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It will be inferred from what has been said that the theory which transformed the Roman jurisprudence had no claim to philosophical precision. It involved, in fact, one of those "mixed modes of thought" which are now acknowledged to have characterised all but the highest minds during the infancy of speculation, and which are far from undiscoverable even in the mental efforts of our own day. The Law of Nature confused the Past and the Present. Logically, it implied a state of Nature which had once been regulated by natural law; yet the jurisconsults do not speak clearly or confidently of the existence of such a state, which indeed is little noticed by the ancients except where it finds a poetical expression in the fancy of a golden age. Natural law, for all practical purposes, was something belonging to the present, something entwined with existing institutions, something which could be distinguished from them by a competent observer. The test which separated the ordinances of Nature from the gross ingredients with which they were mingled was a sense of simplicity and harmony; yet it was not on account of their simplicity and harmony that these finer elements were primarily respected, but on the score of their descent from the aboriginal reign of Nature. This confusion has not been successfully explained away by the modern disciples of the jurisconsults, and in truth modern speculations on the Law of Nature betray much more indistinctness of perception and are vitiated by much more hopeless ambiguity of language than the Roman lawyers can be justly charged with. There are some writers on the subject who attempt to evade the fundamental difficulty by contending that the code of Nature exists in the future and is the goal to which all civil laws are moving, but this is to reverse the assumptions on which the old theory rested, or rather perhaps to mix together two inconsistent theories. The tendency to look not to the past but to the future for types of perfection was brought into the world by Christianity. Ancient literature gives few or no hints of a belief that the progress of society is necessarily from worse to better.
But the importance of this theory to mankind has been very much greater than its philosophical deficiencies would lead us to expect. Indeed, it is not easy to say what turn the history of thought, and therefore, of the human race, would have taken, if the belief in a law natural had not become universal in the ancient world.
There are two special dangers to which law and society which is held together by law, appear to be liable in their infancy. One of them is that law may be too rapidly developed. This occurred with the codes of the more progressive Greek communities, which disembarrassed themselves with astonishing facility from cumbrous forms of procedure and needless terms of art, and soon ceased to attach any superstitious value to rigid rules and prescriptions. It was not for the ultimate advantage of mankind that they did so, though the immediate benefit conferred on their citizens may have been considerable. One of the rarest qualities of national character is the capacity for applying and working out the law, as such, at the cost of constant miscarriages of abstract justice, without at the same time losing the hope or the wish that law may be conformed to a higher ideal. The Greek intellect, with all its nobility and elasticity, was quite unable to confine itself within the strait waistcoat of a legal formula; and, if we may judge them by the popular courts of Athens of whose working we possess accurate knowledge, the Greek tribunals exhibited the strongest tendency to confound law and fact. The remains of the Orators and the forensic commonplaces preserved by Aristotle in his Treatise on Rhetoric, show that questions of pure law were constantly argued on every consideration which could possibly influence the mind of the judges. No durable system of jurisprudence could be produced in this way. A community which never hesitated to relax rules of written law whenever they stood in the way of an ideally perfect decision on the facts of particular cases, would only; if it bequeathed any body of judicial principles to posterity bequeath one consisting of the ideas of right and wrong which happened to be prevalent at the time. Such a jurisprudence would contain no framework to which the more advanced conceptions of subsequent ages could be fitted. It would amount at best to a philosophy marked with the imperfections of the civilisation under which it grew up.
Few national societies have had their jurisprudence menaced by this peculiar danger of precocious maturity and untimely disintegration. It is certainly doubtful whether the Romans were ever seriously threatened by it, but at any rate they had adequate protection in their theory of Natural Law. For the Natural Law of the jurisconsults was distinctly conceived by them as a system which ought gradually to absorb civil laws, without superseding them so long as they remained unrepealed. There was no such impression of its sanctity abroad, that an appeal to it would be likely to overpower the mind of a judge who was charged with the superintendence of a particular litigation. The value and serviceableness of the conception arose from its keeping before the mental vision a type of perfect law, and from its inspiring the hope of an indefinite approximation to it, at the same time that it never tempted the practitioner or the citizen to deny the obligation of existing laws which had not yet been adjusted to the theory. It is important too to observe that this model system, unlike many of those which have mocked men's hopes in later days, was not entirely the product of imagination. It was never thought of as founded on quite untested principles. The notion was that it underlay existing law and must be looked for through it. Its functions were in short remedial, not revolutionary or anarchical. And this, unfortunately, is the exact point at which the modern view of a Law of Nature has often ceased to resemble the ancient.
