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finer parts of the system; and if a certain mode of pain be of such a nature as to act upon the eye or the ear, as they are the most delicate organs, the affection approaches more nearly to that which has a mental cause. In all these cases, if the pain and terror are so modified as not to be actually noxious; if the pain is not carried to violence, and the terror is not conversant about the present destruction of the person, as these emotions clear the parts, whether fine or gross, of a dangerous and troublesome encumbrance, they are capable of producing delight; not pleasure, but a sort of delightful horror, a sort of tranquillity tinged with terror; which, as it belongs to self-preservation, is one of the strongest of all the passions. Its object is the sublime. Its highest degree I call astonishment; the subordinate degrees are awe, reverence, and respect, which, by the very etymology of the words, show from what source they are derived, and how they stand distinguished from positive pleasure.

SECT. VIII.-WHY THINGS NOT DANGEROUS PRODUCE A PASSION LIKE TERROR.

2 A MODE of terror or pain is always the cause of the sublime. For terror, or associated danger, the foregoing explication is, I believe, sufficient. It will require something more trouble to show, that such examples as I have given of the sublime in the second part are capable of producing a mode of pain, and of being thus allied to terror, and to be accounted for on the same principles. And first of such objects as are great in their dimensions. I speak of visual objects.

SECT. IX.-WHY VISUAL OBJECTS OF GREAT DIMENSIONS ARE SUBLIME.

VISION is performed by having a picture, formed by the rays of light which are reflected from the object, painted in one piece, instantaneously, on the retina, or last nervous part of the eye. Or, according to others, there is but one point of any object painted on the eye in such a manner as to be perceived at once; but by moving the eye, we gather

'Part II. sect. 2.

Part I. sect. 7. Part II. sect. 2.

up, with great celerity, the several parts of the object, so as to form one uniform piece. If the former opinion be allowed, it will be considered,' that though all the light reflected from a large body should strike the eye in one instant; yet we must suppose that the body itself is formed of a vast number of distinct points, every one of which, or the ray from every one, makes an impression on the retina. So that, though the image of one point should cause but a small tension of this membrane, another, and another, and another stroke, must in their progress cause a very great one, until it arrives at last to the highest degree; and the whole capacity of the eye, vibrating in all its parts, must approach near to the nature of what causes pain, and consequently must produce an idea of the sublime. Again, if we take it, that one point only of an object is distinguishable at once, the matter will amount nearly to the same thing, or rather it will make the origin of the sublime from greatness of dimension yet clearer. For if but one point is observed at once, the eye must traverse the vast space of such bodies with great quickness, and consequently the fine nerves and muscles destined to the motion of that part must be very much strained; and their great sensibility must make them highly affected by this straining. Besides, it signifies just nothing to the effect produced, whether a body has its parts connected and makes its impression at once; or, making but one impression of a point at a time, it causes a succession of the same or others so quickly as to make them seem united; as is evident from the common effect of whirling about a lighted torch or piece of wood: which, if done with celerity, seems a circle of fire.

SECT. X.-UNITY WHY REQUISITE TO VASTNESS.

Ir may be objected to this theory, that the eye generally receives an equal number of rays at all times, and that therefore a great object cannot affect it by the number of rays, more than that variety of objects which the eye must always discern whilst it remains open. But to this I answer, that admitting an equal number of rays, or an equal quantity of luminous particles, to strike the eye at all times, yet if these rays frequently vary their nature, now to blue, now to

Part II. sect. 7.

red, and so on, or their manner of termination, as to a number of petty squares, triangles, or the like, at every change, whether of colour or shape, the organ has a sort of relaxation or rest; but this relaxation and labour so often interrupted, is by no means productive of ease; neither has it the effect of vigorous and uniform labour. Whoever has remarked the different effects of some strong exercise, and some little piddling action, will understand why a teasing, fretful employment, which at once wearies and weakens the body, should have nothing great; these sorts of impulses, which are rather teasing than painful, by continually and suddenly altering their tenor and direction, prevent that full tension, that species of uniform labour, which is allied to strong pain, and causes the sublime. The sum total of things of various kinds, though it should equal the number of the uniform parts composing some one entire object, is not equal in its effect upon the organs of our bodies. sides the one already assigned, there is another very strong reason for the difference. The mind in reality hardly ever can attend diligently to more than one thing at a time; if this thing be little, the effect is little, and a number of other little objects cannot engage the attention; the mind is bounded by the bounds of the object; and what is not attended to, and what does not exist, are much the same in effect; but the eye, or the mind, (for in this case there is no difference,) in great, uniform objects, does not readily arrive at their bounds; it has no rest whilst it contemplates them; the image is much the same everywhere. So that everything great by its quantity must necessarily be one, simple and entire.

