Type (category)

“ 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. ”

“ To ask if a category is true or not, must sound strange to the ordinary mind: for a category apparently becomes true only when it is applied to a given object, and apart from this application it would seem meaningless to inquire into its truth. ”

“ But when we have inveighed as much as we need against the dangers of classification, we must swing round to the first statement that for unifying the character and giving it fundamental significance such classification is of great importance.
Merely to find the type to which a character belongs is not sufficient; such a process leaves the character stamped, to be sure, but without interest. We care for living people not chiefly because of their type but because of their individuality, the little traits that set them apart from their fellows. ”

“ 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. ”

“ With this explanation, therefore, of the famous categories, I shall close my slight sketch of the system. Has the reader ever considered the meaning of the term Category—a term so ancient and so venerable from its connexion with the most domineering philosophy that has yet appeared amongst men? The doctrine of the Categories (or, in its Roman appellation, of the Predicaments) is one of the few wrecks from the Peripatetic philosophy which still survives as a doctrine taught by public authority in the most ancient academic institutions of Europe. ”

“ As the definition implies, analogy involves an extensive use of types; let us, therefore, become better acquainted with them as instruments in analogical inductions. A type is one of a group which embodies the essential characteristics of that group. How easy and natural it is to dismiss a complex topic with the citing of an example which may be regarded as a type; how common is the use of examples in the school room! On second thought it becomes apparent that analogical induction by example or type is the most common of all forms of induction either as a method or a mode of inference. ”

“ A type is an example of any class—for instance, a species of a genus—which is considered as eminently possessing the characters of the class. All the species which have a greater affinity with this type-species than with any others form the genus, and are ranged about it, deviating from it in various directions and different degrees."—Philosophy of the Inductive Sciences, vol. ”

“ We pick up a book; we notice the type and paper. Do we know all the crude attempts by means of hieroglyphics to communicate thought? Do we know the history of the first attempts at making type? Do we know all the processes in the manufacture of the type before us? ”

“ While the ideal type is adhered to, and a morphological unity may be proved, yet there is an orderly and beautiful gradation, in which each form becomes more complicated than the form which precedes it. ”

“ From particular types we rise to the notion of general types, which are likewise only probabilities, going up gradually to historical, prehistorical, and Quaternary types, and, by inductive constitution, to primitive types. Hence the necessity of a classification of types; or, to use the current erroneous language, of races. Every anthropologist has his classification. ”

“ Now, however, when it is known that a class, a universal, a genus or species, is not an entity _per se_, but neither more nor less than the individual substances themselves which are placed in the class, and that there is nothing real in the matter except those objects, a common name given to them, and common attributes indicated by the name; what, I should be glad to know, do we learn by being told, that whatever can be affirmed of a class, may be affirmed of every object contained in the class? ”

“ Ordinary type is the result of an attempt to combine with legibility an all-round fitness of expression. But that very universality robs it of special appropriateness for works of a strongly marked character. It is impossible to have a new type designed for every new work, but classes of types are feasible, each adapted to a special class of literature. ”

“ They are real generalisations, because they include the whole of the material under consideration. The blur of their outlines, which is never great in truly generic composites, except in unimportant details, measures the tendency of individuals to deviate from the central type. ”

“ Each category, or determination, is a general principle by which we seek to make experience a consistent whole and render it a concrete universal; and each has its own way of relating the two root factors, viz., unity and difference. ”

“ 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. ”

“ From the application of the term to the natural disposition or characteristic which marks the class to which an object belongs, the general and most common meaning of “class,” genus or species easily develops; that of race, natural order or group, is particularly seen in such expressions as “mankind.” The phrase “payment in kind,” i.e. in goods or produce as distinguished from money, is used as equivalent to the Latin in specie ”

“ 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. ”

“ 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. ”

“ 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. ”

“ At the root of every good definition is still the accurate statement of genus and differentia. It is chiefly of the second kind that we shall treat here. If you can write a definition that is pleasing and stimulating and also accurate, you can always boil it down into the more bald formal statement such as the dictionary offers. Whatever powers of grace or neatness in expression you possess, whatever powers of saying things in a pleasing manner, it is your privilege to employ in the writing of definitions. ”

