An Inquiry into the Nature and Causes of the Wealth of Nations

by Adam Smith

But whether the administration of justice be so contrived as to defray its own expense, or whether the judges be maintained by fixed salaries paid to them from some other fund, it does not seen necessary that the person or persons entrusted with the executive power should be charged with the management of that fund, or with the payment of those salaries. That fund might arise from the rent of landed estates, the management of each estate being entrusted to the particular court which was to be maintained by it. That fund might arise even from the interest of a sum of money, the lending out of which might, in the same manner, be entrusted to the court which was to be maintained by it. A part, though indeed but a small part of the salary of the judges of the court of session in Scotland, arises from the interest of a sum of money. The necessary instability of such a fund seems, however, to render it an improper one for the maintenance of an institution which ought to last for ever.

The separation of the judicial from the executive power, seems originally to have arisen from the increasing business of the society, in consequence of its increasing improvement. The administration of justice became so laborious and so complicated a duty, as to require the undivided attention of the person to whom it was entrusted. The person entrusted with the executive power, not having leisure to attend to the decision of private causes himself, a deputy was appointed to decide them in his stead. In the progress of the Roman greatness, the consul was too much occupied with the political affairs of the state, to attend to the administration of justice. A praetor, therefore, was appointed to administer it in his stead. In the progress of the European monarchies, which were founded upon the ruins of the Roman empire, the sovereigns and the great lords came universally to consider the administration of justice as an office both too laborious and too ignoble for them to execute in their own persons. They universally, therefore, discharged themselves of it, by appointing a deputy, bailiff or judge.

When the judicial is united to the executive power, it is scarce possible that justice should not frequently be sacrificed to what is vulgarly called politics. The persons entrusted with the great interests of the state may even without any corrupt views, sometimes imagine it necessary to sacrifice to those interests the rights of a private man. But upon the impartial administration of justice depends the liberty of every individual, the sense which he has of his own security. In order to make every individual feel himself perfectly secure in the possession of every right which belongs to him, it is not only necessary that the judicial should be separated from the executive power, but that it should be rendered as much as possible independent of that power. The judge should not be liable to be removed from his office according to the caprice of that power. The regular payment of his salary should not depend upon the good will, or even upon the good economy of that power.

PART III. Of the Expense of public Works and public Institutions.

The third and last duty of the sovereign or commonwealth, is that of erecting and maintaining those public institutions and those public works, which though they may be in the highest degree advantageous to a great society, are, however, of such a nature, that the profit could never repay the expense to any individual, or small number of individuals; and which it, therefore, cannot be expected that any individual, or small number of individuals, should erect or maintain. The performance of this duty requires, too, very different degrees of expense in the different periods of society.

After the public institutions and public works necessary for the defence of the society, and for the administration of justice, both of which have already been mentioned, the other works and institutions of this kind are chiefly for facilitating the commerce of the society, and those for promoting the instruction of the people. The institutions for instruction are of two kinds: those for the education of the youth, and those for the instruction of people of all ages. The consideration of the manner in which the expense of those different sorts of public works and institutions may be most properly defrayed will divide this third part of the present chapter into three different articles.

ARTICLE I.—Of the public Works and Institutions for facilitating the Commerce of the Society.

And, first, of those which are necessary for facilitating Commerce in general.

That the erection and maintenance of the public works which facilitate the commerce of any country, such as good roads, bridges, navigable canals, harbours, etc. must require very different degrees of expense in the different periods of society, is evident without any proof. The expense of making and maintaining the public roads of any country must evidently increase with the annual produce of the land and labour of that country, or with the quantity and weight of the goods which it becomes necessary to fetch and carry upon those roads. The strength of a bridge must be suited to the number and weight of the carriages which are likely to pass over it. The depth and the supply of water for a navigable canal must be proportioned to the number and tonnage of the lighters which are likely to carry goods upon it; the extent of a harbour, to the number of the shipping which are likely to take shelter in it.

It does not seem necessary that the expense of those public works should be defrayed from that public revenue, as it is commonly called, of which the collection and application are in most countries, assigned to the executive power. The greater part of such public works may easily be so managed, as to afford a particular revenue, sufficient for defraying their own expense without bringing any burden upon the general revenue of the society.