I shall proceed, therefore, in the first place, to the phenomena of

_simple suggestion_, which are usually referred to a principle of

association in our ideas.

FOOTNOTES:

[135] Traite des Sensations, Part I. Chap. vii. Sect. 2.

[136] Ovid. Metamorph. Lib. XV. v. 234-6, and 252-8.

[137] Mart. Scrib. c. xii.

LECTURE XXXIV.

CLASSIFICATION OF THE INTERNAL AFFECTIONS OF MIND, CONTINUED,--ON

SIMPLE SUGGESTION,--ADVANTAGES RESULTING FROM THE PRINCIPLE OF

SUGGESTION,--ON MR HUME'S CLASSIFICATION OF THE CAUSES OF ASSOCIATE

FEELINGS.

Gentlemen, my general arrangement of the various phenomena, or states

of the mind, is, I trust, now sufficiently familiar to you. We know the

mind only in the succession of these states, as they vary, from moment

to moment; and you have learned to class them, as, in the first place,

External or Internal Affections, according as the mental changes of

state that are induced, have arisen immediately from the presence of

external objects, or from some preceding state of the mind itself,--and

the latter of these classes, you have learned also to subdivide into

its two distinct orders of _Intellectual States of the Mind_ and

_Emotions_. Thus far we have proceeded, I trust, without much risk of

misconception.

In my last Lecture, I proceeded to consider the former of these orders,

and arranged all the variety of our Intellectual States of Mind

under two generic capacities,--those of _Simple_ and of _Relative_

suggestion. Intellectually, we conceive or we judge; our _past_

feelings, in _Simple Suggestion_, of image after image, arise again,

in colours more or less faint, without any known cause exterior to

the mind. By our capacity of the other species of Suggestion, we are

impressed with feelings of a different order, that arise when two or

more objects are contemplated together,--feelings of their agreement,

proportion, or some one or other of the variety of their relations. Of

these two orders of feelings, and of these alone, consists the whole

varied tissue of our trains of thought. All the intellectual powers, of

which writers on this branch of science speak, are, as we shall find,

only modes of these two, as they exist simply, or as they exist in

combination with some desire more or less permanent,--with the desire

of prosecuting a continued inquiry, for example, or of evolving its

results to others,--as in the long series of our ratiocination; or of

framing some splendid succession of images and incidents, as in the

magic pictures of poetry and romance. The simplification may, perhaps,

at present appear to you excessive; but I flatter myself, that after

the two generic capacities themselves shall have been fully considered

by us, it will not appear to you more than is absolutely necessary for

accuracy of analysis and arrangement.

SIMPLE SUGGESTION.

The intellectual phenomena which we are, in the first place, to

consider, then, are those of Simple Suggestion, which are usually

classed under the general term of the _Association of Ideas_,--a term

employed to denote that tendency of the mind, by which feelings,

that were formerly excited by an external cause, arise afterwards,

in regular successions to each other, as it were spontaneously, or

at least without the immediate presence of any known external cause.

The limitation of the term, however, to those states of mind, which

are exclusively denominated ideas, has, I conceive, tended greatly to

obscure the subject, or at least to deprive us of the aid which we

might have received from it in the analysis of many of the most complex

phenomena. The influence of the associating principle itself extends,

not to ideas only, but to every species of affection of which the mind

is susceptible. Our internal joys, sorrows, and all the variety of our

emotions, are capable of being revived in a certain degree by the mere

influence of this principle, and of blending with the ideas or other

feelings which awakened them, in the same manner as our conceptions of

external things. These last, however, it must be admitted, present the

most striking and obvious examples of the influence of the principle,

and are, therefore, the fittest for illustrating it. The faint and

shadowy elements of past emotions, as mingling in any present feeling,

it may not be easy to distinguish; but our remembrances of things

without are clear and definite, and are easily recognized by us as

images of the past. We have seen, in the history of our senses, by

what admirable means Nature has provided for communicating to man

those first rude elements of knowledge, which are afterwards to be the

materials of his sublimest speculations,--and with what still more

admirable goodness she has ministered to his pleasure in these primary

elements of thought, and in the very provision which she has formed

for the subsistence of his animal frame,--making the organs by which

he becomes acquainted with the properties of external things, not the

fountain of knowledge only, but an ever-mingling source of enjoyment

and instruction.

