Heat, Light, Sound, Force, are names of classes of phenomena, and the

great discovery of Physics during the nineteenth century has been that

these are all transformable into each other, and bear definite numerical

relations to each other in proportion to which such transformations take

place. Science availing itself of this discovery, unifies its conception

of Nature and gives expression to the doctrine of the

inter-transmutability of the various classes of physical phenomena by

postulating an entity called Energy, and regarding the various classes

of phenomena as transmutations which this entity undergoes. But Science

has been reluctant to recognise that it is now entitled to dispense with

the postulation of Matter. The theory, as announced by the leading men

of science, has therefore been to the effect that there exist in the

physical universe _two_ real things--Matter and Energy--in place of one

only, as commonly supposed for so long.

Now we maintain, on the contrary, that such a statement of physical

theory is erroneous and redundant; that Science is not obliged to

postulate _two_ such entities; that the concept of Energy supplies all

her requirements; and that the employment of that conception obviates

the very serious contradictions which are involved in any assumption of

a real entity of the nature of Matter as ordinarily understood--a

conception of which the very description involves difficulties which

have perplexed thinking men for more than two centuries.

Our argument on this point involves consideration of the place occupied

by Energy in a potential form.

Whilst the transformability of Heat, Light, Sound, and other physical

phenomena in definite numerical ratios has led to their being all

regarded as actual manifestations of transmutations proceeding in one

real thing, occasionally there is a seeming break in the catena; no

phenomenon can be detected into which the heat or light or other

immediately preceding manifestation has been transformed; but, later on,

the co-relative reappears, and by an argument as strong as that which

asserts the continuous identity of an intelligence before, during, and

after a temporary suspension of consciousness, the student of Physics

maintains the continued existence _in posse_, if not _in esse_, of the

Energy which by appropriate action he can again reveal in an active or

kinetic manifestation. Hence arises the conception of potential Energy.

The Energy to which we attribute the force of cohesion which any

particular body can on occasion manifest, we believe to exist

potentially whilst that body continues unacted upon. Our belief is

confirmed by our experience of the certainty with which, on the

recurrence of the given conditions, the force always again manifests

itself. In like manner the potential Energy to which we attribute the

Force of Gravitation we believe to exist at all times, even when not

kinetically active. Indeed, it only manifests itself when a

transmutation is taking place into some other form of Energy. Now it is

the universal association of these two forms of potential Energy with

the common and fundamental data of our sense-experience that has

suggested the construction in our minds of the conception of Matter, and

furnished us with the ideas of solidity, impenetrability, and weight

which constitute its groundwork.

Our view, therefore, is that the concept of materiality can, in the way

just indicated, be in all cases analysed into, and derived from, the

conception of Energy; and that Science, if consistent, cannot postulate

the reality of Matter as well. Potential Energy adequately supplies the

demand for a real substratum of which phenomena are the manifestation.

The whole question is very well worth the attention, not only of

scientific students but of metaphysicians. The inquiry will distinctly

gain if it receive the auxiliary attention of those who have studied the

process by which we form our mental conceptions, and whilst the students

of Physics deserve the honours of discovery, they cannot safely dispense

with such assistance, for which the present confused and inconsistent

state of the fundamental definitions of Physical Science most urgently

calls. There is here a neglected but very interesting field for the

metaphysician's efforts.

Recent scientific writings contain enough to show us that men of science

are already beginning to recognise not only the inconsistency of the

theory of two real things, but the dominating significance of the

conception of Energy, and are gradually coming to claim for the

conception of Matter little more than recognition as the vehicle of

energetic transmutation. Let us then for the moment accept the position

that Science--ridding itself of redundant theory--postulates Energy as

the real thing-in-itself, in terms of which it frames its statement of

physical phenomena, and let us examine briefly the effects which the

acceptance of this new postulate is likely to have on philosophic

speculation.

All my Presentment, all the content of my sense-experience, according to

this theory, I attribute to a multifarious continuous series of

transmutations constantly proceeding in some portion of the system of

Energy which constitutes the real substratum of phenomena. I study,

measure, and classify the different species of these transmutations; I

associate particular sensations and classes of sensations with

particular transmutations, and I thence infer the existence _in posse_

or _in esse_ of more or less Energy in some particular form transmuting

itself according to some one or other definite physical law. I infer

also the existence of various supplies of potential Energy constantly

available, and of other intelligent agents like myself.

I associate every such intelligent agent with a particular series or

group of sense-experiences, and further I assume that the world at his

Presentment, consists for him in a similar series of transmutations

continuously going on in that portion of the energetic system which I

believe in a similar way to constitute such person's bodily organism.

