Some readers may, however, think that in these observations which I offer, to excuse the presumption of my own attempt, I have omitted the mention of later writers, to whom some part of the remarks is not justly applicable. But, perhaps, further consideration will acquit me in the judgment of such readers. Writers on particular questions of public law are not within the scope of my observations. They have furnished the most valuable materials; but I speak only of a system. To the large work of Wolffius, the observations which I have made on Puffendorff as a book for general use, will surely apply with tenfold force. His abridger, Vattel, deserves, indeed, considerable praise. He is a very ingenious, clear, elegant, and useful writer. But he only considers one part of this extensive subject, namely, the law of nations strictly so called; and I cannot help thinking, that, even in this department of the science, he has adopted some doubtful and dangerous principles, not to mention his constant deficiency in that fulness of example and illustration, which so much embellishes and strengthens reason. It is hardly necessary to take any notice of the text-book of Heineccius, the best writer of elementary books with whom I am acquainted on any subject. Burlamaqui is an author of superior merit; but he confines himself too much to the general principles of morality and politics, to require much observation from me in this place. The same reason will excuse me for passing over in silence the works of many philosophers and moralists, to whom, in the course of my proposed lectures, I shall owe and confess the greatest obligations; and it might perhaps deliver me from the necessity of speaking of the work of Dr. Paley, if I were not desirous of this public opportunity of professing my gratitude for the instruction and pleasure which I have received from that excellent writer, who possesses, in so eminent a degree, those invaluable qualities of a moralist, good sense, caution, sobriety, and perpetual reference to convenience and practice; and who certainly is thought less original than he really is, merely because his taste and modesty have led him to disdain the ostentation of novelty, and because he generally employs more art to blend his own arguments with the body of received opinions, so as that they are scarce to be distinguished, than other men, in the pursuit of a transient popularity, have exerted to disguise the most miserable common-places in the shape of paradox.
No writer since the time of Grotius, of Puffendorff, and of Wolf, has combined an investigation of the principles of natural and public law, with a full application of these principles to particular cases; and in these circumstances, I trust, it will not be deemed extravagant presumption in me to hope that I shall be able to exhibit a view of this science, which shall, at least, be more intelligible and attractive to students, than the learned treatises of these celebrated men. I shall now proceed to state the general plan and subjects of the lectures in which I am to make this attempt.
I. The being whose actions the law of nature professes to regulate, is man. It is on the knowledge of his nature that the science of his duty must be founded.[ [15] ] It is impossible to approach the threshold of moral philosophy, without a previous examination of the faculties and habits of the human mind. Let no reader be repelled from this examination, by the odious and terrible name of metaphysics; for it is, in truth, nothing more than the employment of good sense, in observing our own thoughts, feelings, and actions; and when the facts which are thus observed, are expressed as they ought to be, in plain language, it is, perhaps, above all other sciences, most on a level with the capacity and information of the generality of thinking men. When it is thus expressed, it requires no previous qualification, but a sound judgment, perfectly to comprehend it; and those who wrap it up in a technical and mysterious jargon, always give us strong reason to suspect that they are not philosophers but impostors. Whoever thoroughly understands such a science, must be able to teach it plainly to all men of common sense. The proposed course will therefore open with a very short, and, I hope, a very simple and intelligible account of the powers and operations of the human mind. By this plain statement of facts, it will not be difficult to decide many celebrated, though frivolous, and merely verbal controversies, which have long amused the leisure of the schools, and which owe both their fame and their existence to the ambiguous obscurity of scholastic language. It will, for example, only require an appeal to every man's experience, to prove that we often act purely from a regard to the happiness of others, and are therefore social beings; and it is not necessary to be a consummate judge of the deceptions of language, to despise the sophistical trifler, who tells us, that, because we experience a gratification in our benevolent actions, we are therefore exclusively and uniformly selfish. A correct examination of facts will lead us to discover that quality which is common to all virtuous actions, and which distinguishes them from those which are vicious and criminal. But we shall see that it is necessary for man to be governed not by his own transient and hasty opinion upon the tendency of every particular action, but by those fixed and unalterable rules, which are the joint result of the impartial judgment, the natural feelings, and the embodied experience of mankind. The authority of these rules is, indeed, founded only on their tendency to promote private and public welfare; but the morality of actions will appear solely to consist in their correspondence with the rule. By the help of this obvious distinction we shall vindicate a just theory, which, far from being modern, is, in fact, as ancient as philosophy, both from plausible objections, and from the odious imputation of supporting those absurd and monstrous systems which have been built upon it. Beneficial tendency is the foundation of rules, and the criterion by which habits and sentiments are to be tried. But it is neither the immediate standard, nor can it ever be the principal motive of action. An action, to be completely virtuous, must accord with moral rules, and must flow from our natural feelings and affections, moderated, matured, and improved into steady habits of right conduct.[ [16] ] Without, however, dwelling longer on subjects which cannot be clearly stated, unless they are fully unfolded, I content myself with observing, that it shall be my object, in this preliminary, but most important part of the course, to lay the foundations of morality so deeply in human nature, as may satisfy the coldest inquirer; and, at the same time, to vindicate the paramount authority of the rules of our duty, at all times, and in all places, over all opinions of interest and speculations of benefit, so extensively, so universally, and so inviolably, as may well justify the grandest and the most apparently extravagant effusions of moral enthusiasm. If, notwithstanding all my endeavours to deliver these doctrines with the utmost simplicity, any of my auditors should still reproach me for introducing such abstruse matters, I must shelter myself behind the authority of the wisest of men. "If they (the ancient moralists), before they had come to the popular and received notions of virtue and vice, had staid a little longer upon the inquiry concerning the roots of good and evil, they had given, in my opinion, a great light to that which followed; and specially if they had consulted with nature, they had made their doctrines less prolix, and more profound."