Nothing, it is indeed true, so blasts a man's assurance as to have his ideas and arguments on a certain matter, or on matters in general, exposed as defective, and worst of all as positively inconsistent, and with his discomfiture human nature must always entertain the warmest kind of sympathy. In fact, upon just this sympathy I have been depending in the development of the argument of this book. But human nature, however sympathetic, is really superior to any momentary discomfiture, and most if not all men sooner or later come to value highly even their once discomfiting inconsistencies. "I am glad," we seem to hear a fellow-being say, "that after all, in spite of myself, I did recognize the other side. You abused me and called me double; yet so doing you were double too. I see now that my duplicity saved me, not, however, for your view or for another's, but for the both-sided and true, which we both shared and served"; and exactly such a reflection on the inconsistencies of experiences, in their less or in their more fundamental manifestations, is the burden of the present chapter. Again, to one who complained that with every breath he took he had to contradict himself, respiration being as necessary to his breathing as inspiration, just as in walking falling is as necessary as rising, we might properly and satisfactorily reply: "You are really alive, sir," and just this answer is also quite pertinent to any who might be disposed in their doubting to despair over the essential duplicity of human experience. Is not experience more than any one idea or any one ideal? Being really alive, is it not infinitely more than this or that thing, than this or that place or time, than this or that power or will, than this or that point of view? And, if more, what so surely as universal duplicity and self-opposition can ensure at once its vitality and its integrity?

I am not forgetting or wishing my readers to forget that there are other defects in experience besides this of self-opposition, besides experience's habit of never failing to induce its own conflicts; but no defect seems to me so central or so conclusive as this, and none is at the same time so clear in its testimony to the intimacy of doubt and belief. Subjectivity, relativity, phenomenality, artificiality, partiality, and instability—certainly an imposing and appalling list, though logically I must suspect it of being at least a cross-division—are all noteworthy defects; but supposing the list exact and complete, we must recognize that all these either beget contradiction or are begotten by it. Contradiction is just the life or the heart of the interesting family to which they belong, and so in applying our thinker's stethoscope to that heart we shall have determined the hold upon life of the whole race.

Now, there are five things, some of them already foreseen, that seem worth saying here of the essential habit of self-contradiction, and they seem worth saying because so effectively and so comprehensively they warrant the conclusion that even upon our strongest reason for doubt we may rest a genuine case for belief.

Thus, for the first of the five, contradiction incites and even in itself implies movement; it requires, or positively it is, action. As a mode of thinking, as a logical form, it is the way, perhaps the only possible way, in which the mind can, so to speak, make a cross-section or take a picture of activity or give the semblance of fixity, the formal appearance of static nature, to what is dynamic. The photographer trying for a portrait of reality might ask it only to look pleasant, but the logician, for whom reality was essentially dynamic, would demand manifest opposition, for in no other way could his art, limited to conditions of rest,[1] be equal to its subject. Where experience is contradictory, then, there is movement, whether for that which is known or for him that has the knowledge. In your character or mine, so like a lover's unselfish selfishness in its apparent inconsistencies, in our double views about reality or unity or law, in a subjective-objective science, in an agnostic philosophy, in all these the contradictions are only the marks of essential unrest, of necessary movement, that make the picture possible. For a world of opposites there can be no peace. The very things opposed are themselves fluent and unstable, and that third something, the tertium quid, a picture of which the opposition tries to be or to which the things opposed necessarily point, belongs, as Alice in Wonderland seems to have discovered, to yesterday or to-morrow, never to to-day.

But, secondly, contradiction, at least as here understood, is an expression, or in experience a means to the expression, as well as to the maintenance, of real unity. In general this is because real unity cannot take sides, and so can never reside in anything that is, but must rather be served by the co-operation of all things and in particular by their mutually corrective or balancing differences. This no doubt will appear to some readers as just one more example of a philosopher's impossible subtleties, as a mountain with its top in so rare an atmosphere that the common man would not dare to climb it if he could. Yet, suppose together we rise to the heights of this seeming impossibility by a little unprejudiced study of the conditions, remembering that the summits of very wonderful mountains, plainly impossible of ascent, have often been reached from the other side, and that difficulties of breathing are often due to a needless exhaustion. To take a first step, then, contradiction is only difference, or contrast, at its limit. Naturally there is some opposition, some mutual resistance, in all difference, in that, for example, between one man and another, or one thing and another, between religion and art, red and green, or warm and hot, and often the difference or the opposition seems very slight; but contradiction, so called, is only this difference abstracted and unrestrained—it is difference at its worst or best, difference as only opposition, or, once more, difference where any possible unity of the things opposed has lost all material ground or all chance of actual, visible form, and has become, accordingly, at most merely an empty, abstract principle. Contradiction, then, is difference so wide that unity seems wholly betrayed rather than served or maintained. A real unity, however, requires for its realization just the freedom from material form or ground which such extreme difference would force upon it. It therefore gains instead of losing reality by passing into the world of the materially and visibly empty and abstract, or, say, by leaving behind any hope of a finite residence and entering the sphere of the infinite, to which difference, or at least contradiction, so cordially invites—or expels—it. And, this being true, we can see how unity is served or maintained, as was said, by the contradictions of experience.