Thus by the same process of reasoning by which I am led to believe that

my own Presentment consists in the energetic transmutations proceeding

in my organism, I explain the universality of the experience of all

intelligent agents. In my own case, by that union of consciousness with

physical energy which accompanies the manifestation of life, I am

immediately related with that portion of the energetic system which is

the real substratum of my organism, and am made conscious of the series

of transmutations occurring at that particular point in it which is

represented by my sensory system. In the case of others, from certain of

the transmutations occurring in my Presentment, I am led to infer the

existence of other similar microcosmic systems in the energetic

macrocosm of the physical universe.

This is all very well as a theory, but if all I know is the series of

transmutations occurring in the portion of the system of Energy related

directly to my intelligence, how did I ever learn to infer from these

transmutations the existence of that Energy underlying them, and still

more of the whole energetic system extending far beyond my organism? How

do I deduce from transmutations proceeding in the portion of the

energetic system which constitutes the real substratum of my organism

the existence, not only of that substratum itself, but of other portions

of the system similarly related to other intelligences, and of the

energetic system as a whole? How do I get beyond my Presentment? How

pass from Ideality to Existence?

I answer that I never could by any chance or possibility have got beyond

it or got any suggestion of the Reality had I been merely related to my

Presentment as a passive and percipient subject. In point of fact,

however, I am in relation with the energetic system not merely or

primarily as an Intelligence percipient of the transmutations proceeding

in it at a particular point, but also as a Will initiative to some

extent of such transmutations and capable of influencing and directing

the physical process. Life necessarily involves a process of energetic

transmutation constantly proceeding at that portion of the system of

Energy which constitutes my organism, and I am there related as Will

with a larger system which embraces the part in which intelligence is

developed.

Fundamentally, life manifests itself in all grades of the zoologic

hierarchy as a union of Volition (or what appears in action as Volition)

with some particular point in the universe of physical Energy, the union

constituting what we call a living organism.

Despite its profound importance to us personally and to our race, we

should not forget that, objectively considered, the brain in man and the

higher animals is merely a special organ highly developed by use, as

the trunk is in the elephant, the middle phalanx in the horse, or wings

in the bird. Intelligence is hardly to any extent a necessity of the

vital union of the Will with the energetic system. It is not at all

developed in the vegetal kingdom, hardly at all in some branches of the

animal, and there may conceivably be an infinite number of other

"kingdoms" in which it may be either undeveloped, or very differently

developed, or superseded by some other manifestation by us unimaginable.

Its development indeed seems to be concurrent with the development of a

locomotive faculty--a striking confirmation of the theory that it is in

our activity that we derive the suggestions which call forth the

exercise of the Understanding and transform sensation into perception.

It is only with a comparative fraction of the organism that I am related

as a passively percipient intelligence. I am directly or indirectly

related as Will, as an originative cause of activity, with a larger

portion of my organism, many parts of which are quite distinct from the

cognitive portion. Now it is from my relation as Will with Energy other

than and beyond the energetic transmutations which constitute my

Presentment that I discover the energetic system of Nature, as a real

thing--beyond, underlying, and by its transmutations constitutive of my

Presentment. Many of the transmutations which occur in my Presentment I

recognise as attributable to my own volitional activity operating upon

my energetic organism, and _in my own activity there is thus suggested

to me a source of phenomena lying beyond these phenomena themselves_. A

transmutation initiated in my brain is a pure idea. The key which

suggests to me the real world is the occurrence of transmutations

ascribable to my activity operating beyond the sphere which constitutes

my Presentment.

It is in this way that I originally discover the real energetic

substratum to the phenomenal world of my Presentment. I learn from the

transmutations to infer the agency and operation of the underlying

energy, and thus gradually construct my whole systematic conception of

the real world in which I live and move and have my being.

This view of my activity and of the consequences of my relation as Will

to the energetic system represented by my organism, including the

portion thereof related to my intelligence, supplies us therefore with a

key to the inevitable reference of thoughts to things.

I distinguish in my active experience a clear difference between wishing

and willing, and further between willing and effective action. My

Power--the Energy related to my Will--the exertion of which is

necessary to translate Volition into an overt result--is a limited and

quantifiable thing, but that such a hidden energetic medium or

substratum underlies all phenomena is evident from the fact that I do

not will directly the appearance of any given phenomenon. I may wish

that. But when the Volition is reached and the wish transformed into

overt exertion I find myself involved in the multifarious processes of

an energetic system which I may so far influence, but which is

nevertheless in many ways constantly going on irrespective of my

Volition. I may wish to avoid pain and may will certain exertions with

that view, but the consequences may be the reverse of what I wished.

This shows that the Volition operates immediately not on the sensation

but on the energetic system.

