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Essays of a Biologist · Julian Huxley — chapter 3 of 35 · ~2,556 words · public domain

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“It is probable that what hindered Kant from broaching his theory of progress with as much confidence as Condorcet was his perception that nothing could be decisively affirmed about the course of civilization until the laws of its movement had been discovered. He saw that this was a matter for future scientific investigation.” --J. B. BURY.

What is the most fundamental need of man? It would be interesting to conduct a plebiscite of such a question, a plebiscite of the same sort that was conducted by one of the French newspapers some years ago, to discover the opinions of its readers as to who was the greatest Frenchman of the century.

When I say the most fundamental need of man, I do not mean those basic needs for food and drink and shelter which he shares with the animals: I mean the most fundamental to him as man, as an organism differing from all other organisms in the power of thought, in reflection and self-consciousness. What variety of answers would be given, I dare not guess; but I hazard the belief that the majority, if the suggestion were put before them, would agree that his deepest need was to discover something, some being or power, some force or tendency, which was moulding the destinies of the world--something not himself, greater than himself, with which he yet felt that he could harmonize his nature, in which he could repose his doubts, through faith in which he could achieve confidence and hope.

That need has been felt by all those to whom life has been more than a problem of the unreflective satisfaction of instincts and desires--however pure those instincts, or beautiful those desires; it has been felt by all in whom the problem of existence has been apprehended by intellect and disinterested imagination.

I say all. There may be rare creatures who, secure in strength of body and mind and in unhampered unfolding of their faculties, possess a confidence by which this need is never felt. They are like those whom Wordsworth drew for us in the “Ode to Duty”:--

“There are who ask not if thine eye Be on them; who, in love and truth, Where no misgiving is, rely Upon the genial sense of youth: Glad hearts! without reproach or blot; Who do thy work and know it not.”

But such are rare; or should we say that their type of mind, though not uncommon in the earlier years of life, only by the rarest chance achieves its course without a descent into that vale where the finite human intellect grapples unequally with infinite problems?

The need has been felt in all ages and in all countries; and the answers, the partial satisfactions of the needs which have been found by the mind of men, are correspondingly diverse.

Savages have endowed the objects around them, living and inanimate, with supernatural qualities. At a higher grade of development they have created gods made with hands, visible images of their fears or their desires, by whose worship and service they assuaged the urgent need within their breast. Still later, turning from such crudity, they became servants and worshippers of unseen gods, conceived under the form of persons, but persons transcending human personality, beings in whom was vested the control of man and of the world.

Up to this point there had been an increase of spirituality in the constructions by which human thought satisfied its need; none the less, the ideas underlying the mode of these constructions had not materially altered. As Voltaire so pungently put it, man had created God in his own image.

What remains? there remains to search in the external world, to find there if possible a foundation of fact for the belief drawn from the inner world of mind, to test the conceptions of a supreme being or supereminent power against ever more and more touchstones of reality, until the most sceptical shall acknowledge that the final construction represents, with whatever degree of incompleteness, yet not a mere fragment educed to fill a void, however inevitable, to satisfy a longing, however natural, but the summary and essence of a body of verifiable fact, having an existence independent of the wishes or ideals of mankind.

It was the striving after some such certainty that led Matthew Arnold to his famous definition of God as “something, not ourselves, which makes for righteousness.” Dissatisfaction with the assertion that belief in a very special and undemonstrable form of Divinity was necessary as an act of faith has, in a large measure, helped the widespread revulsion against orthodox Christianity. It was the need for some external, ascertainable basis for belief which led such different minds as William James and H. G. Wells to approach religion, and in such diverse ways as in the “Varieties of Religious Experience” and in “God the Invisible King.” It is this same need which is leading the representatives of Christianity to lay ever greater stress upon the reality and pragmatic value of the religious experience, less and less upon dogmas and creeds.

It will be my attempt in this brief paper to show how the facts of evolutionary biology provide us, in the shape of a verifiable doctrine of progress, with one of the elements most essential to any such externally-grounded conception of God, to any construction which shall be able to serve as permanent satisfaction of that deepest need whereof we have spoken.

Any such construction must take account of many separate parts of reality. In the first place, it must consider those realities inherent in the mind of man: his desire for goodness; the sense of value which all agree is attached to certain experiences of mystics and to certain religious emotions; his ideals and their importance for the conduct of life. But in the second place it must consider those realities which are independent of man and of his mind--the ascertainable body of hard fact, those things which existed before ever he existed, which would exist were he to disappear, with which he must struggle as best he may. Lastly, there is the need for intermediation between the one and the other reality, between the inner felt and the outer known.

Mr. Wells, if you remember, erected a new trinitarianism, which in broad outlines corresponded with this division. With his particular construction, I do not in many respects agree. But that some form of trinitarianism is a reasonably natural method of symbolizing the inevitable tripleness of inner experience, outer fact, and their interrelation is obvious enough. In the particular trinitarianism of Christianity, the reality apprehended to exist behind the forces of Nature is called the Father, the upspringing force within the mind of man, especially when it seems to transcend individuality and to overflow into what we designate as the mystical, is called the Holy Ghost, and the activity, personal or vicarious, which mediates between the individual and the rest of the universe, reconciling his incompleteness and his failures with its apparent sternness and inexorableness, is called the Son.

Some men lay more weight on one of these aspects than on the others. I know a clergyman of the Church of England who, on being reproached during a theological argument with failure to pay sufficient respect to the doctrine of God the Father, replied: “I am not interested in God the Father”; and I know intellectually-minded men who wish to reject the validity of all religious experience because their minds are so made that they pay more attention to external fact and because their reason refuses to let them agree with the interpretations of fact propounded by most religious bodies. But, for a properly balanced construction, for the finding of something which shall serve not as the basis of a creed for this or that sect, but of a creed for humanity, of something which instead of dividing shall unite, we need all aspects.

