obvious as correlation of existence. In the logical process, the datum is not just real existence, and the idea mere psychical unreality. Both are modes of existence—one of given existence, the other of mental existence. And if the mental existence is in such cases regarded, from the standpoint of the unified experience aimed at, as having only possible value, the datum also is regarded, from the value standpoint, as incomplete and unassured. The very existence of the idea or meaning as separate is the partial, broken up, and hence objectively unreal (from the validity standpoint) character of the datum. Or, as we commonly put it, while the ideas are impressions, suggestions, guesses, theories, estimates, etc., the facts are crude, raw, unorganized, brute. They lack relationship, that is, assured place in the universe; they are deficient as to continuity. Mere change of apparent position of sun, which is absolutely unquestioned as datum, is a sheer abstraction from the standpoint either of the organized experience left behind, or of the reorganized experience which is the end—the objective. It is impossible as a persistent object in experience or reality. In other words, datum and ideatum are divisions of labor, co-operative instrumentalities, for economical dealing with the problem of the maintenance of the integrity of experience.
Once more, and briefly, both datum and ideatum may (and positively, veritably, do) break up, each for itself, into physical and psychical. In so far as the conviction gains ground that the earth revolves about the sun, the old fact is broken up into a new cosmic existence, and a new psychological condition—the recognition of a mental process in virtue of which movements of smaller bodies in relation to very remote larger bodies are interpreted in a reverse sense. We do not just eliminate as false the source of error in the old content. We reinterpret it as valid in its own place, viz., a case of the psychology of apperception, although invalid as a matter of cosmic structure. In other words, with increasing accuracy of determination of the given, there comes a distinction, for methodological purposes, between the quality or matter of the sense-experience and its form—the sense-perceiving, as itself a psychological fact, having its own place and laws or relations. Moreover, the old experience, that of sun-revolving, abides. But it is regarded as belonging to "me"—to this experiencing individual, rather than to the cosmic world. It is psychic.
Here, then, within the growth of the thought-situation and as a part of the process of determining specific truth under specific conditions, we get for the first time the clue to that distinction with which, as ready-made and prior to all thinking, Lotze started out, namely, the separation of the matter of impression from impression as psychical event. The separation which, taken at large, engenders an insoluble problem, appears within a particular reflective inquiry, as an inevitable differentiation of a scheme of values.
The same sort of thing occurs on the side of thought, or meaning. The meaning or idea which is growing in acceptance, which is gaining ground as meaning-of-datum, gets logical or intellectual or objective force; that which is losing standing, which is increasingly doubtful, gets qualified as just a notion, a fancy, a pre-judice, mis-conception—or finally just an error, a mental slip.
Evaluated as fanciful in validity it becomes mere image—subjective;17 and finally a psychical existence. It is not eliminated, but receives a new reference or meaning. Thus the distinction between subjectivity and objectivity is not one between meaning as such and datum as such. It is a specification that emerges, correspondently, in both datum and ideatum, as affairs of the direction of logical movement. That which is left behind in the evolution of accepted meaning is characterized as real, but only in a psychical sense; that which is moved toward is regarded as real in an objective, cosmic sense.18
The implication of the psychic and the logical within both the given presentation and the thought about it, appears in the continual shift to which logicians of Lotze's type are put. When the psychical is regarded as existence over against meaning as just ideal, reality seems to reside in the psychical; it is there anyhow, and meaning is just a curious attachment—curious because as mere meaning it is non-existent as event or state—and there seems to be nothing by which it can be even tied to the psychical state as its bearer or representative. But when the emphasis falls on thought as content, as significance, then the psychic event, the idea as image19 (as distinct from idea as meaning) appears as an accidental but necessary evil, the unfortunate irrelevant medium through which our thinking has to go on.20
1. The data of thought.—When we turn to Lotze, we find that he makes a clear distinction between the presented material of thought, its datum, and the typical characteristic modes of thinking in virtue of which the datum gets organization or system. It is interesting to note also that he states the datum in terms different from those in which the antecedents of thought are defined. From the point of view of the material upon which ideas exercise themselves, it is not coincidence, collocation, or succession that counts; but gradation of degrees in a scale. It is not things in spatial or temporal grouping that are emphasized, but qualities as mutually distinguished, yet classed—as differences of a common somewhat. There is no inherent inconceivability in the idea that every impression should be as incomparably different from every other as sweet is from warm. But by a remarkable circumstance such is not the case. We have series, and networks of series. We have diversity of a common—diverse colors, sounds, smells, tastes, etc. In other words, the datum is sense-qualities which, fortunately for thought, are given arranged, as shades, degrees, variations, or qualities of somewhat that is identical.21
All this is given, presented, to our ideational activities. Even the universal, the common-color which runs through the various qualities of blue, green, white, etc., is not a product of thought, but something which thought finds already in existence. It conditions comparison and reciprocal distinction. Particularly all mathematical determinations, whether of counting (number), degree (more or less), and quantity (greatness and smallness), come back to this peculiarity of the datum of thought. Here Lotze dwells at considerable length upon the fact that the very possibility, as well as the success, of thought is due to this peculiar universalization or prima facie ordering with which its material is given to it. Such pre-established fitness in the meeting of two things that have nothing to do with each other is certainly cause enough for wonder and congratulation.
It should not be difficult to see why Lotze uses different categories in describing the given material of thought from those employed in describing its antecedent conditions, even though, according to him, the two are absolutely the same.22 He has different functions in mind. In one case, the material must be characterized as evoking, as incentive, as stimulus—from this point of view the peculiar combination of coincidence and coherence is emphasized. But in the other case the material must be characterized as affording stuff, actual subject-matter. Data are not only what is given to thought, but they are also the food, the raw material, of thought. They must be described as, on the one hand, wholly outside of thought. This clearly puts them into the region of sense-perception. They are matter of sensation given free from all inferring, judging, relating influence. Sensation is just what is not called up in memory or in anticipated projection—it is the immediate, the irreducible. On the other hand, sensory-matter is qualitative, and quales are made up on a common basis. They are degrees or grades of a common quality. Thus they have a certain ready-made setting of mutual distinction and reference which is already almost, if not quite, the effect of comparing, of relating, and these are the express traits of thinking.
It is easy to interpret this miraculous gift of grace in the light of what has been said. The data are in truth precisely that which is selected and set aside as present, as immediate. Thus they are given to further thought. But the selection has occurred in view of the need for thought; it is a listing of the capital in the way of the undisturbed, the undiscussed, which thought can count upon in this particular problem. Hence it is not strange that it has a peculiar fitness of adaptation for thought's further work. Having been selected with precisely that end in view, the wonder would be if it were not so fitted. A man may coin counterfeit money for use upon others, but hardly with the intent of passing it off upon himself.
Our only difficulty here is that the mind flies away from the logical interpretation of sense-datum to a ready-made notion of it brought over from abstract psychological inquiry. The belief in sensory quales as somehow forced upon us, and forced upon us at large, and