At each step, then, which man takes on the road of civilisation, his wants embrace a wider and more extended circle, and the means of existence, the point where the laws of multiplication and limitation meet, is removed and elevated. For although man is susceptible of deterioration as well as of improvement, he aspires after the one and shuns the other. His efforts all tend to maintain the rank he has gained, and to rise still higher; and habit, which has been so well called a second nature, performs the part of the valves of our arterial system, by checking every retrograde tendency. It is very natural, then, that the intelligent and moral control which man exercises over his own multiplication should partake of the nature of these efforts to rise, and be combined and mixed up with his progressive tendencies.
The consequences which result from this organization are numerous. We shall confine ourselves to pointing out a few of them. First of all, we admit with the Economists that population and the means of existence come to an equilibrium; but the last of these terms being infinitely flexible, and varying with civilisation and habits, we cannot admit that in comparing nations and classes, population is proportionate to production, as J. B. Say[90] affirms, or to income, as is represented by M. de Sismondi. And then every advancing step of culture implies greater foresight, and the moral and preventive check comes to neutralize the repressive one more and more as civilisation is realized in society at large, or in one or other of its sections. Hence it follows that each step of progress tends to a new step in the same direction, vires acquirit eundo; seeing that better circumstances and greater foresight engender one another in indefinite succession. For the same reason, when men, from whatever cause, follow a retrograde course, narrower circumstances and want of foresight become reciprocally cause and effect, [p415] and retrogression and decay would have no limit had society not been indued with that curative force, that vis medicatrix, which Providence has vouchsafed to all organized bodies. Observe, too, that at each step of this retrograde movement, the action of the law of limitation in its destructive form becomes at once more painful and more apparent. At first, it is only deterioration and sinking in the social scale; then it is poverty, famine, disorder, war, death;—painful but infallible teachers.
I should like to pause here to show how well this theory explains facts, and how well facts in their turn justify the theory. When, in the case of a nation or a class, the means of existence have descended to that inferior limit at which they come to be confounded with the means of pure subsistence, as in China, in Ireland, and among the lowest and poorest class of every country, the smallest oscillations of population, or of the supply of food, are tantamount to death. In this respect facts confirm the scientific induction. Famine has not for a long period visited Europe, and we attribute the absence of this scourge to a multitude of causes. The most general of these causes undoubtedly is, that the means of existence, by reason of social progress, have risen far above the means of mere subsistence. When years of scarcity come, we are thus enabled to give up many enjoyments before encroaching on the first necessaries of life. Not so in such countries as China or Ireland, where men have nothing in the world but a little rice or a few potatoes. When the rice or potato crops fail, they have absolutely no means of purchasing other food.
A third consequence of human perfectibility we must notice here, because it tends to modify the doctrine of Malthus in its most afflicting phase. The formula which we have attributed to that economist is, that “Population tends to keep on a level with the means of subsistence.” We should say that he has gone much farther, and that his true formula, that from which he has drawn his most distressing conclusions, is this: “Population tends to go beyond the means of subsistence.” Had Malthus by this simply meant to say that in the human race the power of propagating life is superior to the power of sustaining life, there could have been no controversy. But this is not what he means. He affirms that, taking into account absolute fecundity on the one hand, and, on the other, limitation, as manifested in the two forms, repressive and preventive, the result is still the tendency of population to go beyond the means of subsistence.[91] This holds true of every species [p416] of living creatures, except the human race. Man is an intelligent being, and can make an unlimited use of the preventive check. He is perfectible, seeks after improvement, and shuns deterioration. Progress is his normal state, and progress presupposes a more and more enlightened exercise of the preventive check; and then the means of existence increase more rapidly than population. This effect not only flows from the principle of perfectibility, but is confirmed by fact, since on all sides the range of satisfactions is extended. Were it true, as Malthus asserts, that along with every addition to the means of subsistence there is a still greater addition to the population, the misery of our race would be fatally—inevitably—progressive; society would begin with civilisation and end with barbarism. The contrary is the fact; and we must conclude that the law of limitation has had sufficient force to restrain the multiplication of men, and keep it below the multiplication of products.
It may be seen from what has been said how vast and how difficult the question of population is. We may regret, no doubt, that a precise formula has not been given to it, and we regret still more that we find ourselves unable to propose one. But we may see how repugnant the narrow limits of a dogmatic axiom are to such a subject. It is a vain endeavour to try to express, in the form of an inflexible equation, the relations of data so essentially variable. Allow me to recapitulate these data.
(1.) The law of increase or multiplication.—The absolute, virtual, physiological power which resides in the human race to propagate life, apart from the consideration of the difficulty of sustaining life. This first datum, the only one susceptible of anything like precision, is the only one in which precision is superfluous; for what matters it where the superior limit of multiplication is placed in the hypothesis, if it can never be attained in the actual condition of man, which is to sustain life with the sweat of his brow.
(2.) There is a limit, then, to the law of multiplication. What is that limit? The means of existence, it is replied. But what are the means of existence? The aggregate of satisfactions or enjoyments, which cannot be exactly defined. They vary with times, places, races, ranks, manners, opinions, habits, and consequently the limit we are in search of is shifted or displaced.
(3.) Last of all, it may be asked, in what consists the force which [p417] restrains population within this limit, which is itself movable? As far as man is concerned, it is twofold: a force which represses, and a force which prevents. Now, the action of the first, incapable as it is in itself of being accurately measured, is, moreover, entirely subordinated to the action of the second, which depends on the degree of civilisation, on the power and prevalence of habits, on the tendency of political and religious institutions, on the organization of property, of labour, of family relations, etc. Between the law of multiplication and the law of limitation, then, it is impossible to establish an equation from which could be deduced the actual population. In algebra a and b represent determinate quantities which are numbered and measured, and of which we can fix the proportions; but means of existence, moral government of the will, inevitable action of mortality, these are the three data of the problem of population, data which are flexible in themselves, and which partake somewhat, moreover, of the astonishing flexibility of the subject to which they have reference—man—that being whom Montaigne describes as so fluctuating and so variable. It is not surprising, then, that in desiring to give to this equation a precision of which it is incapable, economists have rather divided men’s minds than brought them into unison, and this because there is not one of the terms of their formulas which is not open to a multitude of objections, both in reasoning and in fact.
We shall now proceed to say something on the practical application of the doctrine of population, for application not only elucidates doctrine, but is the true fruit of the tree of science.
Labour, as we have said, is the only subject of exchange. In order to obtain utility (unless the utility which nature gives us gratuitously), we must be at the pains to produce it, or remunerate another who takes the pains for us. Man creates, and can create, nothing; he arranges, disposes, or transports things for a useful purpose; he cannot do this without exertion, and the result of this exertion becomes his property. If he gives away his property, he has right to recompense, in the shape of a service which is judged equivalent after free discussion. Such is the principle of value, of remuneration, of exchange—a principle which is not the less true because it is simple. Into what we denominate products, there enter divers degrees of natural utility, and divers degrees of artificial utility; the latter, which alone implies labour, is alone the subject of human bargains and transactions; and without questioning in the least the celebrated and suggestive formula of J. B. Say, that “products are exchanged for products,” I esteem it more [p418] rigorously scientific to say that labour is exchanged for labour, or, better still, that services are exchanged for services.