In all cases between Volition and overt result there seems to be erected

and constantly maintained around me a vast energetic system, a part but

only a small part of which, namely the Energy of my organism, can be

influenced directly by my Will, whilst, even in immediate relation with

that part, transmutations beyond the reach of my Will are constantly

going on. Indeed, what fundamentally distinguishes Volition from Desire

is its relation to the energetic system.

The doctrine of Energy therefore puts in a new and clearer light the

whole theory of Causation.

It is common for philosophers to talk of invariable sequence as the

criterion of Causality. But, in fact, that is quite fallacious. No one

ever regards a phenomenon as the cause of another phenomenon. We ascribe

Causality to the energetic transmutation which in some form or other we

inevitably believe to accompany the appearance of every phenomenon. We

never postulate a causal relation between day and night--the most

notable case of invariable sequence. When we say the fire warms the

room, or the horse draws the cart, or the sun ripens the corn, it is the

Energy which we rightly or wrongly associate with the visual sensation

referred to in the words "fire" and "horse" and "sun" of which we are

thinking, and by no means of these visual sensations themselves. As has

been well said, we never suppose that the leading carriage of the train

draws those behind it, although their relation of sequence is quite as

close to it as to the engine.

True, it is and must be from and by phenomena only that I infer and

measure the transmutations of Energy, but the transmutations measured

are operations of the real thing-in-itself postulated by Science. The

existence of such Energy is suggested to me primarily in my experience

of my own activity in which I recognise my power of doing work--a

quantifiable and measurable thing, homogeneous with the Energy in

respect of which Science states the relations and conditions of all

physical phenomena. My most incessant mental act is that by which, on

the analogy of my own active experience, I refer all phenomena to the

underlying energetic system. This reference it is which transforms

sensation into perception; and the constant affirmation of this

reference is the great function of the synthetic mental activity of the

understanding, and is at once the origin and explanation of that

imperative mental tendency which metaphysicians call the law of

Causality.

How, then, does this doctrine affect the theory of the nature of Space?

If it be true that the world as my Presentment consists in the

transmutations occurring in that particular part of the energetic system

which constitutes the real substratum of the brain, then phenomena as a

whole must arise in transmutation, in a process of Becoming rather than

in a state of Being, and Space must be the content, the condition, in

which that process proceeds. The laws of Space, therefore, are laws, so

to speak, of motion, not of position. The most absolutely still and

motionless visual presentation is really a series of constant

transmutations of Energy and the form of Space is constituted by the

laws of transmutation, which are thus at once the necessary conditions

of my perception and the universal conditions of all sense-perception.

Space, therefore, does not contain the real thing which sustains the

phenomenal world any more than it does the reality which underlies my

conscious self. It is the universal condition of the transmutations

which constitute phenomena; and it therefore "contains" all these

phenomena, including my body as phenomenon and only as phenomenon. Its

form is discovered by my organic motor activity, and in representing

this activity the mind constructs its concepts of Space and Extension.

This view of the nature of Space, by relating its forms and laws with

the objective, and a-logical thing-in-itself in virtue of the

transmutations of which our sense-experience occurs, relieves an obvious

difficulty which must always have been felt in accepting without

qualification the purely Kantian view which regarded it as a category

imposed by the Intelligence upon the otherwise unknowable world of

sense.

The most ardent assertors of the ideality of Space have hitherto

apparently had difficulty in avoiding the tendency to conceive it as the

persistent all-embracing objective content of the thing-in-itself, not

merely of the phenomenon, although the latter only might enter into

Knowledge. The doctrine, however, which presents our conception of Space

as discovered in our activity amid resistant transmutation-processes not

only establishes its ideality but at the same time explains the relation

which its form nevertheless bears to the objective material laws of the

sensible presentation. It liberates the mind from the oppressive

necessity of regarding Space as still somehow objectively extending and

containing the real world. It also relieves an obvious difficulty which

confronts the Philosophy of Schopenhauer in locating those

transcendental forms of the phenomenon which are imposed _a priori_ upon

the presentation, and yet are not to be found in the pure Volition.

Of course, it must never be forgotten that my whole sentient experience

consists primarily of the series of energetic transmutations occurring

at that part of the energetic system which is in immediate vital

relation with my consciousness. It is my experience of active exertion,

of moving, speaking, etc., which gives a suggestion of the real

energetic world. The transmutations of the real Energy of the world

beyond my organism never enter my Consciousness. Transmutations arising

beyond my body only enter the presentation by influencing the cerebral

process. The luminous undulation and the sound-wave must both produce

transmutation of the cerebral Energy in order to affect Consciousness.

Yet the various characters of the transmitted impulses are

distinguishable in the resultant cerebral transmutations. Thus I feel

sensations of hardness, roughness, pain, colour, sound, etc. It is by a

process of mental construction that I associate these with the forms of

my exertional activity, and thus frame my conceptions of real bodies in

the world around me--those which I more directly associate with the

Energy subject to my Volition being conceived as representing my body.

