Between the time of which I have now spoken, and the present, took place the most important events of my private life. The first of these was my marriage, in April, 1851, to the lady whose incomparable worth had made her friendship the greatest source to me both of happiness and of improvement, during many years in which we never expected to be in any closer relation to one another. Ardently as I should have aspired to this complete union of our lives at any time in the course of my existence at which it had been practicable, I, as much as my wife, would far rather have foregone that privilege for ever, than have owed it to the premature death of one for whom I had the sincerest respect, and she the strongest affection. That event, however, having taken place in July, 1849, it was granted to me to derive from that evil my own greatest good, by adding to the partnership of thought, feeling, and writing which had long existed, a partnership of our entire existence. For seven and a-half years that blessing was mine; for seven and a-half only! I can say nothing which could describe, even in the faintest manner, what that loss was and is. But because I know that she would have wished it, I endeavour to make the best of what life I have left, and to work on for her purposes with such diminished strength as can be derived from thoughts of her, and communion with her memory.

When two persons have their thoughts and speculations completely in common; when all subjects of intellectual or moral interest are discussed between them in daily life, and probed to much greater depths than are usually or conveniently sounded in writings intended for general readers; when they set out from the same principles, and arrive at their conclusions by processes pursued jointly, it is of little consequence in respect to the question of originality, which of them holds the pen; the one who contributes least to the composition may contribute more to the thought; the writings which result are the joint product of both, and it must often be impossible to disentangle their respective parts, and affirm that this belongs to one and that to the other. In this wide sense, not only during the years of our married life, but during many of the years of confidential friendship which preceded, all my published writings were as much here work as mine; her share in them constantly increasing as years advanced. But in certain cases, what belongs to her can be distinguished, and specially identified. Over and above the general influence which her mind had over mine, the most valuable ideas and features in these joint productions—those which have been most fruitful of important results, and have contributed most to the success and reputation of the works themselves—originated with her, were emanations from her mind, my part in them being no greater than in any of the thoughts which I found in previous writers, and made my own only by incorporating them with my own system of thought! During the greater part of my literary life I have performed the office in relation to her, which from a rather early period I had considered as the most useful part that I was qualified to take in the domain of thought, that of an interpreter of original thinkers, and mediator between them and the public; for I had always a humble opinion of my own powers as an original thinker, except in abstract science (logic, metaphysics, and the theoretic principles of political economy and politics), but thought myself much superior to most of my contemporaries in willingness and ability to learn from everybody; as I found hardly anyone who made such a point of examining what was said in defence of all opinions, however new or however old, in the conviction that even if they were errors there might be a substratum of truth underneath them, and that in any case the discovery of what it was that made them plausible, would be a benefit to truth. I had, in consequence, marked this out as a sphere of usefulness in which I was under a special obligation to make myself active; the more so, as the acquaintance I had formed with the ideas of the Coleridgians, of the German thinkers, and of Carlyle, all of them fiercely opposed to the mode of thought in which I had been brought up, had convinced me that along with much error they possessed much truth, which was veiled from minds otherwise capable of receiving it by the transcendental and mystical phraseology in which they were accustomed to shut it up, and from which they neither cared, nor knew how, to disengage it; and I did not despair of separating the truth from the error, and exposing it in terms which would be intelligible and not repulsive to those on my own side in philosophy. Thus prepared, it will easily be believed that when I came into close intellectual communion with a person of the most eminent faculties, whose genius, as it grew and unfolded itself in thought, continually struck out truths far in advance of me, but in which I could not, as I had done in those others, detect any mixture of error, the greatest part of my mental growth consisted in the assimilation of those truths, and the most valuable part of my intellectual work was in building the bridges and clearing the paths which connected them with my general system of thought.[4]

