There are two sorts of labour, productive and unproductive
Many kinds of labour besides menial service are unproductive.
The proportion of the produce employed in maintaining productive hands determines the next year’s produce.
Part of the produce replaces capital, part constitutes profit and rent.
That which replaces capital employs none but productive hands,
while unproductive hands and those who do not labour are supported by revenue.
So the proportion of productive hands depends on the proportion between profit with rent and the part of produce which replaces capital.
Rent anciently formed a larger proportion of the produce of agriculture than now.
Profits were anciently a larger share of the produce of manufactures,
so the proportion of produce required for replacing capital is greater than it was.
The proportion between the funds determines whether the inhabitants of the country shall be industrious or idle.
Increase or diminution of the capital of a country consequently increases or diminishes its annual produce.
Capitals are increased by parsimony or saving.
What is saved is consumed by productive hands.
The frugal man establishes a perpetual fund for the employment of productive hands.
The prodigal perverts such funds to other uses.
Whether he spends on home or foreign commodities makes no difference.
If he had not spent there would have been just as much money in the country and the goods produced by productive hands as well
Besides, when the annual produce diminishes, money will go abroad,
and on the other hand money will come in when the annual produce increases.
So even if the real wealth of a country consisted of its money, the prodigal would be a public enemy.
Injudicious employment of capital has the same effect as prodigality.
Frugality and prudence predominate.
Prodigality is more intermittent than the desire to better our condition.
Imprudent undertakings are small in number compared to prudent ones.
Public prodigality and imprudence are more to be feared than private,
but are counteracted by private frugality and prudence.
To increase the produce of a nation an increase of capital is necessary. If, therefore, the produce has increased, we may be sure the capital has increased. This has been the case of almost all nations in peaceable times.
England for example from 1660 to 1776,
or from 1558 to 1660,
though there was much public and private profusion, and many other disorders and misfortunes occurred.
Private frugality and prudence have silently counteracted these circumstances.
A part from increase or diminution of capital different kinds of expense may be distinguished.
An individual who spends on durable commodities will be richer than one who spends on perishable ones.
The same thing is true of a nation.
The former expense is easier to bring to an end,
and gives maintenance to more people.
It does not follow that it betokens a more generous spirit.