The other liability to which the infancy of society is exposed has prevented or arrested the progress of far the greater part of mankind. The rigidity of primitive law, arising chiefly from its early association and identification with religion, has chained down the mass of the human race to those views of life and conduct which they entertained at the time when their usages were first consolidated into a systematic form. There were one or two races exempted by a marvellous fate from this calamity, and grafts from these stocks have fertilised a few modern societies, but it is still true that, over the larger part of the world, the perfection of law has always been considered as consisting in adherence to the ground plan supposed to have been marked out by the original legislator. If intellect has in such cases been exercised on jurisprudence, it has uniformly prided itself on the subtle perversity of the conclusions it could build on ancient texts, without discoverable departure from their literal tenour. I know no reason why the law of the Romans should be superior to the laws of the Hindoos, unless the theory of Natural Law had given it a type of excellence different from the usual one. In this one exceptional instance, simplicity and symmetry were kept before the eyes of a society whose influence on mankind was destined to be prodigious from other causes, as the characteristics of an ideal and absolutely perfect law. It is impossible to overrate the importance to a nation or profession of having a distinct object to aim at in the pursuit of improvement. The secret of Bentham's immense influence in England during the past thirty years is his success in placing such an object before the country. He gave us a clear rule of reform. English lawyers of the last century were probably too acute to be blinded by the paradoxical commonplace that English law was the perfection of human reason, but they acted as if they believed it for want of any other principle to proceed upon. Bentham made the good of the community take precedence of every other object, and thus gave escape to a current which had long been trying to find its way outwards.
It is not an altogether fanciful comparison if we call the assumptions we have been describing the ancient counterpart of Benthamism. The Roman theory guided men's efforts in the same direction as the theory put into shape by the Englishman; its practical results were not widely different from those which would have been attained by a sect of law-reformers who maintained a steady pursuit of the general good of the community. It would be a mistake, however, to suppose it a conscious anticipation of Bentham's principles. The happiness of mankind is, no doubt, sometimes assigned, both in the popular and in the legal literature of the Romans, as the proper object of remedial legislation, but it is very remarkable how few and faint are the testimonies to this principle compared with the tributes which are constantly offered to the overshadowing claims of the Law of Nature. It was not to anything resembling philanthropy, but to their sense of simplicity and harmony -- of what they significantly termed "elegance" -- that the Roman jurisconsults freely surrendered themselves. The coincidence of their labours with those which a more precise philosophy would have counselled has been part of the good fortune of mankind.
Turning to the modern history of the law of nature, we find it easier to convince ourselves of the vastness of its influence than to pronounce confidently whether that influence has been exerted for good or for evil. The doctrines and institutions which may be attributed to it are the material of some of the most violent controversies debated in our time, as will be seen when it is stated that the theory of Natural Law is the source of almost all the special ideas as to law, politics, and society which France during the last hundred years has been the instrument of diffusing over the western world. The part played by jurists in French history, and the sphere of jural conceptions in French thought, have always been remarkably large. It was not indeed in France, but in Italy, that the juridical science of modern Europe took its rise, but of the schools founded by emissaries of the Italian universities in all parts of the continent, and attempted (though vainly) to be set up in our island, that established in France produced the greatest effect on the fortunes of the country. The lawyers of France immediately formed a strict alliance with the kings of the house of Capet, and it was as much through their assertions of royal prerogative, and through their interpretations of the rules of feudal succession, as by the power of the sword, that the French monarchy at last grew together out of the agglomeration of provinces and dependencies. The enormous advantage which their understanding with the lawyers conferred on the French kings in the prosecution of their struggle with the great feudatories, the aristocracy, and the church, can only be appreciated if we take into account the ideas which prevailed in Europe far down into the middle ages. There was, in the first place, a great enthusiasm for generalisation and a curious admiration for all general propositions, and consequently, in the field of law, an involuntary reverence for every general formula which seemed to embrace and sum up a number of the insulated rules which were practised as usages in various localities. Such general formulas it was, of course, not difficult for practitioners familiar with the Corpus Juris or the Glosses to supply in almost any quantity. There was, however, another cause which added yet more considerably to the lawyers' power. At the period of which we are speaking, there was universal vagueness of ideas as to the degree and nature of the authority residing in written texts of law For the most part, the peremptory preface, Ita scriptum est, seems to have been sufficient to silence all objections. Where a mind of our own day would jealously scrutinise the formula which had been quoted, would inquire its source, and would (if necessary) deny that the body of law to which it belonged had any authority to supersede local customs, the elder jurist w ould not probably have ventured to do more than question the applicability of the rule, or at best cite some counter proposition from the Pandects or the Canon Law. It is extremely necessary to bear in mind the uncertainty of men's notions on this most important side of juridical controversies, not only because it helps to explain the weight which the lawyers threw into the monarchical scale, but on account of the light which it sheds on several curious historical problems. The motives of the author of the Forged Decretals and his extraordinary success are rendered more intelligible by it. And, to take a phenomenon of smaller interest, it assists us, though only partially to understand the plagiarisms of Bracton. That an English writer of the time of Henry III should have been able to put off on his countrymen as a compendium of pure English law a treatise of which the entire form and a third of the contents were directly borrowed from the Corpus Juris, and that he should have ventured on this experiment in a country where the systematic study of the Roman law was formally proscribed, will always be among the most hopeless enigmas in the history of jurisprudence; but still it is something to lessen our surprise when we comprehend the state of opinion at the period as to the obligatory force of written texts, apart from all consideration of the Source whence they were derived.
