Category

“ But we shall have to follow here the guidance of the categories,—only, as in the present case a thing, "I," as thinking being, is at first given, we shall—not indeed change the order of the categories as it stands in the table,—but begin at the category of substance, by which at the a thing a thing is represented and proceeds backwards through the series. ”

“ the category of class was at first indistinct from the concept of the human group; it is the rhythm of social life which is at the basis of the category of time; the territory occupied by the society furnished the material for the category of space; it is the collective force which was the prototype of the concept of efficient force, an essential element in the category of causality. ”

“ The incongruity of erecting into a summum genus the class which forms the tenth category is manifest. On the other hand, the enumeration takes no notice of any thing besides substances and attributes. In what category are we to place sensations, or any other feelings and states of mind; as hope, joy, fear; sound, smell, taste; pain, pleasure; thought, judgment, conception, and the like? Probably all these would have been placed by the Aristotelian school in the categories of actio and passio ”

“ The categories of 'thought' and 'things' are indispensable here--instead of being realities we now call certain experiences only 'thoughts.' There is not a category, among those enumerated, of which we may not imagine the use to have thus originated historically and only gradually spread. ”

“ They are our own notions resulting from co-operation of imagination and judgment, concerning the ultimate and unanalyzable forms of our own existence and development.” In other words, the categories are highly abstract, have no content, and are realized as a kind of thinking which has for its object all the other mental processes. ”

“ It becomes apparent also why the analysis of the categories starts from the singular thing, for it is the primary form under which all that is becomes object of knowledge, and the other categories modify or qualify this real individual. ”

“ But the understanding in the process of knowledge makes use of the universal form of synthesis, the judgment; intellectual function is essentially of the nature of judgment or the reduction of a manifold to unity through a conception. The specific or type forms of such function will, therefore, be expressed in judgments; and a complete classification of the forms of judgments is the key by which one may hope to discover the system of categories. ”

“ But the main objection to the classification we are considering is not so much its want of absolute distinctness (a defect incident to all classification, in every department of science) as its one-sidedness: it is too much like the proverbial lover's division of the world into two parts, that where the beloved object is and that where she is not: it leaves almost all human tongues in one huge class together. ”

“ For again we divide that which walks into rational and irrational; and then selecting from the species, apprehended by division, those next to man, and combining them into one formula, we state the definition of a man, who is an animal, mortal, terrestrial, walking, rational.
Whence Division furnishes the class of matter, seeking for the definition the simplicity of the name; and the definition of the artisan and maker, by composition and construction, presents the knowledge of the thing as it is; not of those things of which we have general notions. ”

“ The object of classification is clear. We understand things if we can comprehend them; that is to say, if we can grasp and hold together single facts, connect isolated impressions, distinguish between what is essential and what is merely accidental, and thus predicate the general of the individual, and class the individual under the general. This is the secret of all scientific knowledge. Many sciences, while passing through this second or classificatory stage, assume the title of comparative. ”

“ In Book I, Chapter II, I have adopted a new definition of ‘Classification’, which enables me to regard the whole Universe as a ‘Class,’ and thus to dispense with the very awkward phrase ‘a Set of Things.’
In the Chapter on ‘Propositions of Existence’ I have adopted a new ‘normal form,’ in which the Class, whose existence is affirmed or denied, is regarded as the Predicate, instead of the Subject, of the Proposition, thus evading a very subtle difficulty which besets the other form. ”

“ This "unless—or unless" may suggest caution in using dichotomy as a short cut to the classification of realities.
4. No Sub-class must include anything that is not comprised in the class to be divided: the Genus comprises all the Species. We must not divide Dogs into fox-terriers and dog-fish.
§ 6. The process of Inductive Classification may be represented thus:
Given any multitude of individuals to be classified:
(1) Place together in groups (or in thought) those things that have in common the most, the most widely diffused and the most important qualities. ”

“ We are in a dilemma: we cannot describe mankind at all without categories, and if we go on to make our categories more and more exact, each one of them would at last contain only one person. Two things result which are practically important, and which furnish us with scientific concepts which we can employ in further study: (1) The classification gives us the notion of the relative position of one, or a subdivision, in the entire group. ”

“ This discovery is made by means of comparison and classification. We cease to study each flower for its own sake; and by continually enlarging the sphere of our observation, we try to discover what is common to many and offers those essential points on which groups or natural classes may be established. These classes again, in their more general features, are mutually compared; new points of difference, or of similarity of a more general and higher character, spring to view, and enable us to discover classes of classes, or families. ”

“ You must have a wide genus with its fundamentum divisionis, and, within this, species distinguished by their several differentiæ.
Next, as to the verbal process, rules are commonly laid down mostly of a trifling and obvious character. That "a definition should state neither more nor less than the common attributes of the class," or than the attributes signified by the class-name, is sometimes given as a rule of definition. This is really an explanation of what a definition is, a definition of a definition. ”

“ In the same way, the conception of self implies the possibility of an other. The Ground is the self abstracted from the concreteness which implies the possibility of an other.
§ 13. Since no one of the categories can be prescinded from those above it, the list of supposable objects which they afford is,
What is. Quale — that which refers to a ground, Relate — that which refers to ground and correlate, Representamen — that which refers to ground, correlate, and interpretant. It. § 14. A quality may have a special determination which prevents its being prescinded from reference to a correlate. ”

