Analysis of the Phenomena of the Human Mind

by James Mill

1. Belief in present events, again, is divided into two cases: 1, Belief in immediate existences present to my senses; 2, Belief in immediate existences not present to my senses.

Belief in existences present to my senses, includes, for one element, belief in my sensations; and belief in my sensations, as we have just observed, is only another name for having the sensations.

But belief in the external objects, is not simply belief in my present sensations; it is this, and something more. The something more, is now the object of our inquiry. I see, for example, a rose: my sensation is a sensation of sight: that of a certain modification of light; but my belief of the rose is not this; it is this, and much more.

Besides the sensation of colour, I have, for one thing, the belief of a certain distance, at which I see 345 the rose; and that of a certain figure, consisting of leaves disposed in a certain form. I believe that I see this distance and form; in other words, perceive it by the eye, as immediately as I perceive the colour. Now this last part of the process has been explained by various philosophers. There is no dispute, or uncertainty, about the matter. All men admit, that this, one of the most remarkable of all cases of belief, is wholly resolvable into association.[98] It is acknowledged, that, by the sense of sight, we receive no sensation but that of a certain modification of light. It is equally proved, that the sensations from which our ideas of distance and figure are derived, are sensations of the muscular actions and touch. How, then, is the Belief generated, that we see extension and figure, as well as colour? After the experience the learner has now had in tracing the rapid combinations of the mind, this presents but little difficulty. He knows, that when we are receiving through the muscles and the touch, the sensations which yield us the idea of extension and figure, we are receiving the sensations of sight at the same time, from the same objects. The sensations of sight, therefore, are 346 associated with the ideas of these tactile and muscular sensations; and associated in the most perfect possible manner; because the conjunction is almost invariable, and of incessant occurrence, during the whole period of life. We are perpetually feeling, and seeing, the same objects, at the same time; so much so, that our lives may be said to consist of those sensations in union; to consist, at least to a far greater degree, of this, than of any one other state of consciousness.

[⁹⁸] “All men admit.” Certainly not all men; though, at the time when the author wrote, it might be said, with some plausibility, all psychologists. Unfortunately this can no longer be said: Mr. Samuel Bailey has demanded a rehearing of the question, and has pronounced a strong and reasoned opinion on the contrary side; and his example has been followed by several other writers: but without, in my opinion, at all weakening the position which since the publication of Berkeley’s Essay on Vision, had been almost unanimously maintained by philosophers.—Ed.

This intensity of association, we know, produces two effects. One, is to blend the associated feelings so intimately together, that they no longer appear many, but one feeling. The other is, to render the combination inseparable; so that if one of the feelings exist, the others necessarily exist along with it.

The case of association which we are now considering, brings to view another circumstance, of some importance in tracing the effects of this great law of our nature. It is this: that in any associated cluster, the idea of sight is almost always the prevalent part. The visible idea is that which takes the lead, as it were; and serves as the suggesting principle to the rest. So it happens in the combination of the sensations of colour, with those of extension and figure: the visible idea stands foremost; and calls up the rest. It calls them up also with such intensity, that both the remarkable cases of association are exemplified. Whenever we have the sensation of colour, we cannot avoid having the ideas of distance, of extension, and figure, along with it; nor can we avoid having them in such intimate union with the ocular sensation, that they appear to be that sensation itself. 347 This is the whole of what is ever supposed to be in the case. Of no phenomenon of the human mind is the developement more complete or more important. Our belief that we see the shape, and size, and distance of the object we look at, is as perfect as belief in any instance can be. But this belief is nothing more than a case of very close association.

The case of belief by association, any one may illustrate further, for himself, by recollecting some of the commonest cases of optical deception. If we look at a landscape with the naked eye, we believe the several objects before us, the men, the animals, the trees, the houses, the hills, to be at certain distances. If we next look at them through a telescope, they seem as if they were brought near; we have the distinct belief of their proximity, and though a belief immediately corrected by accompanying reflection, it is not only belief, but a belief that we can by no means shake off. We can, after this, invert the telescope, and then we cannot help believing, that the nearest objects are removed to a distance. Now what is it that the telescope performs in these two instances? It modifies in a certain manner the rays of light to the eye. The rays, proceeding from the objects, are so distributed on the eye, as they would be if the distance of the objects was less, or greater. Instantly we have the belief that it is less or greater; because, the sensation of the eye, by means of the glass, is made to resemble that which it receives, when objects are seen at a smaller or greater distance; and each of the sensations calls up that idea of distance which is habitually associated with it.

We have thus far proceeded, with some certainty, 348 in detecting the component parts of that which we call our “belief in the existence of external objects.” We have taken account of the sensation from which is derived the visible idea, of the sensations from which are derived the ideas of position, extension, and figure; and we have explained the intimate combination of those two sets of ideas by association. But these, though the leading sensations and ideas, are not the only ones. There are, besides, the sensations from which we derive the idea of resistance, in all its modifications, from that of air, to that of adamant. There are also sensations which are not common to all objects, but peculiar to some; as smell, peculiar to odorous bodies; taste, to sapid; and sound, to sonorous ones.

Now, though the most remarkable case of the associations among those feelings, is that between colour, and extension and figure, they are all blended by association into one idea; which, though in reality a cluster of ideas, affects us in the same manner as if it were a single idea; an idea, the parts of which we detect by an analysis, which it requires some training to be able to make.