Ideas are mental sediment; conceived things are mental growths. A concretion in discourse occurs by repetition and mere emphasis on a datum, but a concretion in existence requires a synthesis of disparate elements and relations. An idea is nothing but a sensation apperceived and rendered cognitive, so that it envisages its own recognised character as its object and ideal: yellowness is only some sensation of yellow raised to the cognitive power and employed as the symbol for its own specific essence. It is consequently capable of entering as a term into rational discourse and of becoming the subject or predicate of propositions eternally valid. A thing, on the contrary, is discovered only when the order and grouping of such recurring essences can be observed, and when various themes and strains of experience are woven together into elaborate progressive harmonies. When consciousness first becomes cognitive it frames ideas; but when it becomes cognitive of causes, that is, when it becomes practical, it perceives things.
Ideas prior in the order of knowledge, things in the order of nature.
Concretions of qualities recurrent in time and concretions of qualities associated in existence are alike involved in daily life and inextricably ingrown into the structure of reason. In consciousness and for logic, association by similarity, with its aggregations and identifications of recurrences in time, is fundamental rather than association by contiguity and its existential syntheses; for recognition identifies similars perceived in succession, and without recognition of similars there could be no known persistence of phenomena. But physiologically and for the observer association by contiguity comes first. All instinct—without which there would be no fixity or recurrence in ideation—makes movement follow impression in an immediate way which for consciousness becomes a mere juxtaposition of sensations, a juxtaposition which it can neither explain nor avoid. Yet this juxtaposition, in which pleasure, pain, and striving are prominent factors, is the chief stimulus to attention and spreads before the mind that moving and variegated field in which it learns to make its first observations. Facts—the burdens of successive moments—are all associated by contiguity, from the first facts of perception and passion to the last facts of fate and conscience. We undergo events, we grow into character, by the subterraneous working of irrational forces that make their incalculable irruptions into life none the less wonderfully in the revelations of a man’s heart to himself than in the cataclysms of the world around him. Nature’s placid procedure, to which we yield so willingly in times of prosperity, is a concatenation of states which can only be understood when it is made its own standard and law. A sort of philosophy without wisdom may seek to subjugate this natural life, this blind budding of existence, to some logical or moral necessity; but this very attempt remains, perhaps, the most striking monument to that irrational fatality that rules affairs, a monument which reason itself is compelled to raise with unsuspected irony.
Aristotle’s compromise.
Reliance on external perception, constant appeals to concrete fact and physical sanctions, have always led the mass of reasonable men to magnify concretions in existence and belittle concretions in discourse. They are too clever, as they feel, to mistake words for things. The most authoritative thinker on this subject, because the most mature, Aristotle himself, taught that things had reality, individuality, independence, and were the outer cause of perception, while general ideas, products of association by similarity, existed only in the mind. The public, pleased at its ability to understand this doctrine and overlooking the more incisive part of the philosopher’s teaching, could go home comforted and believing that material things were primary and perfect entities, while ideas were only abstractions, effects those realities produced on our incapable minds. Aristotle, however, had a juster view of general concepts and made in the end the whole material universe gravitate around them and feel their influence, though in a metaphysical and magic fashion to which a more advanced natural science need no longer appeal. While in the shock of life man was always coming upon the accidental, in the quiet of reflection he could not but recast everything in ideal moulds and retain nothing but eternal natures and intelligible relations. Aristotle conceived that while the origin of knowledge lay in the impact of matter upon sense its goal was the comprehension of essences, and that while man was involved by his animal nature in the accidents of experience he was also by virtue of his rationality a participator in eternal truth. A substantial justice was thus done both to the conditions and to the functions of human life, although, for want of a natural history inspired by mechanical ideas, this dualism remained somewhat baffling and incomprehensible in its basis. Aristotle, being a true philosopher and pupil of experience, preferred incoherence to partiality.
Empirical bias in favour of contiguity.
Active life and the philosophy that borrows its concepts from practice has thus laid a great emphasis on association by contiguity. Hobbes and Locke made knowledge of this kind the only knowledge of reality, while recognising it to be quite empirical, tentative, and problematical. It was a kind of acquaintance with fact that increased with years and brought the mind into harmony with something initially alien to it. Besides this practical knowledge or prudence there was a sort of verbal and merely ideal knowledge, a knowledge of the meaning and relation of abstract terms. In mathematics and logic we might carry out long trains of abstracted thought and analyse and develop our imaginations ad infinitum. These speculations, however, were in the air or—what for these philosophers is much the same thing—in the mind; their applicability and their relevance to practical life and to objects given in perception remained quite problematical. A self-developing science, a synthetic science a priori, had a value entirely hypothetical and provisional; its practical truth depended on the verification of its results in some eventual sensible experience. Association was invoked to explain the adjustment of ideation to the order of external perception. Association, by which association by contiguity was generally understood, thus became the battle-cry of empiricism; if association by similarity had been equally in mind, the philosophy of pregnant reason could also have adopted the principle for its own. But logicians and mathematicians naturally neglect the psychology of their own processes and, accustomed as they are to an irresponsible and constructive use of the intellect, regard as a confused and uninspired intruder the critic who, by a retrospective and naturalistic method, tries to give them a little knowledge of themselves.
Artificial divorce of logic from practice.
Rational ideas must arise somehow in the mind, and since they are not meant to be without application to the world of experience, it is interesting to discover the point of contact between the two and the nature of their interdependence. This would have been found in the mind’s initial capacity to frame objects of two sorts, those compacted of sensations that are persistently similar, and those compacted of sensations that are momentarily fused. In empirical philosophy the applicability of logic and mathematics remains a miracle or becomes a misinterpretation: a miracle if the process of nature independently follows the inward elaboration of human ideas; a misinterpretation if the bias of intelligence imposes a priori upon reality a character and order not inherent in it. The mistake of empiricists—among which Kant is in this respect to be numbered—which enabled them to disregard this difficulty, was that they admitted, beside rational thinking, another instinctive kind of wisdom by which men could live, a wisdom the Englishmen called experience and the Germans practical reason, spirit, or will. The intellectual sciences could be allowed to spin themselves out in abstracted liberty while man practised his illogical and inspired art of life.
Here we observe a certain elementary crudity or barbarism which the human spirit often betrays when it is deeply stirred. Not only are chance and divination welcomed into the world but they are reverenced all the more, like the wind and fire of idolaters, precisely for not being amenable to the petty rules of human reason. In truth, however, the English duality between prudence and science is no more fundamental than the German duality between reason and understanding.[A] The true contrast is between impulse and reflection, instinct and intelligence. When men feel the primordial authority of the animal in them and have little respect for a glimmering reason which they suspect to be secondary but cannot discern to be ultimate, they readily imagine they are appealing to something higher than intelligence when in reality they are falling back on something deeper and lower. The rudimentary seems to them at such moments divine; and if they conceive a Life of Reason at all they despise it as a mass of artifices and conventions. Reason is indeed not indispensable to life, nor needful if living anyhow be the sole and indeterminate aim; as the existence of animals and of most men sufficiently proves. In so far as man is not a rational being and does not live in and by the mind, in so far as his chance volitions and dreamful ideas roll by without mutual representation or adjustment, in so far as his body takes the lead and even his galvanised action is a form of passivity, we may truly say that his life is not intellectual and not dependent on the application of general concepts to experience; for he lives by instinct.