Allusion has already been made to the question of the boundaries between logic and psychology, between logic and ethics, ethics and psychology, and psychology and epistemology. Each of these occasionally comes to cover ground that seems more appropriate to the others. Logic is sometimes restricted to denote the study of the conditions of derivative knowledge, of the canons of inference and the modes of proof. If taken more widely as the science of thought-form, it is supposed to imply a world of fixed or stereotyped relations between ideas, a system of stable thoughts governed by inflexible laws in an absolute order of immemorial or eternal truth. As against such fixity, psychology is supposed to deal with these same ideas as products—as growing out of a living process of thought—having a history behind them and perhaps a prospect of further change. The genesis so given may be either a mere chronicle-history, or it may be a philosophical development. In the former case, it would note the occasions of incident and circumstance, the reactions of mind and environment, under which the ideas were formed. Such [pg xcv] a psychological genesis of several ideas is found in the Second Book of Locke's Essay. In the latter case, the account would be more concerned with the inner movement, the action and reaction in ideas themselves, considered not as due to casual occurrences, but as self-developing by an organic growth. But in either case, ideas would be shown not to be ready-made and independently existing kinds in a world of idea-things, and not to form an unchanging diagram or framework, but to be a growth, to have a history, and a development. Psychology in this sense would be a dynamical, as opposed to the supposed statical, treatment of ideas and concepts in logic. But it may be doubted how far it is well to call this psychology: unless psychology deals with the contents of the mental life, in their meaning and purpose, instead of, as seems proper, merely in their character of psychic events. Such psychology is rather an evolutionist logic,—a dialectic process more than an analytic of a datum.
In the same way, ethics may be brought into one kind of contact with psychology. Ethics, like logic, may be supposed to presuppose and to deal with a certain inflexible scheme of requirements, a world of moral order governed by invariable or universal law; an eternal kingdom of right, existing independently of human wills, but to be learned and followed out in uncompromising obedience. As against this supposed absolute order, psychology may be said to show the genesis of the idea of obligation and duty, the growth of the authority of conscience, the formation of ideals, the relativity of moral ideas. Here also it may reach this conclusion, by a more external or a more internal mode of argument. It may try to show, in other words, that circumstances give rise to these forms of estimating conduct, or it may argue that they are a necessary [pg xcvi] development in the human being, constituted as he is. It may again be doubted whether this is properly called psychology. Yet its purport seems ultimately to be that the objective order is misconceived when it is regarded as an external or quasi-physical order: as a law written up and sanctioned with an external authority—as, in Kant's words, a heteronomy. If that order is objective, it is so because it is also in a sense subjective: if it is above the mere individuality of the individual, it is still in a way identical with his true or universal self-hood. Thus “psychological” here means the recognition that the logical and the moral law is an autonomy: that it is not given, but though necessary, necessary by the inward movement of the mind. The metaphor of law is, in brief, misleading. For, according to a common, though probably an erroneous, analysis of that term, the essence of a law in the political sphere is to be a species of command. And that is rather a one-sidedly practical or aesthetic way of looking at it. The essence of law in general, and the precondition of every law in special, is rather uniformity and universality, self-consistency and absence of contradiction: or, in other words, rationality. Its essential opposite—or its contradiction in essence—is a privilege, an attempt at isolating a case from others. It need not indeed always require bare uniformity—require i.e. the same act to be done by different people: but it must always require that every thing within its operation shall be treated on principles of utter and thorough harmony and consistency. It requires each thing to be treated on public principles and with publicity: nothing apart and mere singular, as a mere incident or as a world by itself. Differently it may be treated, but always on grounds of common well-being, as part of an embracing system.
There is probably another sense, however, in which [pg xcvii] psychology comes into close relation with ethics. If we look on man as a microcosm, his inner system will more or less reproduce the system of the larger world. The older psychology used to distinguish an upper or superior order of faculties from a lower or inferior. Thus in the intellectual sphere, the intellect, judgment, and reason were set above the senses, imagination, and memory. Among the active powers, reasonable will, practical reason and conscience were ranked as paramount over the appetites and desires and emotions. And this use of the word “faculty” is as old as Plato, who regards science as a superior faculty to opinion or imagination. But this application—which seems a perfectly legitimate one—does not, in the first instance, belong to psychology at all. No doubt it is psychically presented: but it has an other source. It springs from an appreciation, a judgment of the comparative truth or reality of what the so-called psychical act means or expresses. Such faculties are powers in a hierarchy of means and ends and presuppose a normative or critical function which has classified reality. Psychically, the elements which enter into knowledge are not other than those which belong to opinion: but they are nearer an adequate rendering of reality, they are truer, or nearer the Idea. And in the main we may say, that is truer or more real which succeeds in more completely organising and unifying elements—which rises more and more above the selfish or isolated part into the thorough unity of all parts.