When the kings of France had brought their long struggle for supremacy to a successful close, an epoch which may be placed roughly at the accession of the branch of Valois-Angouleme to the throne, the situation of the French jurists was peculiar and continued to be so down to the outbreak of the revolution. On the one hand, they formed the best instructed and nearly the most powerful class in the nation. They had made good their footing as a privileged order by the side of the feudal aristocracy, and they had assured their influence by an organisation which distributed their profession over France in great chartered corporations possessing large defined powers and still larger indefinite claims. In all the qualities of the advocate, the judge, and the legislator, they far excelled their compeers throughout Europe. Their juridical tact, their ease of expression, their fine sense of analogy and harmony, and (if they may be judged by the highest names among them) their passionate devotion to their conceptions of justice, were as remarkable as the singular variety of talent which they included, a variety covering the whole ground between the opposite poles of Cujas and Montesquieu, of D'Aguesseau and Dumoulin. But, on the other hand, the system of laws which they had to administer stood in striking contrast with the habits of mind which they had cultivated. The France which had been in great part constituted by their efforts was smitten with the curse of an anomalous and dissonant jurisprudence beyond every other country in Europe. One great division ran through the country and separated it into Pays du Droit Ecrit and Pays du Droit Coutumier; the first acknowledging the written Roman law as the basis of their jurisprudence, the last admitting it only so far as it supplied general forms of expression, and courses of juridical reasoning which were reconcileable with the local usages. The sections thus formed were again variously subdivided. In the Pays du Droit Coutumier province differed from province, county from county, municipality from municipality, in the nature of its customs. In the Pays du Droit Ecrit the stratum of feudal rules which overlay the Roman law was of the most miscellaneous composition. No such confusion as this ever existed in England. In Germany it did exist, but was too much in harmony with the deep political and religious divisions of the country to be lamented or even felt. It was the special peculiarity of France that an extraordinary diversity of laws continued without sensible alteration while the central authority of the monarchy was constantly strengthening itself, while rapid approaches were being made to complete administrative unity, and while a fervid national spirit had been developed among the people. The contrast was one which fructified in many serious results, and among them we must rank the effect which it produced on the minds of the French lawyer. Their speculative opinions and their intellectual bias were in the strongest opposition to their interests and professional habits. With the keenest sense and the fullest recognition of those perfections of jurisprudence which consist in simplicity and uniformity, they believed, or seemed to believe, that the vices which actually infested French law were ineradicable: and in practice they often resisted the reformation of abuses with an obstinacy which was not shown by many among their less enlightened countrymen. But there was a way to reconcile these contradictions. They became passionate enthusiasts for Natural Law. The Law of Nature overleapt all provincial and municipal boundaries; it disregarded all distinctions between noble and burgess, between burgess and peasant; it gave the most exalted place to lucidity, simplicity and system; but it committed its devotees to no specific improvement, and did not directly threaten any venerable or lucrative technicality. Natural law may be said to have become the common law of France, or, at all events, the admission of its dignity and claims was the one tenet which all French practitioners alike subscribed to. The language of the prae-revolutionary jurists in its eulogy is singularly unqualified, and it is remarkable that the writers on the Customs, who often made it their duty to speak disparagingly of the pure Roman law, speak even more fervidly of Nature and her rules than the civilians who professed an exclusive respect for the Digest and the Code. Dumoulin, the highest of all authorities on old French Customary Law, has some extravagant passages on the Law of Nature; and his panegyrics have a peculiar rhetorical turn which indicated a considerable departure from the caution of the Roman jurisconsults. The hypothesis of a Natural Law had become not so much a theory guiding practice as an article of speculative faith, and accordingly we shall find that, in the transformation which it more recently underwent, its weakest parts rose to the level of its strongest in the esteem of its supporters.
The eighteenth century was half over when the most critical period in the history of Natural Law was reached. Had the discussion of the theory and of its consequences continued to be exclusively the employment of the legal profession, there would possibly have been an abatement of the respect which it commanded; for by this time the Esprit des Lois had appeared. Bearing in some exaggerations the marks of the excessive violence with which its author's mind had recoiled from assumptions usually suffered to pass without scrutiny, vet showing in some ambiguities the traces of a desire to compromise with existing prejudice, the book of Montesquieu, with all its defects, still proceeded on that Historical Method before which the Law of Nature has never maintained its footing for an instant. Its influence on thought ought to have been as great as its general popularity; but, in fact, it was never allowed time to put it forth, for the counter-hypothesis which it seemed destined to destroy passed suddenly from the forum to the street, and became the key-note of controversies far more exciting than are ever agitated in the courts or the schools. The person who launched it on its new career was that remarkable man who, without learning, with few virtues, and with no strength of character, has nevertheless stamped himself ineffaceably on history by the force of a vivid imagination, and by the help of a genuine and burning love for his fellow-men, for which much will always have to be forgiven him. We have never seen in our own generation -- indeed the world has not seen more than once or twice in all the course of history -- a literature which has exercised such prodigious influence over the minds of men, over every cast and shade of intellect, as that which emanated from Rousseau between 1749 and 1762. It was the first attempt to re-erect the edifice of human belief after the purely iconoclastic