For reasons of convenience, I refer those conceptions chiefly to the

co-ordinated visual presentation, and thus build up my conception of the

extended world of material things. Science is possible because all

transmutations of Energy take place according to definite numerical laws

and ratios. The whole work of Science is to explain every phenomenon in

terms of its definite transmutation of Energy. These definite numerical

laws and processes are characteristic of all Energy transmutation, and

thus regulate the experience of every intelligent being. It is in virtue

of these that our separate systems of knowledge correspond, and that we

are thus presented each with corresponding aspects of one outer world.

The laws which regulate the cerebral changes that accompany

sense-presentation are for me the necessary _a priori_ laws of

perception. It is because these laws operate in common in all brains

that community of intercourse is possible amongst mankind. It is because

of the further fact that the whole of the transmutations of Energy which

constitute physical phenomena compose a numerically inter-related and

regulated system that Science and rational knowledge are possible to the

intellect of man. Our knowledge is what we are obliged to think and

assert regarding experience; but the universality of experience is not

explained merely by the common nature and general laws of Intelligence,

but depends also on the generality of the laws under which the

transmutations of Energy proceed.

We are now, therefore, by the aid of the doctrine of Energy, better able

than before to distinguish accurately between the Ideal and the Real as

contrasted elements in our experience.

My Presentment as a whole consists in the transmutation-processes--in

the sensations, feelings, perceptions, images, ideas--in short, in all

that is going on at the point where (I necessarily express myself in

terms of spatial relations, though in this connection these are

figurative) my sentience and intelligence are developed.

My whole Presentment is, therefore, in one sense subjective, or, as some

would say, ideal. For me, my Presentment is the impression produced on,

the condition established in, my Consciousness in virtue of what is

going on at this so-called point of contact.

What we mean, therefore, by the subjectivity or ideality of the

Presentment is the aspect of energetic transmutations when viewed as

affecting my Consciousness in contrast with their obverse aspect when

viewed as transmutations in the objective system. As my Presentment,

they are all subjective or ideal, and it is in this reference that

Berkeley and Hume, for instance, speak of ideas of sense, such as the

colour blue, the heat of the fire, the pain of a blow. These,

constituting the bulk of the Presentment, they distinguish from what

Berkeley called ideas of the imagination--those stimulated or

originated, or, as he said, "excited," by the intelligence itself.

Whilst he contended that both classes are ideal or subjective, in

respect that they are constituents of the Presentment, the latter have

an additional title to subjectivity in respect of their origin, and

constitute what are called "ideas" when the word is used in

contra-distinction to "sensations"--such pure ideas occurring in

response to a subjective impulse.

On the other hand, there is a sense in which the Presentment is, if not

real, at least actual and objective.

So far as we know, Intelligence never develops except in conjunction

with an organism--that is, in vital relation with physical Energy. My

Presentment is constituted by the occurrence and depends upon the

continuance of the transmutations or operations proceeding at the

related point in the energetic system. Even pure ideas, though

subjective not only in regard to aspect but in regard to their origin,

are objective in respect that they also consist in an energetic

transmutation.

Herein lies the germ of truth to be discovered even in the unintelligent

dogmatism of those philosophers who assert the absolute Reality of my

Presentment, as such--not merely its actuality. It is comparatively

seldom, however, either in Science or Philosophy, that we meet a thinker

prepared to go as far as that. Most take refuge in a distinction between

primary and secondary qualities of bodies, classing my sensations as

non-resembling secondary qualities, which they admit cannot be conceived

to exist without the mind in the form in which they make up my

Presentment, but reserving five or six primary qualities--solidity,

extension, figure, motion, rest--which they conceive to exist

independently, just as they enter into my Presentment. In point of fact,

however, these so-called primary qualities are not the names of

intuitions, but are abstractions or generalisations of the most general

and necessary elements of my active Experience by reference to which I

mentally construct my world. The transmutations of Energy are not a

never-repeated accidental kaleidoscope. They proceed according to

constant, definite, measurable laws, and though subordinate variations

are infinite and make up the details of my Presentment, the general laws

and conditions according to which all Energy transmutes are definite,

and constitute the general features or qualities of my Experience, and

these are the so-called primary qualities of bodies regarded in the

light of the doctrine of Energy.

The primary quality of extension, in particular, is a conception

resulting from the association of my visual Presentment with my power of

active exertion, and the delusive tendency to regard this quality as in

some sense primarily and fundamentally real is due to the unconscious

recognition of the fact that it is in virtue of my power, or association

as an agent with the energetic system, that I derive a suggestion of the

real world beyond the phenomena which constitute my experience.

Essays Towards a Theory of Knowledge · 第 4 / 6 段