The superior faculty is therefore the more thorough organisation of that which is elsewhere less harmoniously systematised. Opinion is fragmentary and partial: it begins abruptly and casually from the unknown, and runs off no less abruptly into the unknown. Knowledge, on the contrary, is unified: and its unity gives it its [pg xcviii] strength and superiority. The powers which thus exist are the subjective counterparts of objectively valuable products. Thus, reason is the subjective counterpart of a world in which all the constituents are harmonised and fall into due relationship. It is a product or result, which is not psychologically, but logically or morally important. It is a faculty, because it means that actually its possessor has ordered and systematised his life or his ideas of things. Psychologically, it, like unreason, is a compound of elements: but in the case of reason the composition is unendingly and infinitely consistent; it is knowledge completely unified. The distinction then is not in the strictest sense psychological: for it has an aesthetic or normative character; it is logical or ethical: it denotes that the idea or the act is an approach to truth or goodness. And so, when Butler or Plato distinguishes reason or reflection from appetites and affections, and even from self-love or from the heart which loves and hates, this is not exactly a psychological division in the narrower sense. That is to say: these are, in Plato's words, not merely “parts,” but quite as much “kinds” and “forms” of soul. They denote degrees in that harmonisation of mind and soul which reproduces the permanent and complete truth of things. For example, self-love, as Butler describes it, has but a partial and narrowed view of the worth of acts: it is engrossing and self-involved: it cannot take in the full dependence of the narrower interest on the larger and eternal self. So, in Plato, the man of heart is but a nature which by fits and starts, or with steady but limited vision, realises the larger life. These parts or kinds are not separate and co-existent faculties: but grades in the co-ordination and unification of the same one human nature.
(i.) Psychology and Epistemology.
Psychology however in the strict sense is extremely difficult to define. Those who describe it as the “science of mind,” the “phenomenology of consciousness,” seem to give it a wider scope than they really mean. The psychologist of the straiter sect tends, on the other hand, to carry us beyond mind and consciousness altogether. His, it has been said, is a psychology without a Psyché. For him Mind, Soul, and Consciousness are only current and convenient names to designate the field, the ground on which the phenomena he observes are supposed to transact themselves. But they must not on any account interfere with the operations; any more than Nature in general may interfere with strictly physical inquiries, or Life and vital force with the theories of biology. The so-called Mind is only to be regarded as a stage on which certain events represent themselves. In this field, or on this stage, there are certain relatively ultimate elements, variously called ideas, presentations, feelings, or states of consciousness. But these elements, though called ideas, must not be supposed more than mechanical or dynamical elements; consciousness is rather their product, a product which presupposes certain operations and relations between them. If we are to be strictly scientific, we must, it is urged, treat the factors of consciousness as not themselves conscious: we must regard them as quasi-objective, or in abstraction from the consciousness which surveys them. The Ego must sink into a mere receptacle or arena of psychic event; its independent meaning or purport is to be ignored, as beside the question.
When this line is once fixed upon, it seems inevitable to go farther. Comte was inclined to treat psychology [pg c] as falling between two stools: it must, he thought, draw all its content either from physiology on the one hand, or from social factors on the other. The dominant or experimental psychology of the present day seems inclined, without however formulating any very definite statement, to pronounce for the former alternative. It does not indeed adopt the materialistic view that mind is only a function of matter. Its standpoint rather is that the psychical presents itself even to unskilled observation as dependent on (i.e. not independent of) or as concomitant with certain physical or corporeal facts. It adds that the more accurately trained the observer becomes, the more he comes to discover a corporeal aspect even where originally he had not surmised its existence, and to conclude that the two cycles of psychical and physical event never interfere with each other: that soul does not intervene in bodily process, nor body take up and carry on psychical. If it is said that the will moves the limbs, he replies that the will which moves is really certain formerly unnoticed movements of nerve and muscle which are felt or interpreted as a discharge of power. If the ocular impression is said to cause an impression on the mind, he replies that any fact hidden under that phrase refers to a change in the molecules of the brain. He will therefore conclude that for the study of psychical phenomena the physical basis, as it may be called, is all important. Only so can observation really deal with fact capable of description and measurement. Thus psychology, it may be said, tends to become a department of physiology. From another standpoint, biology may be said to receive its completion in psychology. How much either phrase means, however, will depend on the estimate we form of biology. If biology is only the study of mechanical and chemical phenomena on the peculiar field known as [pg ci] an organism, and if that organism is only treated as an environment which may be ignored, then psychology, put on the same level, is not the full science of mind, any more than the other is the full study of life. They both have narrowed their subject to suit the abstract scheme of the laboratory, where the victim of experiment is either altered by mutilation and artificial restrictions, or is dead. If, on the contrary, biology has a substantial unity of its own to which mechanical and chemical considerations are subordinate and instrumental, psychology may even take part with physiology without losing its essential rank. But in that case, we must, as Spinoza said[47], think less mechanically of the animal frame, and recognise (after the example of Schelling) something truly inward (i.e. not merely locally inside the skin) as the supreme phase or characteristic of life. We must, in short, recognise sensibility as the culmination of the physiological and the beginning of the psychological.
