toilsome, and embittered. If all this toil does not yield more than was possessed in the original condition, that is, physical existence, then this implies that we have to make an ever greater detour to establish that which formerly devolved upon us immediately. In such a case our life would be a continual sinking, a toil continually increasing in difficulty, in order that we might simply be something, without being anything in particular. Or, will anyone assert that there is no retrogression when the achievement of the same aim costs ever more effort, ever more labour and turmoil of spirit?
The fact is that Naturalism also gives to life, which is seen to be thus immersed in conflict, some kind of content, which it conceives as increasing continually in the course of the movement, and as attaining for us through the conflict an ever richer and more comprehensive existence. But how can a conception such as that of the content of life originate in mere nature? How can it be even conceived unless life possesses some consciousness of itself, unless there is a transformation of what is external into something internal—a thing which nature can never accomplish?
With the conception of the struggle for existence, the useful becomes the preponderant power of life; it attempts a transvaluation of all values, since it lays stress rather on the relation of things to us than on their own nature. The conception won acceptance from and power over the minds of men because it was a complete change from the generally accepted explanation, and at the same time seemed to simplify matters greatly. Unfortunately, on further consideration this transformation proves to be a complete reversal of the general scheme of life, indeed a destruction of it. Man, it is true, does not preserve his physical existence without toil; he must continually win it anew, and nothing can occupy him which does not acquire some relation to this necessity and make itself consistent with it. But the further question arises, whether anxiety for the useful is also able to crush out that which is distinctive and characteristic in the world of humanity. If we recognise the limits of the endeavour after the useful, we shall soon become doubtful concerning its claim to be the sole aim of conduct. That endeavour is spent solely on the welfare of the individual; it can never free itself from reference to the individual, and never, beyond that perceived, can it take up anything as an aim in itself. Interest is centred solely upon the external products of the activity of men and of the process of nature, and not at all upon what men and nature are in themselves. We find here nothing but isolated spheres of existence which are devoid alike of inner relation to themselves and to one another.
Now, Naturalism can appeal in its own defence to the fact that real life shows its individual departments to have thousands of inter-relationships, so that the welfare of the individual is inseparably bound up with that of his environment, his family, his home, his state; and that therefore, in order to prosper himself, his endeavour must be for the good of these also. It may even serve his own interest to give up a direct advantage in favour of a greater indirect one. Further, Naturalism is able to assert that, however little the inner disposition of others may affect us directly, this disposition can acquire a value for us in so far as its persistence alone assures to us a continuance of achievement. As considerations of this kind may be extended without limit, there is nothing in the whole breadth of existence which the utilitarian view of life need reject.
But, in the midst of all this extension in breadth, this development of life retains a fixed limitation in its inner nature, which cannot be transcended: we can never strive for the alien, the other, the whole, for its own sake, but only as a means for our own welfare; everything inward becomes a matter of indifference if, sooner or later, it is not transformed into an external result. Human life, however, through its own development has grown beyond this limitation; if not in the breadth of existence, yet in its inner nature and at its highest, it manifests something significantly more. Man is capable of a love which values another, not because it hopes for this or that which is useful from him, but because with the whole of his existence he is valuable to it. Man is capable of a love which can lead him to the willing subordination, indeed the joyful sacrifice, of his own existence; of a love in which the first self dies and a new self is born. “Love is the greatest of all contradictions, and one which the understanding cannot solve, since there is nothing more impenetrable than this individuality of self-consciousness, which is negated, and which yet I should retain as positive” (Hegel). Into what a state of poverty humanity would fall if a genuine love of this kind were struck out of the number of its possessions! But can Naturalism in any way understand and estimate such an inner expansion of the heart, such a Stirbe und Werde A deliverance of life from the mere ego is effected in another direction in work. Of course, work also stands in close relation to the preservation of life; it must demonstrate itself to be in some way useful. But work would never fill the soul and attain to anything great if it did not also become an aim in itself; if