efforts commenced by Bayle, and in part by our own Locke, and consummated by Voltaire; and besides the superiority which every constructive effort will always enjoy over one that is merely destructive, it possessed the immense advantage of appearing amid an all but universal scepticism as to the soundness of all foregone knowledge in matters speculative. Now, in all the speculations of Rousseau, the central figure, whether arrayed in an English dress as the signatory of a social compact, or simply stripped naked of all historical qualities, is uniformly Man, in a supposed state of nature. Every law or institution which would misbeseem this imaginary being under these ideal circumstances is to be condemned as having lapsed from an original perfection; every transformation of society which would give it a closer resemblance to the world over which the creature of Nature reigned, is admirable and worthy to be effected at any apparent cost. The theory is still that of the Roman lawyers, for in the phantasmagoria with which the Natural Condition is peopled, every feature and characteristic eludes the mind except the simplicity and harmony which possessed such charms for the jurisconsult; but the theory is, as it were, turned upside down. It is not the Law of Nature, but the State of Nature, which is now the primary subject of contemplation. The Roman had conceived that by careful observation of existing institutions parts of them could be singled out which either exhibited already, or could by judicious purification be made to exhibit, the vestiges of that reign of nature whose reality he faintly affirmed. Rousseau's belief was that a perfect social order could be evolved from the unassisted consideration of the natural state, a social order wholly irrespective of the actual condition of the world and wholly unlike it. The great difference between the views is that one bitterly and broadly condemns the present for its unlikeness to the ideal past; while the other, assuming the present to be as necessary as the past, does not affect to disregard or censure it. It is not worth our while to analyse with any particularity that philosophy of politics, art, education, ethics, and social relation which was constructed on the basis of a state of nature. It still possesses singular fascination for the looser thinkers of every country, and is no doubt the parent, more or less remote, of almost all the prepossessions which impede the employment of the Historical Method of inquiry, but its discredit with the higher minds of our day is deep enough to astonish those who are familiar with the extraordinary vitality of speculative error. Perhaps the question most frequently asked nowadays is not what is the value of these opinions, but what were the causes which gave them such overshadowing prominence a hundred years ago. The answer is, I conceive, a simple one. The study which in the last century would best have corrected the misapprehensions into which an exclusive attention to legal antiquities is apt to betray was the study of religion. But Greek religion, as then understood, was dissipated in imaginative myths. The Oriental religions, if noticed at all, appeared to be lost in vain cosmogonies. There was but one body of primitive records which was worth studying -- the early history of the Jews. But resort to this was prevented by the prejudices of the time. One of the few characteristics which the school of Rousseau had in common with the school of Voltaire was an utter disdain of all religious antiquities; and, more than all, of those of the Hebrew race. It is well known that it was a point of honour with the reasoners of that day to assume not merely that the institutions called after Moses were not divinely dictated, nor even that they were codified at a later date than that attributed to them, but that they and the entire Pentateuch were a gratuitous forgery, executed after the return from the Captivity. Debarred, therefore, from one chief security against speculative delusion, the philosophers of France, in their eagerness to escape from what they deemed a superstition of the priests, flung themselves headlong into a superstition of the lawyer.
But though the philosophy founded on the hypothesis of a state of nature has fallen low in general esteem, in so far as it is looked upon under its coarser and more palpable aspect, it does not follow that in its subtler disguises it has lost plausibility, popularity, or power. I believe, as I have said, that it is still the great antagonist of the Historical Method; and whenever (religious objections apart) any mind is seen to resist or contemn that mode of investigation, it will generally be found under the influence of a prejudice or vicious bias traceable to a conscious or unconscious reliance on a non-historic, natural, condition of society or the individual. It is chiefly, however, by allying themselves with political and social tendencies that the doctrines of Nature and her law have preserved their energy. Some of these tendencies they have stimulated, other they have actually created, to a great number they have given expression and form. They visibly enter largely into the ideas which constantly radiate from France over the civilised world, and thus become part of the general body of thought by which its civilisation is modified. The value of the influence which they thus exercise over the fortunes of the race is of course one of the points which our age debates most warmly, and it is beside the purpose of this treatise to discuss it. Looking back, however, to the period at which the theory of the state of nature acquired the maximum of political importance, there are few who will deny that it helped most powerfully to bring about the grosser disappointments of which the first French Revolution was fertile. It gave birth, or intense stimulus, to the vices of mental habit all but universal at the time, disdain of positive law, impatience of experience, and the preference of a priori to all other reasoning. In proportion too as this philosophy fixes its grasp on minds which have thought less than others and fortified themselves with smaller observation, its tendency is to become distinctly anarchical. It is surprising to note how many of the Sophismes Anarchiques which Dumont published for Bentham, and which embody Bentham's exposure of errors distinctively French, are derived from the Roman hypothesis in its French transformation, and are unintelligible unless referred to it. On this point too it is a curious exercise to consult the Moniteur during the principal eras of the Revolution. The appeals to the Law and State of Nature become thicker as the times grow darker. They are comparatively rare in the Constituent Assembly; they are much more frequent in the Legislative; in the Convention, amid the din of debate on conspiracy and war, they are perpetual.