Commonly men have an idea that differences mean, or point to, unity, but they are more likely to suppose that the unity is by mere contrast or antithesis than clearly to recognize that it is a most intimate fact of the differences themselves. They will even see in a number of things only so many varying aspects of some one thing, and will go so far as to look upon the aspects as actually enriching and deepening the unity, but they still fail fully to appreciate how the real unity is immanent and immediate in the differences. Again, in all their thinking they contrast, and may consciously observe that they contrast, only objects or people that really have something in common, comparing, on the other hand, only such as in some way are manifestly different, and in their practical affairs they compete only with those who with them are parties to one and the same life, a fundamental sympathy, indeed, being a necessary condition of their rivalry, and actually and actively hate only the beings whom because of a common humanity they might love; but here, too, their appreciation lags behind the fact.

In life generally, moreover, in small things and in large, extremes do have the habit of meeting. A man's virtues are so near to his vices. The widest variations in things are only relatively at variance. Even what is cold is somewhat warm. Nothing is absolutely anything. In history a single ideal, rising to influence, has always divided men into two opposing camps. Witness the fact of bipartisanship, not in politics alone, but in all of life's interests. Democrats and Republicans, Radicals and Conservatives alike have loved their country and honoured their country's flag and, regardless of party, their country's heroes or patriots. Epicureans and Stoics—in recent times or long ago—have found the same life worth living. The Roman Law and the Roman Holiday, working together, like the right and the left hand, different yet in sympathy, made the great empire. Two men, furthermore, in active, open conflict are in truth at serious difference with each other; but, as they might even say, if their conflict were in the form of a debate, where words instead of fists or pistols were the weapons, in the bare, unapplied principle involved, or say in the abstract, in the final success of whichever is the "best man," they do and they must agree. Simply throughout this life of ours there has been and there can be no idealism without conflict and no conflict, whatever the issue or the manner, without common weapons, which means, too, without some common relationship and some common interest. As for the idealism, too, what is it but a demand for real unity? And the common weapons, or for quite general purposes, the common forms in which a conflict or an opposition is expressed, as if the hiding-place of unity, perhaps a sleeping unity, only indicate in the very differences a basis, a potential of agreement, even an earnest of an underlying and sometimes awakening accord. So, truly, in life at large extremes do meet. But commonly men recognize at most only that they meet, without realizing that their difference is intrinsic to a real unity.

Where unity is real, then, there must be infinite difference, and infinite difference is just what the contradictions of experience impose upon experience and make it responsible to. Infinite difference gives to everything an opposite and to all things unity; to every man a rival and to human society, as a whole, solidarity. Against the material it sets the spiritual; against [p.141] the particular, the general; against the subjective, the objective; against the living, the dead; against the lawful, the lawless; against the caused, the uncaused; and to all these, the spiritual and the material, the subjective and the objective, the living and the dead, the lawful and the lawless, the caused and the uncaused, it gives place in a perfect unity; not, of course, in any material unity, since such unity could not be perfect, but nevertheless in a real unity.

