Part 1
Transcriber's note:
1. Text enclosed by underscores is in italics (_italics_).
2. In the mathematical expressions in this text the carat character represents 'raised to the power' (example: 1+3=2^2).
3. The original text includes Greek characters. For this text file version these letters have been replaced with their transliterations, with the exception of Greek letter 'pi' which is represented as [pi].
STUDIES IN LOGICAL THEORY
by
JOHN DEWEY
Professor of Philosophy
With the Co-Operation of Members and Fellows of the Department of Philosophy
The Decennial Publications Second Series Volume Xi
Chicago The University of Chicago Press 1903
Copyright, 1903 By the University of Chicago
PREFACE
This volume presents some results of the work done in the matter of logical theory in the Department of Philosophy of the University of Chicago in the first decade of its existence. The eleven Studies are the work of eight different hands, all, with the exception of the editor, having at some period held Fellowships in this University, Dr. Heidel in Greek, the others in Philosophy. Their names and present pursuits are indicated in the Table of Contents. The editor has occasionally, though rarely, added a footnote or phrase which might serve to connect one Study more closely with another. The pages in the discussion of Hypothesis, on Mill and Whewell, are by him. With these exceptions, each writer is individually and completely responsible for his own Study.
The various Studies present, the editor believes, about the relative amount of agreement and disagreement that is natural in view of the conditions of their origin. The various writers have been in contact with one another in Seminars and lecture courses in pursuit of the same topics, and have had to do with shaping one another's views. There are several others, not represented in this volume, who have also participated in the evolution of the point of view herein set forth, and to whom the writers acknowledge their indebtedness. The disagreements proceed from the diversity of interests with which the different writers approach the logical topic; and from the fact that the point of view in question is still (happily) developing and showing no signs of becoming a closed system.
If the Studies themselves do not give a fair notion of the nature and degree of the harmony in the different writers' methods, a preface is not likely to succeed in so doing. A few words may be in place, however, about a matter repeatedly touched upon, but nowhere consecutively elaborated--the more ultimate philosophical bearing of what is set forth. All agree, the editor takes the liberty of saying, that judgment is the central function of knowing, and hence affords the central problem of logic; that since the act of knowing is intimately and indissolubly connected with the like yet diverse functions of affection, appreciation, and practice, it only distorts results reached to treat knowing as a self-inclosed and self-explanatory whole--hence the intimate connections of logical theory with functional psychology; that since knowledge appears as a function within experience, and yet passes judgment upon both the processes and contents of other functions, its work and aim must be distinctively reconstructive or transformatory; that since Reality must be defined in terms of experience, judgment appears accordingly as the medium through which the consciously effected evolution of Reality goes on; that there is no reasonable standard of truth (or of success of the knowing function) in general, except upon the postulate that Reality is thus dynamic or self-evolving, and, in particular, except through reference to the specific offices which knowing is called upon to perform in readjusting and expanding the means and ends of life. And all agree that this conception gives the only promising basis upon which the working methods of science, and the proper demands of the moral life, may co-operate. All this, doubtless, does not take us very far on the road to detailed conclusions, but it is better, perhaps, to get started in the right direction than to be so definite as to erect a dead-wall in the way of farther movement of thought.
In general, the obligations in logical matters of the writers are roughly commensurate with the direction of their criticisms. Upon the whole, most is due to those whose views are most sharply opposed. To Mill, Lotze, Bosanquet, and Bradley the writers then owe special indebtedness. The editor acknowledges personal indebtedness to his present colleagues, particularly to Mr. George H. Mead, in the Faculty of Philosophy, and to a former colleague, Dr. Alfred H. Lloyd, of the University of Michigan. For both inspiration and the forging of the tools with which the writers have worked there is a pre-eminent obligation on the part of all of us to William James, of Harvard University, who, we hope, will accept this acknowledgment and this book as unworthy tokens of a regard and an admiration that are coequal.
TABLE OF CONTENTS
I. Thought and its Subject-Matter 1
By JOHN DEWEY
II. Thought and its Subject-Matter: The Antecedents of Thought 23
By JOHN DEWEY
III. Thought and its Subject-Matter: The Datum of Thinking 49
By JOHN DEWEY
IV. Thought and its Subject-Matter: The Content and Object of Thought 65
By JOHN DEWEY
V. Bosanquet's Theory of Judgment 86
By HELEN BRADFORD THOMPSON, Ph.D., Director of the Psychological Laboratory of Mount Holyoke College
VI. Typical Stages in the Development of Judgment 127
By SIMON FRASER MCLENNAN, Ph.D., Professor of Philosophy in Oberlin College
VII. The Nature of Hypothesis 142
By MYRON LUCIUS ASHLEY, Ph.D., Instructor, American Correspondence School
VIII. Image and Idea in Logic 183
By WILLARD CLARK GORE, Ph.D., Assistant Professor of Psychology in the University of Chicago
IX. The Logic of the Pre-Socratic Philosophy 203
By WILLIAM ARTHUR HEIDEL, Ph.D., Professor of Latin in Iowa College
X. Valuation as a Logical Process 227
By HENRY WALDGRAVE STUART, Ph.D., Instructor in Philosophy in the State University of Iowa
XI. Some Logical Aspects of Purpose 341
By ADDISON WEBSTER MOORE, Ph.D., Assistant Professor of Philosophy in the University of Chicago
I
THOUGHT AND ITS SUBJECT-MATTER: THE GENERAL PROBLEM OF LOGICAL THEORY
No one doubts that thought, at least reflective, as distinct from what is sometimes called constitutive, thought, is derivative and secondary. It comes after something and out of something, and for the sake of something. No one doubts that the thinking of everyday practical life and of science is of this reflective type. We think about; we reflect over. If we ask what it is which is primary and radical to thought; if we ask what is the final objective for the sake of which thought intervenes; if we ask in what sense we are to understand thought as a derived procedure, we are plunging ourselves into the very heart of the logical problem: the relation of thought to its empirical antecedents and to its consequent, truth, and the relation of truth to reality.