There is a single example which very strikingly illustrates the effects of the theory of natural law on modern society, and indicates how very far are those effects from being exhausted. There cannot, I conceive, be any question that to the assumption of a Law Natural we owe the doctrine of the fundamental equality of human beings. That "all men are equal" is one of a large number of legal propositions which, in progress of time, have become political. The Roman jurisconsults of the Antonine era lay down that "omnes homines natura aequales sunt," but in their eyes this is a strictly juridical axiom. They intend to affirm that, under the hypothetical Law of Nature, and in so far as positive law approximates to it, the arbitrary distinctions which the Roman Civil Law maintained between classes of persons cease to have a legal existence. The rule was one of considerable importance to the Roman practitioner, who required to be reminded that, wherever Roman jurisprudence was assumed to conform itself exactly to the code of Nature, there was no difference in the contemplation of the Roman tribunals between citizen and foreigner, between freeman and slave, between Agnate and Cognate. The jurisconsults who thus expressed themselves most certainly never intended to censure the social arrangements under which civil law fell somewhat short of its speculative type; nor did they apparently believe that the world would ever see human society completely assimilated to the economy of nature. But when the doctrine of human equality makes its appearance in a modern dress it has evidently clothed itself with a new shade of meaning. Where the Roman jurisconsult had written "aequales sunt," meaning exactly what he said, the modern civilian wrote "all men are equal" in the sense of "all men ought to be equal." The peculiar Roman idea that natural law coexisted with civil law and gradually absorbed it, had evidently been lost sight of, or had become unintelligible, and the words which had at most conveyed a theory conceding the origin, composition, and development of human institutions, were beginning to express the sense of a great standing wrong suffered by mankind. As early as the beginning of the fourteenth century, the current language conceding the birthstate of men, though visibly intended to be identical with that of Ulpian and his contemporaries, has assumed an altogether different form and meaning. The preamble to the celebrated ordinance of King Louis Hutin enfranchising the serfs of the royal domains would have sounded strangely to Roman ears. "Whereas, according to natural law, everybody ought to be born free; and by some usages and customs which, from long antiquity, have been introduced and kept until now in our realm, and peradventure by reason of the misdeeds of their predecessors, many persons of our common people have fallen into servitude, therefore, We, etc." This is the enunciation not of a legal rule but of a political dogma; and from this time the equality of men is spoken of by the French lawyers just as if it were a political truth which happened to have been preserved among the archives of their science. Like all other deductions from the hypothesis of a Law Natural, and like the belief itself in a Law of Nature, it was languidly assented to and suffered to have little influence on opinion and practice until it passed out of the possession of the lawyers into that of the literary men of the eighteenth century and of the public which sat at their feet. With them it became the most distinct tenet of their creed, and was even regarded as a summary of all the others. It is probable, however, that the power which it ultimately acquired over the events of 1789 was not entirely owing to its popularity in France, for in the middle of the century it passed over to America. The American lawyers of the time, and particularly those of Virginia, appear to have possessed a stock of knowledge which differed chiefly from that of their English contemporaries in including much which could only have been derived from the legal literature of continental Europe. A very few glances at the writings of Jefferson will show how strongly his mind was affected by the semi-juridical, semipopular opinions which were fashionable in France, and we cannot doubt that it was sympathy with the peculiar ideas of the French jurists which led him and the other colonial lawyers who guided the course of events in America to join the specially French assumption that "all men are born equal" with the
assumption, more familiar to Englishmen, that "all men are born free," in the very first lines of their Declaration of Independence. The passage was one of great importance to the history of the doctrine before us. The American lawyers, in thus prominently and emphatically affirming the fundamental equality of human beings, gave an impulse to political movements in their own country, and in a less degree in Great Britain, which is far from having yet spent itself; but besides this they returned the dogma they had adopted to its home in France, endowed with vastly greater energy and enjoying much greater claims on general reception and respect. Even the more cautious politicians of the first Constituent Assembly repeated Ulpian's proposition as if it at once commended itself to the instincts and intuitions of mankind; and of all the "principles of 1789" it is the one which has been least strenuously assailed, which has most thoroughly leavened modern opinion, and which promises to modify most deeply the constitution of societies and the politics of states.
The grandest function of the Law of Nature was discharged in giving birth to modern International Law and to the modern Law of War, but this part of its effects must here be dismissed with consideration very unequal to its importance. Among the postulates which form the foundation of International Law, or of so much of it as retains the figure which it received from its original architects, there are two or three of pre-eminent importance. The first of all is expressed in the position that there is a determinable Law of Nature. Grotius and his successor took the assumption directly from the Romans, but they differed widely from the Roman jurisconsults and from each other in their ideas as to the mode of determination. The ambition of almost every Publicist who has flourished since the revival of letters has been to provide new and more manageable definitions of Nature and of her law, and it is indisputable that the conception in passing through the long series of writers on Public Law has gathered round it a large accretion, consisting of fragments of ideas derived from nearly every theory of ethic which has in its turn taken possession of the schools. Yet it is a remarkable proof of the essentially historical character of the conception that, after all the efforts which have been made to evolve the code of nature from the necessary characteristic of the natural state, so much of the result is just what it would have been if men had been satisfied to adopt the dicta of the Roman lawyers without questioning or reviewing them. Setting aside the Conventional or Treaty Law of Nations, it is surprising how large a part of the system is made up of pure Roman law. Wherever there is a doctrine of the jurisconsult affirmed by them to be in harmony with the Jus Gentium, the publicists have found a reason for borrowing it, however plainly it may bear the marks of a distinctively Roman origin. We may observe too that the derivative theories are afflicted with the weakness of the primary notion. In the majority of the Publicists, the mode of thought is still "mixed." In studying these writers, the great difficulty is always to discover whether they are discussing law or morality -- whether the state of international relations they describe is actual or ideal -- whether they lay down that which is, or that which, in their opinion, ought to be.
