it, will turn out to be what the sceptic says it is: assurance of eventual sensations. But as these sensations, in memory and expectation, are numerous and indefinitely variable, you are not able to hold them clearly before the mind; indeed, the realisation of all the potentialities which you vaguely feel to lie in the future is a task absolutely beyond imagination. Yet your present impressions, dependent as they are on your chance attitude and disposition and on a thousand trivial accidents, are far from representing adequately all that might be discovered or that is actually known about the object before you. This object, then, to your apprehension, is not identical with any of the sensations that reveal it, nor is it exhausted by all these sensations when they are added together; yet it contains nothing assignable but what they might conceivably reveal. As it lies in your fancy, then, this object, the reality, is a complex and elusive entity, the sum at once and the residuum of all particular impressions which, underlying the present one, have bequeathed to it their surviving linkage in discourse and consequently endowed it with a large part of its present character. With this hybrid object, sensuous in its materials and ideal in its locus, each particular glimpse is compared, and is recognised to be but a glimpse, an aspect which the object presents to a particular observer. Here are two identifications. In the first place various sensations and felt relations, which cannot be kept distinct in the mind, fall together into one term of discourse, represented by a sign, a word, or a more or less complete sensuous image. In the second place the new perception is referred to that ideal entity of which it is now called a manifestation and effect.
Such are the primary relations of reality and appearance. A reality is a term of discourse based on a psychic complex of memories, associations, and expectations, but constituted in its ideal independence by the assertive energy of thought. An appearance is a passing sensation, recognised as belonging to that group of which the object itself is the ideal representative, and accordingly regarded as a manifestation of that object.
Thus the notion of an independent and permanent world is an ideal term used to mark and as it were to justify the cohesion in space and the recurrence in time of recognisable groups of sensations. This coherence and recurrence force the intellect, if it would master experience at all or understand anything, to frame the idea of such a reality. If we wish to defend the use of such an idea and prove to ourselves its necessity, all we need do is to point to that coherence and recurrence in external phenomena. That brave effort and flight of intelligence which in the beginning raised man to the conception of reality, enabling him to discount and interpret appearance, will, if we retain our trust in reason, raise us continually anew to that same idea, by a no less spontaneous and victorious movement of thought.
CHAPTER IV—ON SOME CRITICS OF THIS DISCOVERY
Psychology as a solvent.
The English psychologists who first disintegrated the idea of substance, and whose traces we have in general followed in the above account, did not study the question wholly for its own sake or in the spirit of a science that aims at nothing but a historical analysis of mind. They had a more or less malicious purpose behind their psychology. They thought that if they could once show how metaphysical ideas are made they would discredit those ideas and banish them for ever from the world. If they retained confidence in any notion—as Hobbes in body, Locke in matter and in God, Berkeley in spirits, and Kant, the inheritor of this malicious psychology, in the thing-in-itself and in heaven—it was merely by inadvertence or want of courage. The principle of their reasoning, where they chose to apply it, was always this, that ideas whose materials could all be accounted for in consciousness and referred to sense or to the operations of mind were thereby exhausted and deprived of further validity. Only the unaccountable, or rather the uncriticised, could be true. Consequently the advance of psychology meant, in this school, the retreat of reason; for as one notion after another was clarified and reduced to its elements it was ipso facto deprived of its function.
So far were these philosophers from conceiving that validity and truth are ideal relations, accruing to ideas by virtue of dialectic and use, that while on the one hand they pointed out vital affinities and pragmatic sanctions in the mind's economy they confessed on the other that the outcome of their philosophy was sceptical; for no idea could be found in the mind which was not a phenomenon there, and no inference could be drawn from these phenomena not based on some inherent "tendency to feign." The analysis which was in truth legitimising and purifying knowledge seemed to them absolutely to blast it, and the closer they came to the bed-rock of experience the more incapable they felt of building up anything upon it. Self-knowledge meant, they fancied, self-detection; the representative value of thought decreased as thought grew in scope and elaboration. It became impossible to be at once quite serious and quite intelligent; for to use reason was to indulge in subjective fiction, while conscientiously to abstain from using it was to sink back upon inarticulate and brutish instinct.
In Hume this sophistication was frankly avowed. Philosophy discredited itself; but a man of parts, who loved intellectual games even better than backgammon, might take a hand with the wits and historians of his day, until the clock struck twelve and the party was over. Even in Kant, though the mood was more cramped and earnest, the mystical sophistication was quite the same. Kant, too, imagined that the bottom had been knocked out of the world; that in comparison with some unutterable sort of truth empirical truth was falsehood, and that validity for all possible experience was weak validity, in comparison with validity of some other and unmentionable sort. Since space and time could not repel the accusation of being the necessary forms of perception, space and time were not to be much thought of; and when the sad truth was disclosed that causality and the categories were instruments by which the idea of nature had to be constructed, if such an idea was to exist at all, then nature and causality shrivelled up and were dishonoured together; so that, the soul's occupation being gone, she must needs appeal to some mysterious oracle, some abstract and irrelevant omen within the breast, and muster up all the stern courage of an accepted despair to carry her through this world of mathematical illusion into some green and infantile paradise beyond.
Misconceived rôle of intelligence.
What idea, we may well ask ourselves, did these modern philosophers entertain regarding the pretensions of ancient and mediæval metaphysics? What understanding had they of the spirit in which the natural organs of reason had been exercised and developed in those schools? Frankly, very little; for they accepted from ancient philosophy and from common-sense the distinction between reality and appearance, but they forgot the function of that distinction and dislocated its meaning, which was nothing but to translate the chaos of perception into the regular play of stable natures and objects congenial to discursive thought and valid in the art of living. Philosophy had been the natural science of perception raised to the reflective plane, the objects maintaining themselves on this higher plane being styled realities, and those still floundering below it being called appearances or mere ideas. The function of envisaging reality, ever since Parmenides and Heraclitus, had been universally attributed to the intellect. When the moderns, therefore, proved anew that it was the mind that framed that idea, and that what we call reality, substance, nature, or God, can be reached only by an operation of reason, they made no very novel or damaging discovery.
Of course, it is possible to disregard the suggestions of reason in any particular case and it is quite possible to believe, for instance, that the hypothesis of an external material world is an erroneous one. But that this hypothesis is erroneous does not follow from the fact that it is a hypothesis. To discard it on that ground would be to discard all reasoned knowledge and to deny altogether the validity of thought. If intelligence is assumed to be an organ of cognition and a vehicle for truth, a given hypothesis about the causes of perception can only be discarded when a better hypothesis on the same subject has been supplied. To be better such a hypothesis would have to meet the multiplicity of phenomena and their mutations with a more intelligible scheme of comprehension and a more useful instrument of control.
All criticism dogmatic.
Scepticism is always possible while it is partial. It will remain the privilege and resource of a free mind that has elasticity enough to disintegrate its