The disease of Metaphysics, accordingly, is a perennial one. In all ages, those questions of Death and Immortality, Origin of Evil, Freedom and Necessity, must, under new forms, anew make their appearance; ever, from time to time, must the attempt to shape for ourselves some Theorem of the Universe be repeated. And ever unsuccessfully: for what Theorem of the Infinite can the Finite render complete? We, the whole species of Mankind, and our whole existence and history, are but a floating speck in the illimitable ocean of the All; yet in that ocean; indissoluble portion thereof; partaking of its infinite tendencies: borne this way and that by its deep-swelling tides, and grand ocean currents; - of which what faintest chance is there that we should ever exhaust the significance, ascertain the goings and comings? A region of Doubt, therefore, hovers forever in the background; in Action alone can we have certainty. Nay, properly Doubt is the indispensable, inexhaustible material whereon Action works, which Action has to fashion into Certainty and Reality; only on a canvas of Darkness, such is man's way of being, could the many-coloured picture of our Life paint itself and shine.
Thus if our eldest system of Metaphysics is as old as the Book of Genesis, our latest is that of Mr. Thomas Hope, published only within the current year.
It is a chronic malady that of Metaphysics, as we said, and perpetually recurs on us. At the utmost, there is a better and a worse in it; a stage of convalescence, and a stage of relapse with new sickness: these forever succeed each other, as is the nature of all Life-movement here below.
The first, or convalescent stage, we might also name that of Dogmatical or Constructive Metaphysics; when the mind constructively endeavours to scheme out and assert for itself an actual Theorem of the Universe, and therewith for a time rests satisfied. The second or sick stage might be called that of Sceptical or Inquisitory Metaphysics; when the mind having widened its sphere of vision, the existing Theorem of the Universe no longer answers the phenomena, no longer yields contentment; but must be torn in pieces, and certainty anew sought for in the endless realms of denial. All Theologies and sacred Cosmogonies belong, in some measure, to the first class; in all Pyrrhoni**, from Pyrrho down to Hume and the innumerable disciples of Hume, we have instances enough of the second. In the former, so far as it affords satisfaction, a temporary anodyne to doubt, an arena for wholesome action, there may be much good; indeed in this case, it holds rather of Poetry than of Metaphysics, might be called Inspiration rather than Speculation.
The latter is Metaphysics proper; a pure, unmixed, though from time to time a necessary evil.
For truly, if we look into it, there is no more fruitless endeavour than this same, which the Metaphysician proper toils in: to educe Conviction out of Negation. How, by merely testing and rejecting what is not, shall we ever attain knowledge of what is? Metaphysical Speculation, as it begins in No or Nothingness, so it must needs end in Nothingness; circulates and must circulate in endless vortices; creating, swallowing - itself. Our being is made up of Light and Darkness, the Light resting on the Darkness, and balancing it;everywhere there is Dualism, Equipoise; a perpetual Contradiction dwells in us: 'where shall I place myself to escape from my own shadow?' Consider it well, Metaphysics is the attempt of the mind to rise above the mind;to environ and shut in, or as we say, comprehend the mind. Hopeless struggle, for the wisest, as for the foolishest! What strength of sinew, or athletic skill, will enable the stoutest athlete to fold his own body in his arms, and, by lifting, lift up himself? The Irish Saint swam the Channel, 'carrying his head in his teeth';but the feat has never been imitated.
That this is the age of Metaphysics, in the proper, or sceptical Inquisitory sense; that there was a necessity for its being such an age, we regard as our indubitable misfortune. From many causes, the arena of free Activity has long been narrowing, that of sceptical Inquiry becoming more and more universal, more and more perplexing. The Thought conducts not to the Deed; but in boundless chaos, self-devouring, engenders monstrosities, phantasms, fire-breathing chimeras. Profitable Speculation were this: What is to be done;and How is it to be done? But with us not so much as the What can be got sight of. For some generations, all Philosophy has been a painful, captious, hostile question towards everything in the Heaven above, and in the Earth beneath: Why art thou there? Till at length it has come to pass that the worth and authenticity of all things seem dubitable or deniable: our best effort must be unproductively spent not in working, but in ascertaining our mere Whereabout, and so much as whether we are to work at all. Doubt, which, as was said, ever hangs in the background of our world, has now become our middleground and foreground; whereon, for the time, no fair Life-picture can be painted, but only the dark air-canvas itself flow round us, bewildering and benighting.
Nevertheless, doubt as we will, man is actually Here; not to ask questions, but to do work: in this time, as in all times, it must be the heaviest evil for him, if his faculty of Action lie dormant, and only that of sceptical Inquiry exert itself.
Accordingly whoever looks abroad upon the world, comparing the Past with the Present, may find that the practical condition of man in these days is one of the saddest; burdened with miseries which are in a considerable degree peculiar. In no time was man's life what he calls a happy one; in no time can it be so. A perpetual dream there has been of Paradises, and some luxurious Lubberland, where the brooks should run wine, and the trees bend with ready-baked viands; but it was a dream merely; an impossible dream.