“ What classes of things have a greater share of pure existence, in your judgment—those of which food and drink and condiments and all kinds of sustenance are examples, or the class which contains true opinion and knowledge and mind and all the different kinds of virtue? ”

“ That their ambiguity illustrates beautifully my central thesis that subjectivity and objectivity are affairs not of what an experience is aboriginally made of, but of its classification. Classifications depend on our temporary purposes. For certain purposes it is convenient to take things in one set of relations, for other purposes in another set. ”

“ As we glance at these classes we quickly detect that what may be called their vocations are extremely different; that each class—with the exception, perhaps, of two, the professional and the commercial, with that part of the indefinite class which is composed of persons of rank and property, and which approach each other—are as widely separated in tastes and habits and inclinations as they are in labors and works. Looking at the education of body and mind in these classes as a whole, there is certainly little enough of symmetry. ”

“ Categories as modes of understanding, schemata as modes of productive imagination, data of sense as modes of affection, are linked together, and appear to have a nature and existence independently of one another, and of the synthesis in which they are combined. ”

“ Historically, dialectic turning on the use of words preceded the attempt to formulate principles of Definition, and attempts at precise definition led to Division and Classification, that is to systematic arrangement of the objects to be defined. Attempt to define any such word as "education," and you gradually become sensible of the needs in respect of method that forced themselves upon mankind in the history of thought. ”

“ But while within each class there are groups and sub-groups and sub-sub-groups which differ in their degrees of generality, the classes themselves differ only in their degrees of abstractness.3
Let us pass to the sub-divisions of these classes. The first class is separable into two parts—the one containing universal truths, the other non-universal truths. Dealing {82} wholly with relations apart from related things, Abstract Science considers first, that which is common to all relations whatever; and, second, that which is common to each order of relations. ”

“ Common terms, other than attributives, ought always to admit of definition. For things are distributed by the mind into classes owing to their possessing certain attributes in common, and the definition of the class-name can be effected by detailing these attributes, or at least a sufficient number of them. ”

“ When we take phenomena in which the leading Idea is Resemblance, and resolve them into precise component Facts, we obtain some kind of Classification; as, for instance, when we lay down certain Rules by which particular trees, or particular animals are to be known. ”

“ The point of grouping facts into classes, whether by analysing them into qualities or classifying them into “real things,” is that we can then apply to the particular fact all that we know to be true in general of whatever belongs to these various classes: in a word, once we have fitted a fact into a class we can apply to it all the general laws which are known to apply to that class. ”

“ The systematic alone advances to the third.
Classification in the first sense, it is plain, is the same as “entry;” in the second {11} sense it is the same as “class-entry;” and in the third sense it is the same as the “logical arrangement” of the table on p. 12, under “Classed catalogue.”
It is worth while to ascertain the relation of subject and class in the subject-catalogue. Subject is the matter on which the author is seeking to give or the reader to obtain information; Class is, as said above, a grouping of subjects which have characteristics in common. ”

“ A new classification, therefore, which includes, in its generic character, those neglected qualities, will of course draw to them attention, which they could not otherwise have obtained; and, the more various the views are, which we take of the objects of any science, the juster consequently, because the more equal, will be the estimate which we form of them. ”

“ If the first broad outline of classification is made clear and simple, expressed in ordinary English words used in their natural sense, study and experience will presently show the worker the need for a fuller nomenclature, and he will welcome the technical words—life-casket, husk-myth, cumulative tale, and so forth—as he becomes acquainted with the ideas or the things they have been formed to describe. ”

“ Throughout, however, there must necessarily exist a certain classification of things according to their properties—a classification which is either organically registered in the system, as in the inferior creation, or is formed by experience, as in ourselves. ”

“ It will be convenient at this point to digress somewhat for a moment to consider a question of some psychological interest. When we say that two “contents” are similar, and when too they admit of analysis, we can, if need be, enumerate certain elements as the ground of their partial likeness, and certain others as the ground of their partial diversity. We may further say that, abstracting from these last, we can regard the points of resemblance as constituting a general class to which the two contents belong as specific instances. ”

“ It is manifest that the sum of human knowledge in all its departments and ramifications can be arranged in a variety of ways, and that all kinds of methods of classification can be devised to suit the basis selected, be it supernatural, physical, ethnological, philosophical, historical or other. ”

“ The moment a quality has been distinguished in a fact that fact has been fitted into a class, the class which consists of all the facts in which that quality can be distinguished. Thus, in our original illustration, when you first distinguished warmth, etc., you were beginning to fit your fact into classes: when you perceived warmth you fitted it into the class of warm objects, and it was the same with the other qualities of roughness, size and smell. ”

“ But if we contemplate any one of the classes so formed, such as the class animal or plant, or the class sulphur or phosphorus, or the class white or red, and consider in what particulars the individuals included in the class differ from those which do not come within it, we find a very remarkable diversity in this respect between some classes and others. There are some classes, the things contained in which differ from other things only in certain particulars which may be numbered, while others differ in more than can be numbered, more even than we need ever expect to know. ”

“ At this preliminary stage, however, though we concentrate our attention on the quality, we still remain aware of the whole fact in which the quality has its setting. Classification carries the work of limitation a stage further. “Things” are a stage further removed from actual fact than qualities are since, while qualities are classes of facts, “things” are only classes of qualities. ”