The Malthusian doctrine, as at present held, may be thus stated in its strongest and least objectionable form:
That population, constantly tending to increase, must, when unrestrained, ultimately press against the limits of subsistence, not as against a fixed, but as against an elastic barrier, which makes the procurement of subsistence progressively more and more difficult. And thus, wherever reproduction has had time to assert its power, and is unchecked by prudence, there must exist that degree of want which will keep population within the bounds of subsistence.
Although in reality not more repugnant to the sense of harmonious adaptation by creative beneficence and wisdom than the complacent no-theory which throws the responsibility for poverty and its concomitants upon the inscrutable decrees of Providence, without attempting to trace them, this theory, in avowedly making vice and suffering the necessary results of a natural instinct with which are linked the purest and sweetest affections, comes rudely in collision with ideas deeply rooted in the human mind, and it was, as soon as formally promulgated, fought with a bitterness in which zeal was often more manifest than logic. But it has triumphantly withstood the ordeal, and in spite of the refutations of the Godwins, the denunciations of the Cobbetts, and all the shafts that argument, sarcasm, ridicule, and sentiment could direct against it, today it stands in the world of thought as an accepted truth, which compels the recognition even of those who would fain disbelieve it.
The causes of its triumph, the sources of its strength, are not obscure. Seemingly backed by an indisputable arithmetical truth—that a continuously increasing population must eventually exceed the capacity of the earth to furnish food or even standing room, the Malthusian theory is supported by analogies in the animal and vegetable kingdoms, where life everywhere beats wastefully against the barriers that hold its different species in check—analogies to which the course of modern thought, in leveling distinctions between different forms of life, has given a greater and greater weight; and it is apparently corroborated by many obvious facts, such as the prevalence of poverty, vice, and misery amid dense populations; the general effect of material progress in increasing population without relieving pauperism; the rapid growth of numbers in newly settled countries and the evident retardation of increase in more densely settled countries by the mortality among the class condemned to want.
The Malthusian theory furnishes a general principle which accounts for these and similar facts, and accounts for them in a way which harmonizes with the doctrine that wages are drawn from capital, and with all the principles that are deduced from it. According to the current doctrine of wages, wages fall as increase in the number of laborers necessitates a more minute division of capital; according to the Malthusian theory, poverty appears as increase in population necessitates the more minute division of subsistence. It requires but the identification of capital with subsistence, and number of laborers with population, an identification made in the current treatises on political economy, where the terms are often converted, to make the two propositions as identical formally as they are substantially.15 And thus it is, as stated by Buckle in the passage previously quoted, that the theory of population advanced by Malthus has appeared to prove decisively the theory of wages advanced by Smith.
Ricardo, who a few years subsequent to the publication of the Essay on Population corrected the mistake into which Smith had fallen as to the nature and cause of rent, furnished the Malthusian theory an additional support by calling attention to the fact that rent would increase as the necessities of increasing population forced cultivation to less and less productive lands, or to less and less productive points on the same lands, thus explaining the rise of rent. In this way was formed a triple combination, by which the Malthusian theory has been buttressed on both sides—the previously received doctrine of wages and the subsequently received doctrine of rent exhibiting in this view but special examples of the operation of the general principle to which the name of Malthus has been attached—the fall in wages and the rise in rents which come with increasing population being but modes in which the pressure of population upon subsistence shows itself.
Thus taking its place in the very framework of political economy (for the science as currently accepted has undergone no material change or improvement since the time of Ricardo, though in some minor points it has been cleared and illustrated), the Malthusian theory, though repugnant to sentiments before alluded to, is not repugnant to other ideas, which, in older countries at least, generally prevail among the working classes; but, on the contrary, like the theory of wages by which it is supported and in turn supports, it harmonizes with them. To the mechanic or operative the cause of low wages and of the inability to get employment is obviously the competition caused by the pressure of numbers, and in the squalid abodes of poverty what seems