SECT. XI.-THE ARTIFICIAL INFINITE.

Be

WE have observed, that a species of greatness arises from the artificial infinite; and that this infinite consists in an uniform succession of great parts: we observed, too, that the same uniform succession had a like power in sounds. But because the effects of many things are clearer in one of the senses than in another, and that all the senses bear analogy to and illustrate one another, I shall begin with this power in sounds, as the cause of the sublimity fr: m succession

is rather more obvious in the sense of hearing. And I shall here, once for all, observe, that an investigation of the natural and mechanical causes of our passions, besides the curiosity of the subject, gives, if they are discovered, a double strength and lustre to any rules we deliver on such matters. When the ear receives any simple sound, it is struck by a single pulse of the air, which makes the ear-drum and the other membranous parts vibrate according to the nature and species of the stroke. If the stroke be strong, the organ of hearing suffers a considerable degree of tension. If the stroke be repeated pretty soon after, the repetition causes an expectation of another stroke. And it must be observed, that expectation itself causes a tension. This is apparent in many animals, who, when they prepare for hearing any sound, rouse themselves, and prick up their ears: so that here the effect of the sounds is considerably augmented by a new auxiliary, the expectation. But though, after a number of strokes, we expect still more, not being able to ascertain the exact time of their arrival, when they arrive, they produce a sort of surprise, which increases this tension yet further. For I have observed, that when at any time I have waited very earnestly for some sound, that returned at intervals, (as the successive firing of cannon,) though I fully expected the return of the sound, when it came it always made me start a little; the ear-drum suffered a convulsion, and the whole body consented with it. The tension of the part thus increasing at every blow, by the united forces of the stroke itself, the expectation, and the surprise, it is worked up to such a pitch as to be capable of the sublime; it is brought just to the verge of pain. Even when the cause has ceased, the organs of hearing being often successively struck in a similar manner, continue to vibrate in that manner for some time longer; this is an additional help to the greatness of the effect.

SECT. XII.-THE VIBRATIONS MUST BE SIMILAR.

BUT if the vibration be not similar at every impression, it can never be carried beyond the number of actual impressions; for move any body, as a pendulum, in one way, and it will continue to oscillate in an arch of the same circle, until the known causes make it rest; but if after first putting it

in motion in one direction, you push it into another, it can never reassume the first direction; because it can never move itself, and consequently it can have but the effect of that last motion; whereas, if in the same direction you act upon it several times, it will describe a greater arch, and move a longer time.

SECT. XIII.-THE EFFECTS OF SUCCESSION IN VISUAL

OBJECTS EXPLAINED.

If we can comprehend clearly how things operate upon one of our senses, there can be very little difficulty in conceiving in what manner they affect the rest. To say a great deal therefore upon the corresponding affections of every sense, would tend rather to fatigue us by an useless repetition, than to throw any new light upon the subject by that ample and diffuse manner of treating it; but as in this discourse we chiefly attach ourselves to the sublime, as it affects the eye, we shall consider particularly why a successive disposition of uniform parts in the same right line should be sublime,1 and upon what principle this disposition is enabled to make a comparatively small quantity of matter produce a grander effect, than a much larger quantity disposed in another manner. To avoid the perplexity of general notions; let us set before our eyes a colonnade of uniform pillars planted in a right line; let us take our stand in such a manner, that the eye may shoot along this colonnade, for it has its best effect in this view. In our present situation it is plain, that the rays from the first round pillar will cause in the eye a vibration of that species; an image of the pillar itself. The pillar immediately succeeding increases it; that which follows renews and enforces the impression; each in its order as it succeeds, repeats impulse after impulse, and stroke after stroke, until the eye, long exercised in one particular way, cannot lose that object immediately; and, being violently roused by this continued agitation, it presents the mind with a grand or sublime conception. But instead of viewing a rank of uniform pillars, let us suppose that they succeed each other, a round and a square one alternately. In this case the vibration caused by the first round pillar perishes as soon as it is formed:

1 Part II. sect. 10.

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