Philosophic Imagination.—The term philosophic imagination, in distinction from poetic, is employed by the same distinguished writer to denote the faculty, possessed by some minds of a high order, of discovering new truths in science; of so classifying and arranging known facts as to bring to light the laws which govern them, or, by a happy conjecture, assigning to phenomena hitherto unexplained, a theory which will account for them. Whether the faculty now intended is properly imagination, admits of question. Its field is that of conjecture, supposition, theory, invention. It involves the exercise of judgment and reason. It seeks after truth. It is a process of discovering what is. Imagination deals with the ideal only—inquires not for the true.
§ IV.—Imagination a Simple Faculty.
Common Theory.—The view which has been very generally entertained of the faculty now under consideration, both in this country, and by the Scotch philosophers, resolves it partially or wholly into other powers of the mind, as abstraction, association, judgment, taste. In this view, it is no longer a simple faculty, if indeed it can with propriety be called a faculty at all, inasmuch as the effects ascribed to it can be accounted for by the agency of the other powers now named.
A different View.—It seems to me that imagination, while doubtless it presupposes and involves the exercise of the suggestive and associative principle, of the analytic or divisive principle by which compounds are broken up into their distinct elements, and also, to some extent, of judgment, or the principle which perceives relations, is, nevertheless, itself a power distinct from each of these, and from all of them in combination. Memory presupposes perception, or something to be reproduced and remembered. It is not, therefore, to be regarded as a complex faculty, comprising the perceptive power as one of its factors. The power to combine, in like manner, presupposes the previous separation of elements capable of being reunited, but is not to be resolved into that power which produces such separation. It involves some exercise of judgment along with its own proper and distinctive activity, but is not to be confounded with, or resolved into the power of perceiving relations.
The faculty of ideal conception is really a power of the mind, and it is a simple power, a thing of itself, although it may involve and presuppose the activity of other faculties along with its own. Abstraction, association, judgment, taste—none of them singly, nor all of them combined, are what we mean by it.
Theory of Brown.—Dr. Brown resolves the faculty now in question into simple suggestion, accompanied, in the case of voluntary imagination, with desire, and with judgment. There is nothing in the process different from what occurs in any case of the suggestion of one thought by another, he would say. We think of a mountain, we think of gold, and some analogy, or common property of the two, serves to suggest the complex conception, mountain of gold. Even where the process is not purely spontaneous, but accompanied with desire on our part, it is still essentially the same process. We think of something, and this suggests other related conceptions, some of which we approve as fit for our purpose, others we reject as unfit. Here is simple suggestion accompanied with desire and judgment; and these are all the factors that enter into the process. "We may term this state, or series of states, imagination or fancy, and the term may be convenient for its brevity. But in using it we must not forget that the term, however brief and simple, is still the name of a state that is complex, or of a succession of states, that the phenomena comprehended under it being the same in nature, are not rendered, by the use of a mere word, different from those to which we have already given peculiar names expressive of them as they exist separately, and that it is to the classes of these elementary phenomena, therefore, that we must refer the whole process of imagination in our philosophic analysis."
Strictures on this Theory.—This view, it will be perceived, in reality sweeps the faculty of imagination entirely from the field. To this I cannot yield my assent. Is not this state, or affection of the mind, as Dr. Brown calls it, quite a distinct thing from other mental states and affections? Has it not a character sui generis? Is not the operation, the thing done, a different thing from what is done in other cases, and by other faculties; and has not the mind the power of doing this new and different thing; and is not that power of doing a given thing what we mean in any case by a faculty of the mind? Is there not an element in this process under consideration which is not involved in other mental processes, viz.: the ideal element; the conception, not of the actual and the real, as in the case of the other faculties, but of the purely ideal? And if the mind has the faculty of forming a class of conceptions so entirely distinct from the others, why not give that faculty a name, and its own proper name, and allow it a place, its own proper place, among the mental powers?
§ V.—Imagination not merely the Power of Combination.
The prevalent View.—This question is closely connected with that just discussed. The usual definitions make the faculty under consideration a mere process of combining and arranging ideas previously in the mind, so as to form new compounds. You have certain conceptions. These you combine one with another, as a child puts together blocks that lie before him, to suit himself, now this uppermost, now that, and the result is a world of imagination. It is the mere arrangement of previous conceptions, and not itself a power of producing or connecting any thing. And even this arrangement of former conceptions is itself a spontaneous casual process, according to Dr. Brown, not properly a power of the mind.