It is through the medium of perception, as we have seen,--that is

to say, through the medium of those _sensitive capacities_ already

so fully considered by us,--that we acquire our knowledge of the

properties of external things. But if our knowledge of these properties

were limited to the moment of perception, and were extinguished forever

with the fading sensation from which it sprang, the acquisition of this

fugitive knowledge would be of little value. We should still, indeed,

be sensible of the momentary pleasure or pain; but all experience of

the past, and all that confidence in the regular successions of future

events, which flows from experience of the past, would of course, be

excluded by universal and instant forgetfulness. In such circumstances,

if the common wants of our animal nature remained, it is evident, that

even life itself, in its worst and most miserable state, could not be

supported; since, though oppressed with thirst and hunger, and within

reach of the most delicious fruits and the most plentiful spring-water,

we should still suffer without any knowledge of the means by which the

suffering could be remedied. Even if, by some provision of Nature, our

bodily constitution had been so framed, as to require no supply of

subsistence, or if, instinctively and without reflection, we had been

led on the first impulse of appetite, to repair our daily waste, and to

shelter ourselves from the various causes of physical injury to which

we are exposed, though our animal life might then have continued to be

extended to as long a period as at present, still, if but a succession

of momentary sensations, it would have been one of the lowest forms

of mere animal life. It is only as capable of looking before and

behind,--that is to say, as capable of those spontaneous suggestions

of thought which constitute _remembrance_ and _foresight_,--that we

rise to the dignity of intellectual being, and that man can be said

to be the image of that Purest of Intellects, who looks backward and

forward, in a single glance, not on a few years only, but on all the

ages of eternity. “Deum te scito esse,” says Cicero, in allusion to

these powers,--“Deum te scito esse, siquidem Deus est, qui viget, qui

sentit,--qui meminit, qui prævidet, qui tam regit et moderatur et movet

id corpus, cui præpositus est, quam hunc mundum princeps ille Deus.”

“Were it not so, the Soul, all dead and lost,

As the fix'd stream beneath the impassive frost,[138]

Form'd for no end, and impotent to please,

Would lie inactive on the couch of ease;

And, heedless of proud fame's immortal lay,

Sleep all her dull divinity away.”[139]

Without any remembrance of pleasures formerly enjoyed, or of sorrows

long past and long endured,--looking on the persons and scenes

which had surrounded us from the first moment of our birth, as if

they were objects altogether unknown to us,--incapable even of as

much reasoning as still gleams through the dreadful stupor of the

maniac,--or of conveying even that faint expression of thought with

which the rudest savages, in the rudest language, are still able to

hold some communication of their passions or designs;--such, but for

that capacity which we are considering, would have been the deplorable

picture of the whole human race. What is now revered by us as the

most generous and heroic virtue, or the most profound and penetrating

genius, would have been nothing more than this wretchedness and

imbecility. It is _the suggesting principle_, the reviver of thoughts

and feelings which have passed away, that gives value to all our other

powers and susceptibilities, intellectual and moral--not indeed, by

producing them, for, though unevolved, they would still, as latent

capacities, be a part of the original constitution of our spiritual

nature,--but by rousing them into action, and furnishing them with

those accumulating and inexhaustible materials, which are to be the

elements of future thought and the objects of future emotion. Every

talent by which we excel, and every vivid feeling which animates

us, derive their energy from the suggestions of this ever-active

principle. We love and hate,--we desire and fear,--we use means for

obtaining good, and avoiding evil,--because we remember the objects and

occurrences which we have formerly observed, and because the future, in

the similarity of the successions which it presents, appears to us only

a prolongation of the past.