To the strictly scientific psychologist, as has been noted—or to the psychology which imitates optical and electrical science—ideas are only psychical events: they are not ideas of anything, relative, i.e. to something else; they have no meaning, and no reference to a reality beyond themselves. They are presentations;—not representations of something outside consciousness. They are appearances: but not appearances of something: they do not reveal anything beyond themselves. They are, we may almost say, a unique kind of physical phenomena. If we say they are presentations of something, we only mean that in the presented something, in the felt something, the wished something, we separate the quality or form or aspect of presentativeness, of [pg cii] feltness, of wishedness, and consider this aspect by itself. There are grades, relations, complications, of such presentations or in such presentedness: and with the description and explanation of these, psychology is concerned. They are fainter or stronger, more or less correlated and antithetical. Presentation (or ideation), in short, is the name of a train of event, which has its peculiarities, its laws, its systems, its history.
All reality, it may be said, subsists in such presentation; it is for a consciousness, or in a consciousness. All esse, in its widest sense, is percipi. And yet, it seems but the commonest of experiences to say that all that is presented is not reality. It is, it has a sort of being,—is somehow presumed to exist: but it is not reality. And this reference and antithesis to what is presented is implied in all such terms as “ideas,” “feelings,” “states of consciousness”: they are distinguished from and related to objects of sense or external facts, to something, as it is called, outside consciousness. Thoughts and ideas are set against things and realities. In their primitive stage both the child and the savage seem to recognise no such difference. What they imagine is, as we might say, on the same plane with what they touch and feel. They do not, as we reproachfully remark, recognise the difference between fact and fiction. All of us indeed are liable to lapses into the same condition. A strong passion, a keen hope or fear, as we say, invests its objects with reality: even a sanguine moment presents as fact what calmer reflection disallows as fancy. With natural and sane intelligences, however, the recrudescence of barbarous imagination is soon dispelled, and the difference between hallucinations and realities is established. With the utterly wrecked in mind, the reality of hallucinations becomes a permanent or habitual state. With the child and the untrained it [pg ciii] is a recurrent and a disturbing influence: and it need hardly be added that the circle of these decepti deceptores—people with the “lie in the Soul”—is a large one. There thus emerges a distinction of vast importance, that of truth and falsehood, of reality and unreality, or between representation and reality. There arise two worlds, the world of ideas, and the world of reality which it is supposed to represent, and, in many cases, to represent badly.
With this distinction we are brought across the problem sometimes called Epistemological. Strictly speaking, it is really part of a larger problem: the problem of what—if Greek compounds must be used—may be styled Aletheiology—the theory of truth and reality: what Hegel called Logic, and what many others have called Metaphysics. As it is ordinarily taken up, “ideas” are believed to be something in us which is representative or symbolical of something truly real outside us. This inward something is said to be the first and immediate object of knowledge[48], and gives us—in a mysterious way we need not here discuss—the mediate knowledge of the reality, which is sometimes said to cause it. Ideas in the Mind, or in the Subject, or in us, bear witness to something outside the mind,—trans-subjective—beyond us. The Mind, Subject, or Ego, in this parallelism is evidently in some way identified with our corporeal organism: perhaps even located, and provided with a “seat,” in some defined space of that [pg civ] organism. It is, however, the starting-point of the whole distinction that ideas do not, no less than they do, conform or correspond to this supra-conscious or extra-conscious world of real things. Truth or falsehood arises, according to these assumptions, according as psychical image or idea corresponds or not to physical fact. But how, unless by some miraculous second-sight, where the supreme consciousness, directly contemplating by intuition the true and independent reality, turns to compare with this immediate vision the results of the mediate processes conducted along the organs of sense,—how this agreement or disagreement of copy and original, of idea and reality, can be detected, it is impossible to say.