Page:Blackwood's Magazine volume 062.djvu/259

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1847.]
Reid and the Philosophy of Common Sense.
253

that the attempt to re-establish it ought never, on any account, to be renewed.


We have dwelt so long on the exposition of the psychological or analytic solution of the problem of perception, that we have but little space to spare for the discussion of the metaphysical doctrine. We shall unfold it as briefly as we can.

The principle of the metaphysical doctrine is precisely the opposite of the principle of the psychological doctrine. The one attempts all analysis; the other forbears from all analysis of the given fact—the perception of matter. And why does metaphysic make no attempt to dissect this fact? Simply because the thing cannot be done. The fact yields not to the solvent of thought: it yields not to the solvent of observation: it yields not to the solvent of belief, for man has no belief in the existence of matter from which perception (present and remembered) has been withdrawn. An impotence of the mind does indeed apparently resolve the supposed synthesis: but essential thinking exposes the imposition, restores the divided elements to their pristine integrity, and extinguishes the theory which would explain the datum by means of the concurrence of a subjective or mental, and an objective or material factor. The convicted weakness of psychology is thus the root which gives strength to metaphysic. The failure of psychology affords to metaphysic a foundation of adamant. And perhaps no better or more comprehensive description of the object of metaphysical or speculative philosophy could be given than this,—that it is a science which exists, and has at all times existed, chiefly for the purpose of exposing the vanity and confounding the pretensions of what is called the "science of the human mind." The turning-round of thought from psychology to metaphysic is the true interpretation of the Platonic conversion of the soul from ignorance to knowledge—from mere opinion to certainty and satisfaction: in other words, from a discipline in which the thinking is only apparent, to a discipline in which the thinking is real. Ordinary observation does not reveal to us the real, but only the apparent revolutions of the celestial orbs. We must call astronomy to our aid if we would reach the truth. In the same way, ordinary or psychological thinking may show us the apparent movements of thought—but it is powerless to decipher the real figures described in that mightier than planetary scheme. Metaphysic alone can teach us to read aright the intellectual skies. Psychology regards the universe of thought from the Ptolemaic point of view, making man, as this system made the earth, the centre of the whole: metaphysic regards it from the Copernican point of view, making God, as this scheme makes the sun, the regulating principle of all. The difference is as great between "the science of the human mind" and metaphysic, as it is between the Ptolemaic and the Copernican astronomy, and it is very much of the same kind.

But the opposition between psychology and metaphysic, which we would at present confine ourselves to the consideration of, is this:—the psychological blindness consists in supposing that the analysis so often referred to is practicable, and has been made out: the metaphysical insight consists in seeing that the analysis is null and impracticable. The superiority of metaphysic, then, does not consist in doing, or in attempting more than psychology. It consists in seeing that psychology proposes to execute, the impossible, (a thing which psychology does not herself see, but persists in attempting;) and it consists, moreover, in refraining from this audacious attempt, and in adopting a humbler, a less adventurous, and a more circumspect method. Metaphysic (viewed in its ideal character) aims at nothing but what it can fully overtake. It is quite a mistake to imagine that this science proposes to carry a man beyond the length of his tether. The psychologist, indeed, launches the mind into imaginary spheres; but metaphysic binds it down to the fact, and there sternly bids it to abide. That is the profession of the metaphysican, considered in his beau-ideal. That, too, is the practice (making allowance for the infirmities incident to humanity,