The assumption that Natural Law is binding on states inter se is the next in rank of those which underlie International Law. A series of assertions or admissions of this principle may be traced up to the very infancy of modern juridical science, and at first sight it seems a direct inference from the teaching of the Romans. The civil condition of society being distinguished from the natural by the fact that in the first there is a distinct author of law, while in the last there is none, it appears as if the moment a number of units were acknowledged to obey no common sovereign or political superior they were thrown back on the ulterior behests of the Law Natural. States are such units; the hypothesis of their independence excludes the notion of a common lawgiver, and draws with it, therefore, according to a certain range of ideas, the notion of subjection to the primeval order of nature. The alternative is to consider independent communities as not related to each other by any law, but this condition of lawlessness is exactly the vacuum which the Nature of the jurisconsults abhorred. There is certainly apparent reason for thinking that if the mind of a Roman lawyer rested on any sphere from which civil law was banished, it would instantly fill the void with the ordinances of Nature. It is never safe, however, to assume that conclusions, however certain and immediate in our own eyes, were actually drawn at any period of history. No passage has ever been adduced from the remains of Roman law which, in my judgment, proves the jurisconsults to have believed natural law to have obligatory force between independent commonwealths; and we cannot but see that to citizens of the Roman empire who regarded their sovereign's dominions as conterminous with civilisation, the equal subjection of states to the Law of Nature, if contemplated at all, must have seemed at most an extreme result of curious speculation. The truth appears to be that modern International Law, undoubted as is its descent from Roman law, is only connected with it by an irregular filiation. The early modern interpreters of the jurisprudence of Rome, misconceiving the meaning of Jus Gentium, assumed without hesitation that the Romans had bequeathed to them a system of rules for the adjustment of international transactions. This "Law of Nations" was at first an authority which had formidable competitors to strive with, and the condition of Europe was long such as to preclude its universal reception. Gradually, however, the western world arranged itself in a form more favourable to the theory of the civilians; circumstances destroyed the credit of rival doctrines; and at last, at a peculiarly felicitous conjuncture, Ayala and Grotius were able to obtain for it the enthusiastic assent of Europe, an assent which has been over and over again renewed in every variety of solemn engagement. The great men to whom its triumph is chiefly owing attempted, it need scarcely be said, to place it on an entirely new basis, and it is unquestionable that in the course of this displacement they altered much of its structure, though far less of it than is commonly supposed. Having adopted from the Antonine jurisconsults the position that the Jus Gentium and the Jus Naturae were identical, Grotius, with his immediate predecessors and his immediate successors, attributed to the Law of Nature an authority which would never perhaps have been claimed for it, if "Law of Nations" had not in that age been an ambiguous expression. They laid down unreservedly that Natural Law is the code of states, and thus put in operation a process which has continued almost down to our own day, the process of engrafting on the international system rules which are supposed to have been evolved from the unassisted contemplation of the conception of Nature. There is too one consequence of immense practical importance to mankind which, though not unknown during the early modern history of Europe, was never clearly or universally acknowledged till the doctrines of the Grotian school had prevailed. If the society of nations is governed by Natural Law, the atoms which compose it must be absolutely equal. Men under the sceptre of Nature are all equal, and accordingly commonwealths are equal if the international state be one of nature. The proposition that independent communities, however different in size and power, are all equal in the view of the law of nations, has largely contributed to the happiness of mankind, though it is constantly threatened by the political tendencies of each successive age. It is a doctrine which probably would never have obtained a secure footing at all if international Law had not been entirely derived from the majestic claims of Nature by the Publicists who wrote after the revival of letters.
On the whole, however, it is astonishing, as I have observed before, how small a proportion the additions made to international Law since Grotius's day bear to the ingredients which have been simply taken from the most ancient stratum of the Roman Jus Gentium. Acquisition of territory has always been the great spur of national ambition, and the rules which govern this acquisition, together with the rules which moderate the wars in which it too frequently results, are merely transcribed from the part of the Roman law which treats of the modes of acquiring property jure gentium. These modes of acquisition were obtained by the elder jurisconsults, as I have attempted to explain, by abstracting a common ingredient from the usages observed to prevail among the various tribes surrounding Rome; and, having been classed on account of their origin in the "law common to all nations," they were thought by the later lawyers to fit in, on the score of their simplicity, with the more recent conception of a Law Natural. They thus made their way into the modern Law of Nations, and the result is that those parts of the international system which refer to dominion, its nature, its limitations, the modes of acquiring and securing it, are pure Roman Property Law -- so much, that is to say, of the Roman Law of Property as the Antonine jurisconsults imagined to exhibit a certain congruity with the natural state. In order that these chapters of International Law may be capable of application, it is necessary that sovereigns should be related to each other like the members of a group of Roman proprietors. This is another of the postulates which lie at the threshold of the International Code, and it is also one which could not possibly have been subscribed to during the first centuries of modern European history.. It is resolvable into the double proposition that "sovereignty is territorial," i.e. that it is always associated with the proprietorship of a limited portion of the earth's surface, and that "sovereigns inter se are to be deemed not paramount, but absolute, owners of the state's territory."