In conferring on us the capacity of these spontaneous suggestions,

then, Heaven has much more than doubled our existence; for, without it,

and consequently without those faculties and emotions which involve

it, existence would scarcely have been desirable. The very importance

of the benefits which we derive from it, however, renders us perhaps

less sensible of its value; since it is so mingled, with all our

knowledge, and all our plans of action, that we find it difficult to

conceive a state of sentient being, of which it is not a part, and

to estimate, consequently, at a just amount, the advantage which it

affords. The _future memory of perception_ seems to us almost implied

in perception itself; and to speculate on that strange state of

existence which would have been the condition of man, if he had been

formed without the power of remembrance, and capable only of a series

of sensations, has, at first, an appearance almost of absurdity and

contradiction, as if we were imagining conditions which were in their

nature incompatible. Yet, assuredly, if it were possible for us to

consider such a subject _a priori_, the real cause of wonder would

appear to be, not in the _absence_ of the suggestions of memory, as in

the case, imagined, but in that remembrance of which we have the happy

experience. When a feeling, of the existence of which consciousness

furnishes the only evidence, has passed away so completely, that not

even the slightest consciousness of it remains, it would surely,--but

for that experience,--be more natural to suppose that it had perished

altogether, than that it should, at the distance of many years, without

any renewal of it by the external cause which originally produced it,

again start, as it were of itself, into being. To foresee that which

has not yet begun to exist, is, in itself, scarcely more unaccountable,

than to see as it were before us, what has wholly ceased to exist. The

present moment is all of which we are conscious, and which can strictly

be said to have a real existence, in relation to ourselves. That mode

of time, which we call the _past_, and that other mode of time, which

we call the _future_, are both equally unexisting. That the knowledge

of either should be added to us, so as to form a part of our present

consciousness, is a gift of Heaven, most beneficial to us indeed, but

most mysterious, and equally, or nearly equally mysterious, whether

the unexisting time, of which the knowledge is indulged to us, be the

future or the past.

The advantage which we derive from the principle of suggestion, it

must, however, be remarked, consists, not in its mere revival of

thoughts and feelings, of which we had before been conscious, but in

its revival of these in a certain order. If past objects and events

had been suggested to us again, not in that series, in which they

had formerly occurred, nor according to any of those relations,

which human discernment has been able to discover among them, but

in endless confusion and irregularity, the knowledge thus acquired,

however gratifying as a source of mere variety of feeling, would avail

us little, or rather would be wholly profitless, not merely in our

speculative inquiries as philosophers, but in the simplest actions

of common life. It is quite evident, that, in this case, we should

be altogether unable to turn our experience to account, as a mode

of avoiding future evil or obtaining future good; because, for this

application of our knowledge, it would be requisite that events, before

observed, should occur to us, at the time, when similar events might be

expected. We refrain from tasting the poisonous berry, which we have

known to be the occasion of death to him who tasted it; because the

mere _sight_ of it brings again before us the fatal event, which we

have heard or witnessed. We satisfy our appetite with a salutary fruit,

without the slightest apprehension; because its familiar appearance

recals to us the refreshment, which we have repeatedly received. But,

if these suggestions were reversed,--if the agreeable images of health

and refreshment were all that were suggested by the poisonous plant,

and pain, and convulsions, and death were the only images suggested by

the sight of the grateful and nourishing fruit, there can be no doubt,

to which of the two, our unfortunate preference would be given. To

take the most familiar of all instances,--that of language,--which,

either as written or spoken, is in such constant use, and which is so

essential, not merely to our first advance, from absolute barbarism,

but to the common domestic necessities, even of barbarous life,

that, without it, we can scarcely conceive two individuals, however

rude, to exist together,--this, it is evident, could not have been

invented,--nor, if invented, could it serve any other purpose than

to mislead,--if the words spoken were to have no greater chance of

suggesting the meaning intended by the speaker, than any other meaning,

which any other words of the language might be employed to denote. What

social affection could continue for an hour, if the sight of a friend

were to suggest, in intimate combination, not the kindnesses which he

had conferred, and all the enjoyments of which he had been the source,

but the malice, and envy, and revenge of some jealous and disappointed

enemy?

