accounts. First, because, tho' the cause of the establishment of these laws had been a regard for the public good, as much as the public good is their natural tendency, they wou'd still have been artificial, as being purposely contriv'd and directed to a certain end. Secondly, because, if men had been endow'd with such a strong regard for public good, they wou'd never have restrain'd themselves by these rules; so that the laws of justice arise from natural principles in a manner still more oblique and artificial. 'Tis self-love which is their real origin; and as the self-love of one person is naturally contrary to that of another, these several interested passions are oblig'd to adjust themselves after such a manner as to concur in some system of conduct and behaviour. This system, therefore, comprehending the interest of each individual, is of course advantageous to the public; tho' it be not intended for that purpose by the inventors.
II. In the second place we may observe, that all kinds of vice and virtue run insensibly into each other, and may approach by such imperceptible degrees as will make it very difficult, if not absolutely impossible, to determine when the one ends, and the other begins; and from this observation we may derive a new argument for the foregoing principle. For whatever may be the case, with regard to all kinds of vice and virtue, 'tis certain, that rights, and obligations, and property, admit of no such insensible gradation, but that a man either has a full and perfect property, or none at all; and is either entirely oblig'd to perform any action, or lies under no manner of obligation. However civil laws may talk of a perfect dominion, and of an imperfect, 'tis easy to observe, that this arises from a fiction, which has no foundation in reason, and can never enter into our notions of natural justice and equity. A man that hires a horse, tho' but for a day, has as full a right to make use of it for that time, as he whom we call its proprietor has to make use of it any other day; and 'tis evident, that however the use may be