it were not carried on in complete submission to the object and according to its requirements. How low all educational endeavour, personal guardianship, all work for humanity would sink; how humanity would lack all self-forgetting devotion to it, all bold pressing forward; and how unintelligible the joy in a life’s vocation would be, if the idea of utility solely and entirely determined conduct, if the chief concern were always how the work paid! Should we not sink, in such a case, into a slavery which would enthral man far more oppressively than any command which a tyrant could be capable of? It is true that on the average level of existence much is turned to the service of the merely useful which was produced from love and work, and this reversal of spiritual goods may be the first thing which comes definitely under our notice. In order, however, even to be so applied and reversed, they must originally have been generated in some manner, and this original generation can never proceed from the useful, but only out of the inner force and compulsion of the object, as, for example, in the case of the great transitions of thought, of artistic creation, and of religious conviction. And, as these have proceeded from inner movements, so they have also brought about powerful inner changes. They have not altered this or that in a given world in order to make it more comfortable to man, but with an energetic revolution have transformed our world from its very foundations, and have constructed a new world in contrast to that which immediately surrounds us. How much or how little individual men, or indeed even mankind as a whole, have appropriated of this; how far man has corresponded and still corresponds to the necessities of his own nature, is a matter and a question in itself: in the spiritual life of humanity the new magnitudes are extant, and they operate here as norms for testing all achievement. At the same time, they show that our life and our nature are of a kind different from what Naturalism represents them to be. However much Naturalism may boast that it is possible for even the highest to be drawn into the service of the merely human, with all its boasting it has not explained the origin of the highest: can a thing proceed from its own shadow? The naturalistic attempt to trace everything back to the useful really reverses the condition of affairs and results in inner destruction wherever disposition stands first. For conduct changes its character completely according as it is regarded as a mere means, or as an end in itself; according as its aim is striven for directly or only indirectly. Do such things as love, fidelity, honour deserve these names if the thought of selfish advantage is their motive power? It lies in the nature of certain things that they must be treated as ends in themselves and as matters of primary concern: to degrade them to a subsidiary position is in their case only a finer kind of destruction; to be opposed to utility is an attribute inseparable from their very being. Where disposition is valued only as a pre-condition of achievement, as in Naturalism, at the highest only a tolerable appearance, a substitute for a genuine disposition, can be reached in the whole moral sphere. Naturalism affords us an example of such a substitution when it sets up an altruistic action, that is, an action which produces something useful to another, in place of an inner expansion of life, which takes the other up inwardly into our own volition and being, and which alone leads beyond egoism. Naturalism is able to overlook all this; is able to make what is the secondary view of things the primary one; the derived, the original; is able to put the relation to human perception in place of the thing itself, only because its interest is so completely occupied with external relations that it does not independently evaluate the inner; and again, because a reflection that appeals to the understanding hinders all immediate relation and spontaneous appropriation. Otherwise, it also would feel how deep, how intolerable, a degradation of man ensues if his innermost experience, his striving after truth, his wrestling for unity within himself, his love, and his suffering are made a mere means to physical self-preservation, and are thus regarded from the point of view of utility. If we glance over the life of universal history, we see that a history of a distinctively human character extricates itself from the machinery of nature only through man’s acquiring an independence over against his environment, evolving a life conscious of itself and from it exerting a transforming power upon all presented to it. Only thus does a civilisation grow up in contrast with the mere state of nature. In civilisation and culture man enters into conflict with the infinity of the external world, but he cannot carry on this conflict victoriously without setting an inner infinity in opposition to that external one. In the struggle between these two worlds the life of man is transformed no less than the appearance of reality. More and more the visible world becomes an expression of an invisible one; more and more life draws the world into itself and finds the chief problems in its own sphere. Thus life becomes raised above simple physical preservation; that which serves in this preservation is regarded as a condition only and as something preliminary.