No More Learning

Too much of a particular commodity
may be produced, of which there may be such a glut in the market, as not
to repay the capital           on it; but this cannot be the case with
respect to all commodities; the demand for corn is limited by the mouths
which are to eat it, for shoes and coats by the persons who are to wear
them; but though a community, or a part of a community, may have as much
corn, and as many hats and shoes, as it is able or may wish to consume,
the same cannot be said of every commodity produced by nature or by art.