The first of my books in which her share was conspicious was the Principles of Political Economy. The System of Logic owed little to her except in the minuter matters of composition, in which respect my writings, both great and small, have largely benefited by her accurate and clear-sighted criticism.[5] The chapter of the Political Econonomy which has had a greater influence on opinion than all the rest, that on 'the Probable Future of the Labouring Classes,' is entirely due to her; in the first draft of the book, that chapter did not exist. She pointed out the need of such a chapter, and the extreme imperfection of the book without it; she was the cause of my writing it; and the more general part of the chapter, the statement and discussion of the two opposite theories respecting the proper condition of the labouring classes, was wholly an exposition of her thoughts, often in words taken from her own lips. The purely scientific part of the Political Economy I did not learn from her; but it was chiefly her influence that gave to the book that general tone by which it is distinguished from all previous expositions of Political Economy that had any pretension to being scientific, and which has made it so useful in conciliating minds which those previous expositions had repelled. This tone consisted chiefly in making the proper distinction between the laws of the Production of Wealth—which are laws of nature, dependent on the properties of objects—and the modes of its Distribution, which, subject to certain conditions, depend on human will. The commom run of political economists confuse these together, under the designation of economic laws, which they deem incapable of being defeated or modified by human effort; ascribing the same necessity to things dependent on the unchangeable conditions of our earthly existence, and to those which, being but the necessary consequences of particular social arrangements, are merely co-extensive with these; given certain institutions and customs, wages, profits, and rent will be determined by certain causes; but this class of political economists drop the indispensable presupposition, and argue that these causes must, by an inherent necessity, against which no human means can avail, determine the shares which fall, in the division of the produce, to labourers, capitalists, and landlords. The Principles of Political Economy yielded to none of its predecessors in aiming at the scientific appreciation of the action of these causes, under the conditions which they presuppose; but it set the example of not treating those conditions as final. The economic generalizations which depend not on necessaties of nature but on those combined with the existing arrangements of society, it deals with only as provisional, and as liable to be much altered by the progress of social improvement. I had indeed partially learnt this view of things from the thoughts awakened in me by the speculations of the St. Simonians; but it was made a living principle pervading and animating the book by my wife's promptings. This example illustrates well the general character of what she contributed to my writings. What was abstract and purely scientific was generally mine; the properly human element came from her: in all that concerned the application of philosophy to the exigencies of human society and progress, I was her pupil, alike in boldness of speculation and cautiousness of practical judgment. For, on the one hand, she was much more courageous and far-sighted than without her I should have been, in anticipation of an order of things to come, in which many of the limited generalizations now so often confounded with universal principles will cease to be applicable. Those parts of my writings, and especially of the Political Economy, which contemplate possibilities in the future such as, when affirmed by Socialists, have in general been fiercely denied by political economists, would, but for her, either have been absent, or the suggestions would have been made much more timidly and in a more qualified form. But while she thus rendered me bolder in speculation on human affairs, her practical turn of mind, and her almost unerring estimate of practical obstacles, repressed in me all tendencies that were really visionary. Her mind invested all ideas in a concrete shape, and formed to itself a conception of how they would actually work: and her knowledge of the existing feelings and conduct of mankind was so seldom at fault, that the weak point in any unworkable suggestion seldom escapes her.[6]

During the two years which immediately preceded the cessation of my official life, my wife and I were working together at the "Liberty." I had first planned and written it as a short essay in 1854. It was in mounting the steps of the Capitol, in January, 1855, that the thought first arose of converting it into a volume. None of my writings have been either so carefully composed, or so sedulously corrected as this. After it had been written as usual twice over, we kept it by us, bringing it out from time to time, and going through it de novo, reading, weighing, and criticizing every sentence. Its final revision was to have been a work of the winter of 1858-9, the first after my retirement, which we had arranged to pass in the south of Europe. That hope and every other were frustrated by the most unexpected and bitter calamity of her death—at Avignon, on our way to Montpellier, from a sudden attack of pulmonary congestion.

Since then I have sought for such allevation as my state admitted of, by the mode of life which most enabled me to feel her still near me. I bought a cottage as close as possible to the place where she is buried, and there her daughter (my fellow-sufferer and now my chief comfort) and I, live constantly during a great portion of the year. My objects in life are solely those which were hers; my pursuits and occupations those in which she shared, or sympathized, and which are indissolubly associated with her. Her memory is to me a religion, and her approbation the standard by which, summing up as it does all worthiness, I endeavour to regulate my life.

After my irreparable loss, one of my earliest cares was to print and publish the treatise, so much of which was the work of her whom I had lost, and consecrate it to her memory. I have made no alteration or addition to it, nor shall I ever. Though it wants the last touch of her hand, no substitute for that touch shall ever be attempted by mine.

The Liberty was more directly and literally our joint production than anything else which bears my name, for there was not a sentence of it that was not several times gone through by us together, turned over in many ways, and carefully weeded of any faults, either in thought or expression, that we detected in it. It is in consequence of this that, although it never underwent her final revision, it far surpasses, as a mere specimen of composition, anything which has proceeded from me either before or since. With regard to the thoughts, it is difficult to identify any particular part or element as being more hers than all the rest. The whole mode of thinking of which the book was the expression, was emphatically hers. But I also was so thoroughly imbued with it, that the same thoughts naturally occurred to us both. That I was thus penetrated with it, however, I owe in a great degree to her. There was a moment in my mental progress when I might easily have fallen into a tendency towards over-government, both social and political; as there was also a moment when, by reaction from a contrary excess, I might have become a less thorough radical and democrat than I am. In both these points, as in many others, she benefited me as much by keeping me right where I was right, as by leading me to new truths, and ridding me of errors. My great readiness and eagerness to learn from everybody, and to make room in my opinions for every new acquisition by adjusting the old and the new to one another, might, but for her steadying influence, have seduced me into modifying my early opinions too much. She was in nothing more valuable to my mental development than by her just measure of the relative importance of different considerations, which often protected me from allowing to truths I had only recently learnt to see, a more important place in my thoughts than was properly their due.