—Bacon. Dign. and Adv. of Learn. book ii. What Lord Bacon desired for the mere gratification of scientific curiosity, the welfare of mankind now imperiously demands. Shallow systems of metaphysics have given birth to a brood of abominable and pestilential paradoxes, which nothing but a more profound philosophy can destroy. However we may, perhaps, lament the necessity of discussions which may shake the habitual reverence of some men for those rules which it is the chief interest of all men to practise, we have now no choice left. We must either dispute, or abandon the ground. Undistinguishing and unmerited invectives against philosophy, will only harden sophists and their disciples in the insolent conceit, that they are in possession of an undisputed superiority of reason; and that their antagonists have no arms to employ against them, but those of popular declamation. Let us not for a moment even appear to suppose, that philosophical truth and human happiness are so irreconcilably at variance. I cannot express my opinion on this subject so well as in the words of a most valuable, though generally neglected writer: "The science of abstruse learning, when completely attained, is like Achilles's spear, that healed the wounds it had made before; so this knowledge serves to repair the damage itself had occasioned, and this perhaps is all it is good for; it casts no additional light upon the paths of life, but disperses the clouds with which it had overspread them before; it advances not the traveller one step in his journey, but conducts him back again to the spot from whence he wandered. Thus the land of Philosophy consists partly of an open champaign country, passable by every common understanding, and partly of a range of woods, traversable only by the speculative, and where they too frequently delight to amuse themselves. Since then we shall be obliged to make incursions into this latter tract, and shall probably find it a region of obscurity, danger, and difficulty, it behoves us to use our utmost endeavours for enlightening and smoothing the way before us."[ [17] ] We shall, however, remain in the forest only long enough to visit the fountains of those streams which flow from it, and which water and fertilise the cultivated region of Morals, to become acquainted with the modes of warfare practised by its savage inhabitants, and to learn the means of guarding our fair and fruitful land against their desolating incursions. I shall hasten from speculations, to which I am naturally, perhaps, but too prone, and proceed to the more profitable consideration of our practical duty.
II. The first and most simple part of ethics is that which regards the duties of private men towards each other, when they are considered apart from the sanction of positive laws. I say, apart from that sanction, not antecedent to it; for though we separate private from political duties for the sake of greater clearness and order in reasoning, yet we are not to be so deluded by this mere arrangement of convenience as to suppose that human society ever has subsisted, or ever could subsist, without being protected by government and bound together by laws. All these relative duties of private life have been so copiously and beautifully treated by the moralists of antiquity, that few men will now choose to follow them who are not actuated by the wild ambition of equalling Aristotle in precision, or rivalling Cicero in eloquence. They have been also admirably treated by modern moralists, among whom it would be gross injustice not to number many of the preachers of the Christian religion, whose peculiar character is that spirit of universal charity, which is the living principle of all our social duties. For it was long ago said, with great truth, by Lord Bacon, "that there never was any philosophy, religion, or other discipline, which did so plainly and highly exalt that good which is communicative, and depress the good which is private and particular, as the Christian faith."[ [18] ] The appropriate praise of this religion is not so much, that it has taught new duties, as that it breathes a milder and more benevolent spirit over the whole extent of morals.
On a subject which has been so exhausted, I should naturally have contented myself with the most slight and general survey, if some fundamental principles had not of late been brought into question, which, in all former times, have been deemed too evident to require the support of argument, and almost too sacred to admit the liberty of discussion. I shall here endeavour to strengthen some parts of the fortifications of morality which have hitherto been neglected, because no man had ever been hardy enough to attack them. Almost all the relative duties of human life will be found more immediately, or more remotely, to arise out of the two great institutions of property and marriage. They constitute, preserve, and improve society. Upon their gradual improvement depends the progressive civilization of mankind; on them rests the whole order of civil life. We are told by Horace, that the first efforts of lawgivers to civilise men consisted in strengthening and regulating these institutions, and fencing them round with rigorous penal laws.
Oppida cœperunt munire et ponere leges
Neu quis fur esset, neu quis latro, neu quis adulter.
1 Serm. iii. 105.
A celebrated ancient orator, of whose poems we have but a few fragments remaining, has well described the progressive order in which human society is gradually led to its highest improvements under the guardianship of those laws which secure property and regulate marriage.
Et leges sanctas docuit, et chara jugavit
Corpora conjugiis; et magnas condidit urbes.
Frag. C. Licin. Calvi.
These two great institutions convert the selfish as well as the social passions of our nature into the firmest bands of a peaceable and orderly intercourse; they change the sources of discord into principles of quiet; they discipline the most ungovernable, they refine the grossest, and they exalt the most sordid propensities; so that they become the perpetual fountain of all that strengthens, and preserves, and adorns society; they sustain the individual, and they perpetuate the race. Around these institutions all our social duties will be found at various distances to range themselves; some more near, obviously essential to the good order of human life, others more remote, and of which the necessity is not at first view so apparent; and some so distant, that their importance has been sometimes doubted, though upon more mature consideration they will be found to be outposts and advanced guards of these fundamental principles: that man should securely enjoy the fruits of his labour, and that the society of the sexes should be so wisely ordered as to make it a school of the kind affections, and a fit nursery for the commonwealth.