Many contemporary writers on International Law tacitly assume that the doctrines of their system, founded on principles of equity and common sense, were capable of being readily reasoned out in every stage of modern civilisation. But this assumption, while it conceals some real defects of the international theory, is altogether untenable, so far as regards a large part of modern history. It is not true that the authority of the Jus Gentium in the concerns of nations was always uncontradicted; on the contrary, it had to struggle long against the claims of several competing systems. It is again not true that the territorial character of sovereignty was always recognised, for long after the dissolution of the Roman dominion the minds of men were under the empire of ideas irreconcileable with such a conception. An old order of things, and of views founded on it, had to decay -- a new Europe, and an apparatus of new notions congenial to it, had to spring up before two of the chiefest postulates of International Law could be universally conceded.
It is a consideration well worthy to be kept in view that during a large part of what we usually term modern history no such conception was entertained as that of "territorial sovereignty." Sovereignty was not associated with dominion over a portion or subdivision of the earth. The world had lain for so many centuries under the shadow of Imperial Rome as to have forgotten that distribution of the vast spaces comprised in the empire which had once parcelled them out into a number of independent commonwealths, claiming immunity from extrinsic interference, and pretending to equality of national rights. After the subsidence of the barbarian irruptions, the notion of sovereignty that prevailed seems to have been twofold. On the one hand it assumed the form of what may be called "tribe-sovereignty." The Franks, the Burgundians, the Vandals, the Lombards, and Visigoths were masters, of course, of the territories which they occupied, and to which some of them have given a geographical appellation; but they based no claim of right upon the fact of territorial possession, and indeed attached no importance to it whatever. They appear to have retained the traditions which they brought with them from the forest and the steppe, and to have still been in their own view a patriarchal society a nomad horde, merely encamped for the time upon the soil which afforded them sustenance. Part of Transalpine Gaul, with part of Germany, had now become the country de facto occupied by the Franks -- it was France; but the Merovingian line of chieftains, the descendants of Clovis, were not Kings of France, they were Kings of the Franks. The alternative to this peculiar notion of sovereignty appears to have been -- and this is the important point -- the idea of universal dominion. The moment a monarch departed from the special relation of chief to clansmen, and became solicitous, for purposes of his Own, to invest himself with a novel form of sovereignty, the only precedent which suggested itself for his adoption was the domination of the Emperors of Rome. To parody a common quotation, he became "aut Caesar aut nullus." Either he pretended to the full prerogative of the Byzantine Emperor, or he had no political status whatever. In our own age, when a new dynasty is desirous of obliterating the prescriptive title of a deposed line of sovereigns, it takes its designation from the people, instead of the territory. Thus we have Emperors and Kings of the French, and a King of the Belgians. At the period of which we have been speaking, under similar circumstances a different alternative presented itself. The Chieftain who would no longer call himself King of the tribe must claim to be Emperor of the world. Thus, when the hereditary Mayors of the Palace had ceased to compromise with the monarchs they had long since virtually dethroned, they soon became unwilling to call themselves Kings of the Franks, a title which belonged to the displaced Merovings; but they could not style themselves Kings of France, for such a designation, though apparently not unknown, was not a title of dignity. Accordingly they came forward as aspirants to universal empire. Their motive has been greatly misapprehended. It has been taken for granted by recent French writers that Charlemagne was far before his age, quite as much in the character of his designs as in the energy with which he prosecuted them. Whether it be true or not that anybody is at any time before his age, it is certainly true that Charlemagne, in aiming at an unlimited dominion, was emphatically taking the only course which the characteristic ideas of his age permitted him to follow. Of his intellectual eminence there cannot be a question, but it is proved by his acts and not by his theory.
These singularities of view were not altered on the partition of the inheritance of Charlemagne among his three grandsons. Charles the Bald, Lewis, and Lothair were still theoretically -- if it be proper to use the word -- Emperors of Rome. Just as the Caesars of the Eastern and Western Empires had each been de jure emperor of the whole world, with defacto control over half of it, so the three Carlovingians appear to have considered their power as limited, but their title as unqualified. The same speculative universality of sovereignty continued to be associated with the Imperial throne after the second division on the death of Charles the Fat, and, indeed, was never thoroughly dissociated from it so long as the empire of Germany lasted. Territorial sovereignty -- the view which connects sovereignty with the possession of a limited portion of the earth's surface -- was distinctly an offshoot, though a tardy one, of feudalism. This might have been expected a priori, for it was feudalism which for the first time linked personal duties, and by consequence personal rights, to the ownership of land. Whatever be the proper view of its origin and legal nature, the best mode of vividly picturing to ourselves the feudal organisation is to begin with the basis, to consider the relation of the tenant to the patch of soil which created and limited his services -- and then to mount up, through narrowing circles of super-feudation, till we approximate to the apex of the system. Where that summit exactly was during the later portion of the dark ages it is not easy to decide. Probably, wherever the conception of tribe sovereignty had really decayed, the topmost point was always assigned to the supposed successor of the Caesars of the West. But before long, when the actual sphere of Imperial authority had immensely contracted, and when the emperors had concentrated the scanty remains of their power upon Germany and North Italy, the highest feudal superiors in all the outlying portions of the former Carlovingian empire found themselves practically without a supreme head. Gradually they habituated themselves to the new situation, and the fact of immunity put at last out of sight the theory of dependence; but there are many symptoms that this change was not quite easily accomplished; and, indeed, to the impression that in the nature of things there must necessarily be a culminating domination somewhere, we may, no doubt, refer the increasing tendency to attribute secular superiority to the See of Rome. The completion of the first stage in the revolution of opinion is marked, of course, by the accession of the Capetian dynasty in France. When the feudal prince of a limited territory surrounding Paris began, from the accident of his uniting an unusual number of suzerainties in his own person, to call himself King of France, he became king in quite a new sense, a sovereign standing in the same relation to the soil of France as the baron to his estate, the tenant to his freehold. The precedent, however, was as influential as it was novel, and the form of the monarchy in France had visible effects in hastening changes which were elsewhere proceeding in the same direction. The kingship of our Anglo-Saxon regal houses was midway between the chieftainship of a tribe and a territorial supremacy,. but the superiority of the Norman monarchs, imitated from that of the King of France, was distinctly a territorial sovereignty. Every subsequent dominion which was established or consolidated was formed on the later model. Spain, Naples, and the principalities founded on the ruins of municipal freedom in Italy, were all under rulers whose sovereignty was territorial. Few things, I may add, are more curious than the gradual lapse of the Venetians from one view to the other. At the commencement of its foreign conquests, the republic regarded itself as an antitype of the Roman commonwealth, governing a number of subject provinces. Move a century onwards, and you find that it wishes to be looked upon as a corporate sovereign, claiming the rights of a feudal suzerain over its possessions in Italy and the Aegean.