He who has given us, in one simple principle, the power of reviving

the past, has not made his gift so unavailing. The feelings, which

this wonderful principle preserves and restores, arise, not loosely

and confusedly--for what is there in the whole wide scene of nature,

which does so occur?--but, according to general laws or tendencies of

succession, contrived with the most admirable adaptation to our wants,

so as to bring again before us the knowledge formerly acquired by us,

at the very time when it is most profitable that it should return. A

value is thus given to experience, which otherwise would not be worthy

of the name; and we are enabled to extend it almost at pleasure, so as

to profit, not merely by that experience which the events of nature,

occurring in conformity with these general laws, must at any rate have

afforded to us,--but to regulate this very experience itself,--to

dispose objects and events, so that, by tendencies of suggestion, on

the firmness of which we may put perfect reliance, they shall give us,

perhaps at the distance of many years, such lessons as we may wish

them to yield,--and thus to invent and create, in a great measure,

the intellectual and moral history of our future life, as an epic

or dramatic writer arranges at his will the continued scenes of his

various and magnificent narrative. I need not add, that it is on this

skilful management of the laws, which regulate our trains of thought,

the whole theory and practice of _education_ are founded;--that art,

which I have already repeatedly represented to you as the noblest

of all the arts of man--itself the animating spirit of every other

art--which exerts its own immediate operation, not on lifeless things,

but on the affections and faculties of the soul itself--and which has

raised us from the dust, where we slept or trembled, in sluggish, yet

ferocious ignorance, the victims of each other, and of every element

around us, to be the sharers and diffusers of the blessings of social

polity, the measurers of the earth and of the skies, and the rational

worshippers of that eternal Being by whom they and we were created.

That there is a tendency of ideas to suggest each other, without any

renewed perception of the external objects which originally excited

them, and that the suggestion is not, altogether loose and indefinite,

but that certain ideas have a peculiar tendency to suggest certain

other relative ideas in associate trains of thought, is too familiar

to you, as a general fact of our intellectual nature, to require to be

illustrated by example.

It has been beautifully compared, by the most philosophic of our poets,

to the mutual influence of two sympathetic needles, which Strada, in

one of his Prolusions, availing himself of a supposed fact, which was

then believed, or scarcely doubted by many philosophers, makes the

subject of verses, supposed to be recited by Cardinal Bembo, in the

character of Lucretius. The needles were fabled to have been magnetized

together, and suspended over different circles, so as to be capable

of moving along an alphabet. In these circumstances, by the remaining

influence of their original kindred magnetism, they were supposed,

at whatever distance, to follow each other's motions, and pause

accordingly at the same point; so that, by watching them at concerted

hours, the friends, who possessed this happy telegraph, were supposed

to be able to communicate to each other their feelings, with the same

accuracy and confidence as when they were together.

“For when the different images of things,

By chance combin'd have struck the attentive soul

With deeper impulse, or, connected long,

Have drawn his frequent eye; howe'er distinct

The external scenes, yet oft the ideas gain

From that conjunction an eternal tie

And sympathy unbroken. Let the Mind

Recal one partner of the various league,--

Immediate, lo! the firm confederates rise,

And each his former station straight resumes;

One movement governs the consenting throng,

And all at once with rosy pleasure shine,

Or all are sadden'd with the glooms of care.

'Twas thus, if ancient fame the truth unfold,

Two faithful needles, from the informing touch

Of the same parent-stone, together drew

Its mystic virtue, and at first conspir'd

With fatal impulse quivering to the pole,

Then, though disjoin'd by kingdoms,--though the main

Roll'd its broad surge betwixt,--and different stars

Beheld their wakeful motions,--yet preserv'd

The former friendship, and remember'd still

The alliance of their birth. Whate'er the line

Which one possessed, nor pause nor quiet knew

The sure associate, ere, with trembling speed,

He found its path, and fixed unerring there.

