Secondly. The assertion that wealth is not only intrinsic, but dependent, in order to become effectual, on a given degree of vital power in its possessor, is opposed to another popular view of wealth;--namely, that though it may always be constituted by caprice, it is, when so constituted, a substantial thing, of which given quantities may be counted as existing here, or there, and exchangeable at rated prices. In this view there are three errors. The first and chief is the overlooking the fact that all exchangeableness of commodity, or effective demand for it, depends on the sum of capacity for its use existing, here or elsewhere. The book we cannot read, or picture we take no delight in, may indeed be called part of our wealth, in so far as we have power of exchanging either for something we like better. But our power of effecting such exchange, and yet more, of effecting it to advantage, depends absolutely on the number of accessible persons who can understand the book, or enjoy the painting, and who will dispute the possession of them. Thus the actual worth of either, even to us, depends no less on their essential goodness than on the capacity consisting somewhere for the perception of it; and it is vain in any completed system of production to think of obtaining one without the other. So that, though the great political economist knows that co-existence of capacity for use with temporary possession cannot be always secured, the final fact, on which he bases all action and administration, is that, in the whole nation, or group of nations, he has to deal with, for every grain of intrinsic value produced he must with exactest chemistry produce its twin grain of governing capacity, or in the degrees of his failure he has no wealth. Nature's challenge to us is in earnest, as the Assyrian's mock, "I will give you two thousand horses, if thou be able on thy part to set riders upon them." Bavieca's paces are brave, if the Cid backs him; but woe to us, if we take the dust of capacity, wearing the armour of it, for capacity itself, for so all procession, however goodly in the show of it, is to the tomb.