It is to be noticed that, in fact, after the arts have so far advanced in a community that mankind can obtain by their exertion more than the amount of the mere necessaries of life sufficient on the average for the subsistence of all, any further production rendered possible to the human race by new discoveries and processes is naturally unproductively consumed, and that consequently a demand for labor for unproductive consumption is essential for the employment of all existing laborers. This, however, can be done, because enough capital has been brought into existence to create the demand for the labor. Yet it is clear that it is not _expenditure_, but capital, by which employment is given to the poor. Suppose that every capitalist came to be of opinion that, not being more meritorious than a well-conducted laborer, he ought not to fare better; and accordingly laid by, from conscientious motives, the surplus of his profits; unproductive expenditure is now reduced to its lowest limit: and it is asked, How is the increased capital to find employment? Who is to buy the goods which it will produce? There are no longer customers even for those which were produced before. The goods, therefore (it is said), will remain unsold; they will perish in the warehouses, until capital is brought down to what it was originally, or rather to as much less as the demand of the customers has lessened. But this is seeing only one half of the matter. In the case supposed, there would no longer be any demand for luxuries on the part of capitalists and land-owners. But, when these classes turn their income into capital, they do not thereby annihilate their power of consumption; they do but transfer it from themselves to the laborers to whom they give employment. Now, there are two possible suppositions in regard to the laborers: either there is, or there is not, an increase of their numbers proportional to the increase of capital. (1.) If there is, the case offers no difficulty. The production of necessaries for the new population takes the place of the production of luxuries for a portion of the old, and supplies exactly the amount of employment which has been lost. (2.) But suppose that there is no increase of population. The whole of what was previously expended in luxuries, by capitalists and landlords, is distributed among the existing laborers, in the form of additional wages. We will assume them to be already sufficiently supplied with necessaries.