Such is the secret union, when we feel

A song, a flower, a name, at once restore

Those long connected scenes where first they mov'd

The attention. Backward through her many walks,

Guiding the wanton fancy to her scope,

To temples, courts, or fields,--with all the band

Of (living)[140] forms, of passions, and designs,

Attendant; whence, if pleasing in itself,

The prospect from that sweet accession gains

Redoubled influence o'er the listening Mind.

By these mysterious ties, the busy power

Of Memory her ideal train preserves

Entire; or, when they would elude her watch,

Reclaims their fleeting footsteps, from the waste

Of dark Oblivion.”[141]

What then are these _mysterious ties_?--or, to state the question more

philosophically, what are the general circumstances which regulate the

successions of our ideas?

That there is some regularity in these successions, must, as I have

already remarked, have been felt by every one; and there are many

references to such regularity in the works of philosophers of every

age. The most striking ancient reference, however, to any general

circumstances, or _laws_ of suggestion,--though the innumeration of

these is hinted, rather than developed at any length,--is that which

you will find in a passage, quoted by Dr Beattie and Mr Stewart, from

Aristotle. It is a passage explanatory of the process by which, in

voluntary reminiscence, we endeavour to discover the idea of which

we are in search. We are said to hunt for it--(Θηρεὺομεν is the word

in the original)--among other ideas, either of objects existing

at present, or at some former time; and from their resemblance,

contrariety, and contiguity--ἀπὸ τοῦ νῦν, ἢ ἂλλου τινὸς, καὶ ἀφ'

ὁμοίου, ἢ ἐναντίου, ἢ τοῦ συνέγγυς. Διὰ τοῦτο γινεταὶ ἡ ἀνάμνησις.[142]

This brief enumeration of the general circumstances which direct us

in reminiscence is worthy of our attention on its own account; and is

not less remarkable on account of the very close resemblance which it

bears to the arrangement afterwards made by Mr Hume, though there is

no reason to believe that the modern philosopher was at all acquainted

with the classification which had, at so great a distance of time,

anticipated his own.

I must remark, however, that though it would be in the highest degree

unjust to the well-known liberality and frankness of Mr Hume's

character, to suppose him to have been aware of any enumeration of the

general circumstances on which suggestion appears to depend, prior to

that which he has himself given us, his attempt was far from being

so original as he supposed. I do not allude merely to the passage of

Aristotle, already quoted, nor to a corresponding passage, which I

might have quoted, from one of the most celebrated of his commentators,

Dr Thomas Aquinas, but to various passages which I have found in the

works of writers of much more recent date, in which the influence

of _resemblance_ and _contiguity_, the two generic circumstances to

which, on his own principles, his own triple division should have been

reduced, is particularly pointed out. Thus, to take an example from an

elementary work of a very eminent author, Ernesti, published in the

year 1734,--his _Initia Doctrinæ Solidioris_,--with what precision has

he laid down those very laws of association of which Mr Hume speaks.

After stating the general fact of suggestion, or association, under

the Latin term _phantasia_, he proceeds to state the principles which

guide it. All the variety of these internal successions of our ideas,

he says, may be reduced to the following law. When one image is present

in the mind, it may suggest the image of some absent object--either

of one that is similar in some respect to that already present--or of

one of which the present is a part--or of one which has been present

together with it on some former occasion. “Hujus autem phantasiæ lex

hæc est; Præsentibus animo rerum imaginibus quibuscunque, recurrere et

redire ad animum possunt rerum absentium olimque perceptarum imagines,

præsentibus similes, vel quarum, quæ sunt præsentes, partes sunt,--vel

denique, quas cum præsentibus simul hausimus.”[143]

Even the arrangement, as stated by Mr Hume, is not expressed in more

formal terms. But as it is to his arrangement the philosophers of our

own country are accustomed to refer, in treating of association, the

importance thus attached to it gives it a preferable claim to our

fuller discussion. It is stated by him briefly in two paragraphs of his

Essay on the Association of Ideas.

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