During the period through which the popular ideas on the subject of sovereignty were undergoing this remarkable change, the system which stood in the place of what we now call International Law was heterogeneous in form and inconsistent in the principles to which it appealed. Over so much of Europe as was comprised in the Romano-German empire, the connection of the confederate states was regulated by the complex and as yet incomplete mechanism of the Imperial constitution; and, surprising as it may seem to us, it was a favourite notion of German lawyers that the relations of commonwealths, whether inside or outside the empire, ought to be regulated not by the Jus Gentium, but by the pure Roman jurisprudence, of which Caesar was still the centre. This doctrine was less confidently repudiated in the outlying countries than we might have supposed antecedently; but, substantially, through the rest of Europe feudal subordinations furnished a substitute for a public law; and when those were undetermined or ambiguous, there lay behind, in theory at least, a supreme regulating force in the authority of the head of the Church. It is certain, however, that both feudal and ecclesiastical influences were rapidly decaying during the fifteenth, and even the fourteenth century,. and if we closely examine the current pretexts of wars, and the avowed motives of alliances, it will be seen that, step by step with the displacement of the old principles, the views afterwards harmonised and consolidated by Ayala and Grotius were making considerable progress, though it was silent and but slow. Whether the fusion of all the sources of authority would ultimately have evolved a system of international relations, and whether that system would have exhibited material differences from the fabric of Grotius, is not now possible to decide, for as a matter of fact the Reformation annihilated all its potential elements except one. Beginning in Germany it divided the princes of the empire by a gulf too broad to be bridged over by the Imperial supremacy, even if the Imperial superior had stood neutral. He, however, was forced to take colour with the church against the reformer; the Pope was, as a matter of course, in the same predicament; and thus the two authorities to whom belonged the office of mediation between combatants became themselves the chiefs of one great faction in the schism of the nations. Feudalism, already enfeebled and discredited as a principle of public relations, furnished no bond whatever which was stable enough to countervail the alliances of religion. In a condition, therefore, of public law which was little less than chaotic, those views of a state system to which the Roman jurisconsults were supposed to have given their sanction alone remained standing. The shape, the symmetry and the prominence which they assumed in the hands of Grotius are known to every educated man; but the great marvel of the Treatise "De Jure Belli et Pacis," was its rapid, complete, and universal success. The horrors of the Thirty Years' War, the boundless terror and pity which the unbridled license of the soldiery was exciting, must, no doubt, be taken to explain that success in some measure, but they do not wholly account for it. Very little penetration into the ideas of that age is required to convince one that if the ground plan of the international edifice which was sketched in the great book of Grotius had not appeared to be theoretically perfect, it would have been discarded by jurists and neglected by statesmen and soldiers.
It is obvious that the speculative perfection of the Grotian system is intimately connected with that conception of territorial sovereignty which we have been discussing. The theory of International Law assumes that commonwealths are, relatively to each other, in a state of nature; but the component atoms of a natural society must, by the fundamental assumption, be insulated and independent of each other. If there be a higher power connecting them, however slightly and occasionally by the claim of common supremacy, the very conception of a common superior introduces the notion of positive law, and excludes the idea of a law natural. It follows, therefore, that if the universal suzerainty of an Imperial head had been admitted even in bare theory, the labours of Grotius would have been idle. Nor is this the only point of junction between modern public law and those views of sovereignty of which I have endeavoured to describe the development. I have said that there are entire departments of international jurisprudence which consist of the Roman Law of Property. What then is the inference? It is, that if there had been no such change as I have described in the estimate of sovereignty -- if sovereignty had not been associated with the proprietorship of a limited portion of the earth, had not, in other words, become territorial -- three parts of the Grotian theory would have been incapable of application.