The Liberty is likely to survive longer than anything else that I have written (with the possible exception of the Logic), because the conjunction of her mind with mine has rendered it a kind of philosophic text-book of a single truth, which the changes progressively taking place in modern society tend to bring out into ever stronger relief: the importance, to man and society of a large variety in types of character, and of giving full freedom to human nature to expand itself in innumerable and conflicting directions. Nothing can better show how deep are the foundations of this truth, than the great impression made by the exposition of it at a time which, to superficial observation, did not seem to stand much in need of such a lesson. The fears we expressed, lest the inevitable growth of social equality and of the government of public opinion, should impose on mankind an oppressive yoke of uniformity in opinion and practice, might easily have appeared chimerical to those who looked more at present facts than at tendencies; for the gradual revolution that is taking place in society and institutions has, thus far, been decidedly favourable to the development of new opinions, and has procured for them a much more unprejudiced hearing than they previously met with. But this is a feature belonging to periods of transition, when old notions and feelings have been unsettled, and no new doctrines have yet succeeded to their ascendancy. At such times people of any mental activity, having given up their old beliefs, and not feeling quite sure that those they still retain can stand unmodified, listen eagerly to new opinions. But this state of things is necessarily transitory: some particular body of doctrine in time rallies the majority round it, organizes social institutions and modes of action conformably to itself, education impresses this new creed upon the new generations without the mental processes that have led to it, and by degrees it acquires the very same power of compression, so long exercised by the creeds of which it had taken the place. Whether this noxious power will be exercised, depends on whether mankind have by that time become aware that it cannot be exercised without stunting and dwarfing human nature. It is then that the teachings of the Liberty will have their greatest value. And it is to be feared that they will retain that value a long time.

As regards originality, it has of course no other than that which every thoughtful mind gives to its own mode of conceiving and expressing truths which are common property. The leading thought of the book is one which though in many ages confined to insulated thinkers, mankind have probably at no time since the beginning of civilization been entirely without. To speak only of the last few generations, it is distinctly contained in the vein of important thought respecting education and culture, spread through the European mind by the labours and genius of Pestalozzi. The unqualified championship of it by Wilhelm von Humboldt is referred to in the book; but he by no means stood alone in his own country. During the early part of the present century the doctrine of the rights of individuality, and the claim of the moral nature to develop itself in its own way, was pushed by a whole school of German authors even to exaggeration; and the writings of Goethe, the most celebrated of all German authors, though not belonging to that or to any other school, are penetrated throughout by views of morals and of conduct in life, often in my opinion not defensible, but which are incessantly seeking whatever defence they admit of in the theory of the right and duty of self-development. In our own country before the book On Liberty was written, the doctrine of Individuality had been enthusiastically asserted, in a style of vigorous declamation sometimes reminding one of Fichte, by Mr. William Maccall, in a series of writings of which the most elaborate is entitled Elements of Individualism: and a remarkable American, Mr. Warren, had framed a System of Society, on the foundation of the Sovereignty of the individual, had obtained a number of followers, and had actually commenced the formation of a Village Community (whether it now exists I know not), which, though bearing a superficial resemblance to some of the projects of Socialists, is diametrically opposite to them in principle, since it recognizes no authority whatever in Society over the individual, except to enforce equal freedom of development for all individualities. As the book which bears my name claimed no originality for any of its doctrines, and was not intended to write their history, the only author who had preceded me in their assertion, of whom I thought it appropriate to say anything, was Humboldt, who furnished the motto to the work; although in one passage I borrowed from the Warrenites their phrase, the sovereignty of the individual. It is hardly necessary here to remark that there are abundant differences in detail, between the conception of the doctrine by any of the predecessors I have mentioned, and that set forth in the book.

The political circumstances of the time induced me, shortly after, to complete and publish a pamphlet (Thoughts on Parliamentary Reform), part of which had been written some years previously on the occasion of one of the abortive Reform Bills, and had at the time been approved and revised by her. Its principal features were, hostility to the Ballot (a change of opinion in both of us, in which she rather preceded me), and a claim of representation for minorities; not, however, at that time going beyond the cumulative vote proposed by Mr. Garth Marshall. In finishing the pamphlet for publication, with a view to the discussions on the Reform Bill of Lord Derby's and Mr. Disraeli's Government in 1859, I added a third feature, a plurality of votes, to be given, not to property, but to proved superiority of education. This recommended itself to me as a means of reconciling the irresistible claim of every man or woman to be consulted, and to be allowed a voice, in the regulation of affairs which vitally concern them, with the superiority of weight justly due to opinions grounded on superiority of knowledge. The suggestion, however, was one which I had never discussed with my almost infallible counsellor, and I have no evidence that she would have concurred in it. As far as I have been able to observe, it has found favour with nobody; all who desire any sort of inequality in the electoral vote, desiring it in favour of property and not of intelligence or knowledge. If it ever overcomes the strong feeling which exists against it, this will only be after the establishment of a systematic National Education by which the various grades of politically valuable acquirement may be accurately defined and authenticated. Without this it will always remain liable to strong, possibly conclusive, objections; and with this, it would perhaps not be needed.