The First Fundamental Proposition Respecting Capital: Industry Is Limited by Capital

The first of these propositions is, that industry is limited by capital. This is so obvious as to be taken for granted in many common forms of speech; but to see a truth occasionally is one thing, to recognise it habitually, and admit no propositions inconsistent with it, is another. The axiom was until lately almost universally disregarded by legislators and political writers; and doctrines irreconcilable with it are still very commonly professed and inculcated. . . .

Yet, in disregard of a fact so evident, it long continued to be believed that laws and governments, without creating capital, could create industry. Not by making the people more laborious, or increasing the efficiency of their labour; these are objects to which the government can, in some degree, indirectly contribute. But without any increase in the skill or energy of the labourers, and without causing any persons to labour who had previously been maintained in idleness, it was still thought that the government, without providing additional funds, could create additional employment. A government would, by prohibitory laws, put a stop to the importation of some commodity; and when by this it had caused the commodity to be produced at home, it would plume itself upon having enriched the country with a new branch of industry, would parade in statistical tables the amount of produce yielded and labour employed in the production, and take credit for the whole of this as a gain to the country, obtained through the prohibitory law. Although this sort of political arithmetic has fallen a little into discredit in England, it still flourishes in the nations of Continental Europe. Had legislators been aware that industry is limited by capital, they would have seen that, the aggregate capital of the country not having been increased, any portion of it which they by their laws had caused to be embarked in the newly-acquired branch of industry must have been withdrawn or withheld from some other; in which it gave, or would have given, employment to probably about the same quantity of labour which it employs in its new occupation.

—John Stuart Mill, Principles of Political Economy with Some of Their Applications to Social Philosophy, ed. W. J. Ashley (1909; repr., London: Longmans, Green and Co., 1936), 53-54.