The errors which I have been pointing out, and which consist in confounding with wealth and capital things essentially distinct, or which have but a relative existence, are now merely vulgar errors. They are widespread, it is true, and have a deep root, being held, not merely by the less educated classes, but seemingly by a large majority of those who in such advanced countries as England and the United States mold and guide public opinion, make the laws in Parliaments, Congresses and Legislatures, and administer them in the courts. They crop out, moreover, in the disquisitions of many of those flabby writers who have burdened the press and darkened counsel by numerous volumes which are dubbed political economy, and which pass as text-books with the ignorant and as authority with those who do not think for themselves. Nevertheless, they are only vulgar errors, inasmuch as they receive no countenance from the best writers on political economy. By one of those lapses which flaw his great work and strikingly evince the imperfections of the highest talent, Adam Smith counts as capital certain personal qualities, an inclusion which is not consistent with his original definition of capital as stock from which revenue is expected. But this error has been avoided by his most eminent successors, and in the definitions, previously given, of Ricardo, McCulloch, and Mill, it is not involved. Neither in their definitions nor in that of Smith is involved the vulgar error which confounds as real capital things which are only relatively capital, such as evidences of debt, land values, etc. But as to things which are really wealth, their definitions differ from each other, and widely from that of Smith, as to what is and what is not to be considered as capital. The stock of a jeweler would, for instance, be included as capital by the definition of Smith, and the food or clothing in possession of a laborer would be excluded. But the definitions of Ricardo and McCulloch would exclude the stock of the jeweler, as would also that of Mill, if understood as most persons would understand the words I have quoted. But as explained by him, it is neither the nature nor the destination of the things themselves which determines whether they are or are not capital, but the intention of the owner to devote either the things or the value received from their sale to the supply of productive labor with tools, materials, and maintenance. All these definitions, however, agree in including as capital the provisions and clothing of the laborer, which Smith excludes. Let us consider these three definitions, which represent the best teachings of current political economy: