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96
The Wealth of Nations

produce, and with the value of its produce. But in order to render that produce both as great and as valuable as possible, it is necessary to procure to it as extensive a market as possible, and consequently to establish the freest, the easiest, and the least expensive communication between all the different parts of the country; which can be done only by means of the best roads and the best navigable canals. But the revenue of the sovereign does not, in any part of Europe, arise chiefly from a land tax or land rent. In all the great kingdoms of Europe, perhaps the greater part of it may ultimately depend upon the produce of the land: But that dependence is neither so immediate, nor so evident. In Europe, therefore, the sovereign does not feel himself so directly called upon to promote the increase, both in quantity and value, of the produce of the land, or, by maintaining good roads and canals, to provide the most extensive market for that produce. Though it should be true, therefore, what I apprehend is not a little doubtful, that in some parts of Asia this department of the public police is very properly managed by the executive power, there is not the least probability that, during the present state of things, it could be tolerably managed by that power in any part of Europe.

Even those public works which are of such a nature that they cannot afford any revenue for maintaining themselves, but of which the convenience is nearly confined to some particular place or district, are always better maintained by a local or provincial revenue, under the management of a local and provincial administration, than by the general revenue of the State, of which the executive power must always have the management. Were the streets of London to be lighted and paved at the expense of the