“ 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 ”

“ That when a word admits of a variety of significations, these different significations must all be species of the same genus, and must consequently include some essential idea common to every individual to which the generic term can be applied. ”

“ And as there is one general form, which, as I have said, belongs to the human kind at large, so in each of these classes there is one common idea which is the abstract of the various individual forms belonging to that class. ”

“ The hierarchy of concepts formed by superposition of abstractions and generalisations only facilitates the task. The sole incontestable value that can be assigned to any notion of species, and still more to genus, and other still more general concepts, is that of utility. ”

“ Whatever proposition we like to take may be read either in extension or in intension, according as we fix our minds on the fact of inclusion in a class or the fact of the possession of attributes.
§ 333. It will be seen that the term 'species,' as it appears in the scheme, has a wholly different meaning from the current acceptation in which it was defined above. Species, in its now accepted meaning, signifies the relation of a smaller class to a larger one: as it was originally intended in the heads of predicables it signifies a class in reference to individuals. ”

“ We frequently hear the expression to specify. A man specifies his grievances. What does it mean? The mediæval Latin specificus is a literal translation of the Greek eidopoios. This means what makes or constitutes an eidos or species. Now, in classification, what constitutes a species is that particular quality which, superadded to other qualities, shared in common by all the members of a genus, distinguishes one class from all other classes. Thus the specific character which distinguishes man from all other animals, is reason or language. ”

“ As individuals by their resemblances form Kinds, so kinds of things, though different, may resemble each other so as to be again associated in a higher Class; and there may be several successive steps of such classification. Man, horse, tree, stone, are each a name of a Kind; but animal includes the two first and excludes the others; living thing is a term which includes animal and tree but not stone; body includes all the four. And such a subordination of kinds may be traced very widely in the arrangements of language. ”

“ To these are added, as a sort of appendix, such other species, generally in small number, as possess nearly all the properties selected; wanting some of them one property, some another, and which, while they agree with the rest almost as much as these agree with one another, do not resemble in an equal degree any other group. Our conception of the class continues to be grounded on the characters; and the class might be defined, those things which either possess that set of characters, or resemble the things that do so, more than they resemble any thing else. ”

“ As we do not think in generals, but in particulars—as whenever any class of things is referred to, we represent it to ourselves by calling to mind individual members of it, it follows that when an abstract word is used, the hearer or reader has to choose, from his stock of images, one or more by which he may figure to himself the genus mentioned. ”

“ The second kind of imperfect definition, therefore, in which the name of a class is defined by any of its accidents,—that is, by attributes which are not included in its connotation,—has been rejected from the rank of genuine Definition by all logicians, and has been termed Description. ”

“ I. The words of the Qurán are divided into four classes.
1. Kháss, or special words. These are sub-divided into three classes. First, words which relate to genus, e.g. mankind. Secondly, words which relate to species, e.g. a man, which refers to men as distinguished from women. Thirdly, words which relate to special individuality, e.g. Zeid, which is the name of a special individual. ”

“ Propositions, therefore, in which objects are referred to a class because they possess the attributes constituting the class, are so far from asserting nothing but resemblance, that they do not, properly speaking, assert resemblance at all. ”

“ Any conspicuous and easily discriminated property which we thus select for the purpose of deciding to which class an object belongs, may be called a characteristic. The logical conditions of a good characteristic mark are very simple, namely, that it should be possessed by all objects entering into a certain class, and by none others. Every characteristic should enable us to assert a simple identity; if A is a characteristic, and B, viewed intensively, the class of objects of which it is the mark, then A = B ought to be true. ”

“ In cases of this sort, the writer should go farther toward the more general until he finds a term perfectly clear to all. “Man is an animal that reasons,” “botany is the branch of science that treats of plant life,” would both be easily understood. The genus should be a term better understood than the term defined; and it should be a term more general than the term defined.
93 A definition may be faulty in its differentia also. The differentia is that part of a definition which names the difference between the term defined and the general class to which it belongs. “Man is a reasoning animal.” ”