For our first step, therefore, in the ascent of that "impossible subtlety," contradiction is only difference at its greatest limit; for the second, difference in general, whether partial or extreme, marks an underlying, or more precisely an indwelling unity; and for the last step, real unity is served, not betrayed by difference. Moreover, the wider the difference, the nearer it be to positive contradiction or opposition, the more conclusive and effective is the service. Remember, real unity can never take sides; in the world of things it must be always both-sided. It cannot be here or there, now and then—be the then in the past or in the future, this or that. In the words, used of truth, perhaps an appropriate refrain for this book, it can have neither visible form nor body, neither habitation nor name; like the Son of Man, it cannot have where to lay its head. The particular opposition of life and death affords a peculiarly serviceable illustration, for it is, of course, at the bottom of many of the most searching paradoxes of our human experience. Real life cannot be confined to any single organic form or to any single group of organic forms. In fact, it cannot be bound even to the organic as commonly distinguished from the inorganic world. So for the biologist, very much as for the theologian, whenever life takes a residence, death must ensue sooner or later. Life and death, then, as opposites, become the medium of real life. But not only have we here a helpful illustration, also we have a suggestion that should prevent an easy misunderstanding. In general, as so plainly in this special case, the opposition, so necessary to reality in experience, to a real life or to any real unity, can itself be complete and effective, not through any single instance of extreme difference, not through the opposition of just two distinct things, but only through an accumulation or summation of all possible instances, so to speak, from difference at zero to difference at infinity. In fact, a real opposition or rather a truly infinite difference, could be only in such a sum. Not the single climax of death, but the constant dying, to which it is only a climax, is what makes real the opposition of life and death and makes this the medium, as was said, of the real life. Death must constantly condition all the movements and processes of life: it must have all possible degrees. And, in like manner, extreme difference at large, just to be real itself and to make for real unity, must be in and through all possible degrees of difference. In other words, the perfect opposition, or contradiction, upon which reality depends, like the perfect death, is rather a continuum than the wide gap, or chasm, which so many have thought it; it is a graduate difference, not a single cataclysmic difference. Difference in gradation or degree, I have sometimes heard it said, is not real difference; but this statement, though by no means without warrant or meaning, is misleading. Surely a cataclysmic difference, a "difference in kind," can be only one finite case of difference; the negative, or opposition, in it can be only relative; whereas, when in degree, difference becomes necessarily infinite. Accordingly, as we must not forget, from this point on through the remainder of this book, the contradiction of which we have been thinking and which we have found infecting experience at every turn, is not, what at first and even second thought it may have seemed, just an opposition of two things; between its lines, as it were, it is inclusive of, or maintained by, all the manifold and various things in life and consciousness; it is the completed, short-circuited sum of an infinite series. An infinitely many-sided world is the only world that can claim real unity, and a world of such real unity is the world to which the habit of contradiction, which we have observed, relates our human experience.

So far, then, in estimating the possible value of this central and essential defect of experience, we have found that it implies action and that it makes for, or testifies to, real unity. Now, thirdly, perhaps only to enlarge upon what has just been said, contradiction is an absolutely effective correction of narrowness or partiality or relativity or one-sidedness in life or consciousness, and so it makes experience not abstract, but realistic. This is in truth only another view of the worth of contradiction to integrity and vitality, to unity and reality, but it would emphasize, what is very interesting at least to the metaphysician, and cannot fail to be of some interest to the moralist and the theologian, that where there is real unity there is also true reality. Only the One is. The One and Being are the same. There can be but one substance, as also but one God. So men have said in effect throughout the ages, and where they have conceded reality or substantial character to manifoldness, the concession has simply concealed a reassertion, but with fuller and deeper meaning, of the intimacy of unity with reality. What makes for real unity or wholeness, then, must impart realistic character, giving actual contact and intimacy with just that of which, so to speak, the world is made. Now individual things or ideas always show life suffering in some measure under tangential digressions from the circle of its real wholeness, and only opposition can save them or can preserve the reality to which they both belong and contribute. Has not Emerson, among many others, declared with a cogency and a depth of meaning which quite defy the superficiality and levity attractive to a few, that mere consistency is narrow and confining? Any particular view-point or idea or ideal, any particular thing or activity, simply needs an opposite to balance the abstraction or digression which being particular must always involve. Particularity, specific individuality, is certainly a necessary condition of real worth in life, but with an equal necessity there could be no life, no conservation and wholeness of life if the particular, individual things stood unchallenged in the world, and no realistic experience, if experience were not thus paradoxical and divided against itself. Life, therefore, gets not only movement and unity from the contradictions that lie at the very heart of experience, but in getting unity it gets also contact with reality, and the three together may be summed up in the one word poise. Montaigne marvelled at the hopeless folly of mankind as compared with the wisdom of God, but man's folly is divided against itself and so imbued with God's wisdom; and with countless others he saw the ideas of man to be only subjective and unsubstantial and irresponsible, but man's ideas, though fanciful and illusory, though subjective and imaginative, work against each other for what is real and substantial. Man's ideas co-operate for their own correction and so for communion or intimacy with a character that is not less substantial or responsible than that of God himself.