The idea of Progress constitutes, as I hope to show, the most important element in the first part of our construction--that which attempts to synthesize the facts of Nature; and besides, no inconsiderable portion of the third, the interrelation of inner and outer.

Readers of Bury’s interesting book on the Idea of Progress will perhaps, with me, have been surprised at the modernity of that conception. He shows how, in antiquity, the idea was never a dominant one, and further that the adumbrations made of it all lacked some element without which it cannot be styled progress in the sense in which that word is used to-day.

Not indeed till the late Renaissance can we say that the idea of Progress became in any real sense incorporated with the common thought of Western civilization. From then to the present it has suffered many vicissitudes. Starting in the XVIIth century as little more than a consciousness of the superiority of the present over the past, in the XVIIIth it changed to a dogma, its adherents claiming that there existed a “Law of Progress” leading inevitably to the perfectioning of humanity. In the XIXth century the dogma was questioned, and thinkers began to put it to the test--the test of comparing theory with historical fact. A new lease of life, however, was given to the idea of a law of progress by the evolution theory; but finally, of late years, there has been a marked reaction, leading not only to a denial of any such inevitable law, but often to a questioning of the very existence of Progress in any shape or form.

It is the business of the philosopher and of the biologist to see whether this scepticism be justified, and to find out by a more scientific approach how much of the doctrine of Progress is valid. To the layman it would seem inevitable, once the validity of the evolution theory was granted, to concede the fact of Progress in some form or another. If we accept the doctrine of evolution, we are bound to believe that man has arisen from mammals, terrestrial from aquatic forms, vertebrates from invertebrates, multicellular from unicellular, and in general the larger and the more complex from the smaller and simpler. To the average man it will appear indisputable that a man is higher than a worm or a polyp, an insect higher than a protozoan, even if he cannot exactly define in what resides this highness or lowness of organic types.

It is, curiously enough, among the professional biologists that objectors to the notion of biological progress and to its corollary, the distinction of higher and lower forms of life, have chiefly been found. I say curiously enough, and yet to a dispassionate observer it is perhaps not so curious, but only one further instance of that common human failing, the inability to see woods because of the trees that compose them.

That is as it may be. Our best course will be to start by examining some of the chief objections to the idea of biological progress, in order to see if they involve errors of thought which we may then avoid.

The most widespread of all the objections raised may, I think, be fairly put as follows: “The fundamental attribute of living beings is adaptation to environment. A man is not better adapted to his environment than the flea which lives upon him as a parasite, or than the bacillus which kills him, nor is a bird better adapted to air than a jelly-fish to water; therefore we have no right to speak of one as higher than the other, or to regard the transition from one type to another as involving progress.”

A second class of objector is prepared to admit that there has been an increase of complexity, an increase in the degree of organization during evolution, but refuses to allow that increase of complexity has any value in itself, whether biological or philosophical, and accordingly refuses to dignify this trend towards greater complexity by the name of progress.

Yet a third difficulty is raised by those who ask us to fix our attention on forms of life like Lingula, the lamp-shell, which, though millions of years elapse, do not evolve. If there exists a Law of Progress, they say, how is it that such creatures are exempt from its operations?

Finally, a somewhat similar attitude is adopted by those who refuse to grant that evolution can involve progress when it has, as we know, brought about well-nigh innumerable degenerations. Granted, for instance, they would say, that the average Crustacean is in many ways an improvement upon the simple form of life from which we must suppose that it arose, yet we know that within the group of Crustacea there are several lines of descent which have led to the production of parasitic forms--animals in which the activity and complex organization of the ancestral type has been sacrificed, and as end-product we are presented with a hateful being, an almost shapeless mass consisting of little else but over-developed reproductive organs and mechanisms for sucking nutriment from its unfortunate host. Such a result is revealed to us in the Crustacean form Sacculina, and is paralleled by countless other examples in almost every class of animals. The degradation of parasites and sedentary types is equally a product of the evolutionary process with the genesis of the ant, the bird or the human being; how then can we call the evolutionary process progressive?

These are important objections. Can they be met? In the broadest way they can and must be met by the only possible method, the method of Science, which consists in examining facts objectively, and by drawing conclusions not a priori, but a posteriori. A law of Nature is not (and I wonder how often this fallacy has been exploded, only to reappear next day)--a law of Nature is not something revealed, not something absolute, not something imposed on phenomena from without or from above; it is no more and no less than a summing-up, in generalized form, of our own observations of phenomena; it is an epitome of fact from which we can draw several conclusions. By beginning in this way from the very beginning, by examining the basis of our mode of thinking in natural science, only thus are we enabled to see at one and the same moment how to investigate the question of progress on the constructive side, and how to neutralize the force of the objections to the idea.

Questions of fact are simple to deal with. It is indubitable that some forms of life remain stationary and unevolving for secular periods; it is equally indubitable that degeneration is widespread in evolution. These are facts. But we are not therefore called upon to deny the possibility of progress. To do so would be to fall into the error of reasoning which we have already condemned. It remains for us to take these facts into account when examining the totality of facts concerning organic life, and to see whether, in spite of them, we cannot discover a series of other facts, a movement in phenomena, which may still legitimately be called progress. To deny progress because of degeneration is really no more legitimate than to assert that, because each wave runs back after it has broken, therefore the tide can never rise.

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