Yet from the naïve point of view no difficulty attaches to these questions. The antecedents of thought are our universe of life and love; of appreciation and struggle. We think about anything and everything: snow on the ground; the alternating clanks and thuds that rise from below; the relation of the Monroe Doctrine to the embroglio in Venezuela; the relation of art to industry; the poetic quality of a painting by Botticelli; the battle of Marathon; the economic interpretation of history; the proper definition of cause; the best method of reducing expenses; whether and how to renew the ties of a broken friendship; the interpretation of an equation in hydrodynamics; etc.
Through the madness of this miscellaneous citation there appears so much of method: anything--event, act, value, ideal, person, or place--may be an object of thought. Reflection busies itself alike with physical nature, the record of social achievement, and the endeavors of social aspiration. It is with reference to _such_ affairs that thought is derivative; it is with reference to them that it intervenes or mediates. Taking some part of the universe of action, of affection, of social construction, under its special charge, and having busied itself therewith sufficiently to meet the special difficulty presented, thought releases that topic and enters upon further more direct experience.
Sticking for a moment to this naïve standpoint, we recognize a certain rhythm of direct practice and derived theory; of primary construction and of secondary criticism; of living appreciation and of abstract description; of active endeavor and of pale reflection. We find that every more direct primary attitude passes upon occasion into its secondary deliberative and discursive counterpart. We find that when the latter has done its work it passes away and passes on. From the naïve standpoint such rhythm is taken as a matter of course. There is no attempt to state either the nature of the occasion which demands the thinking attitude, nor to formulate a theory of the standard by which is judged its success. No general theory is propounded as to the exact relationship between thinking and what antecedes and succeeds it. Much less do we ask how empirical circumstances can generate rationality of thought; nor how it is possible for reflection to lay claim to power of determining truth and thereby of constructing further reality.
If we were to ask the thinking of naïve life to present, with a minimum of theoretical elaboration, its conception of its own practice, we should get an answer running not unlike this: Thinking is a kind of activity which we perform at specific need, just as at other need we engage in other sorts of activity: as converse with a friend; draw a plan for a house; take a walk; eat a dinner; purchase a suit of clothes; etc., etc. In general, its material is anything in the wide universe which seems to be relevant to this need--anything which may serve as a resource in defining the difficulty or in suggesting modes of dealing effectively with it. The measure of its success, the standard of its validity, is precisely the degree in which the thinking actually disposes of the difficulty and allows us to proceed with more direct modes of experiencing, that are forthwith possessed of more assured and deepened value.
If we inquire why the naïve attitude does not go on to elaborate these implications of its own practice into a systematic theory, the answer, on its own basis, is obvious. Thought arises in response to its own occasion. And this occasion is so exacting that there is time, as there is need, only to do the thinking which is needed in that occasion--not to reflect upon the thinking itself. Reflection follows so naturally upon its appropriate cue, its issue is so obvious, so practical, the entire relationship is so organic, that once grant the position that thought arises in reaction to specific demand, and there is not the particular type of thinking called logical theory because there is not the practical demand for reflection of that sort. Our attention is taken up with particular questions and specific answers. What we have to reckon with is not the problem of, How can I think _überhaupt_? but, How shall I think right _here and now_? Not what is the test of thought at large, but what validates and confirms _this_ thought?
In conformity with this view, it follows that a generic account of our thinking behavior, the generic account termed logical theory, arises at historic periods in which the situation has lost the organic character above described. The general theory of reflection, as over against its concrete exercise, appears when occasions for reflection are so overwhelming and so mutually conflicting that specific adequate response in thought is blocked. Again, it shows itself when practical affairs are so multifarious, complicated, and remote from control that thinking is held off from successful passage into them.
Anyhow (sticking to the naïve standpoint), it is true that the stimulus to that particular form of reflective thinking termed logical theory is found when circumstances require the act of thinking and nevertheless impede clear and coherent thinking in detail; or when they occasion thought and then prevent the results of thinking from exercising directive influence upon the immediate concerns of life. Under these conditions we get such questions as the following: What is the relation of rational thought to crude or unreflective experience? What is the relation of thought to reality? What is the barrier which prevents reason from complete penetration into the world of truth? What is it that makes us live alternately in a concrete world of experience in which thought as such finds not satisfaction, and in a world of ordered thought which is yet only abstract and ideal?
It is not my intention here to pursue the line of historical inquiry thus suggested. Indeed, the point would not be mentioned did it not serve to fix attention upon the nature of the logical problem.
It is in dealing with this latter type of questions that logical theory has taken a turn which separates it widely from the theoretical implications of practical deliberation and of scientific research. The two latter, however much they differ from each other in detail, agree in a fundamental principle. They both assume that every reflective problem and operation arises with reference to some _specific_ situation, and has to subserve a _specific_ purpose dependent upon its own occasion. They assume and observe distinct limits--limits from which and to which. There is the limit of origin in the needs of the particular situation which evokes reflection. There is the limit of terminus in successful dealing with the particular problem presented--or in retiring, baffled, to take up some other question. The query that at once faces us regarding the nature of logical theory is whether reflection upon reflection shall recognize these limits, endeavoring to formulate them more exactly and to define their relationships to each other more adequately; or shall it abolish limits, do away with the matter of specific conditions and specific aims of thought, and discuss thought and its relation to empirical antecedents and rational consequents (truth) at large?
At first blush, it might seem as if the very nature of logical theory as generalization of the reflective process must of necessity disregard the matter of particular conditions and particular results as irrelevant. How, the implication runs, could reflection become generalized save by elimination of details as irrelevant? Such a conception in fixing the central problem of logic fixes once for all its future career and material. The essential business of logic is henceforth to discuss the relation of thought as such to reality as such. It may, indeed, involve much psychological material, particularly in the discussion of the processes which antecede thinking and which call it out. It may involve much discussion of the concrete methods of investigation and verification employed in the various sciences. It may busily concern itself with the differentiation of various types and forms of thought--different modes of conceiving, various conformations of judgment, various types of inferential reasoning. But it concerns itself with any and all of these three fields, not on their own account or as ultimate, but as subsidiary to the main problem: the relation of thought as such, or at large, to reality as such, or at large. Some of the detailed considerations referred to may throw light upon the terms under which thought transacts its business with reality; upon, say, certain peculiar limitations it has to submit to as best it may. Other considerations throw light upon the ways in which thought gets at reality. Still other considerations throw light upon the forms which thought assumes in attacking and apprehending reality. But in the end all this is incidental. In the end the one problem holds: How do the specifications of thought as such hold good of reality as such? In fine, logic is supposed to grow out of the epistemological inquiry and to lead up to its solution.
From this point of view various aspects of logical theory are well stated by an author whom later on we shall consider in some detail. Lotze[1] refers to "universal forms and principles of thought which hold good everywhere both in judging of reality and in weighing possibility, _irrespective of any difference in the objects_." This defines the business of _pure_ logic. This is clearly the question of thought as such--of thought at large or in general. Then we have the question "of how far the most complete structure of thought ... can claim to be an adequate account of that which we seem compelled to assume as the object and occasion of our ideas." This is clearly the question of the relation of thought at large to reality at large. It is epistemology. Then comes "applied logic," having to do with the actual employment of concrete forms of thought with reference to investigation of specific topics and subjects. This "applied" logic would, if the standpoint of practical deliberation and of scientific research were adopted, be the sole genuine logic. But the existence of thought _in itself_ having been agreed upon, we have in this "applied" logic only an incidental inquiry of how the particular resistances and oppositions which "pure" thought meets from particular matters may best be discounted. It is concerned with methods of investigation which obviate defects in the relationship of thought at large to reality at large, as these present themselves under the limitations of human experience. It deals merely with hindrances, and with devices for overcoming them; it is directed by considerations of utility. When we reflect that this field includes the entire procedure of practical deliberation and of concrete scientific research, we begin to realize something of the significance of the theory of logic which regards the limitations of specific origination and specific outcome as irrelevant to its main problem, which assumes an activity of thought "pure" or "in itself," that is, "irrespective of any difference in its objects."
This suggests, by contrast, the opposite mode of stating the problem of logical theory. Generalization of the nature of the reflective process certainly involves elimination of much of the specific material and contents of the thought-situations of daily life and of critical science. Quite compatible with this, however, is the notion that it seizes upon _certain_ specific conditions and factors, and aims to bring them to clear consciousness--not to abolish them. While eliminating the particular material of particular practical and scientific pursuits, (1) it may strive to hit upon the common denominator in the various situations which are antecedent or primary to thought and which evoke it; (2) it may attempt to show how typical features in the specific antecedents of thought call out to diverse typical modes of thought-reaction; (3) it may attempt to state the nature of the specific consequences in which thought fulfils its career.
(1) It does not eliminate dependence upon specific occasions as provocative of thought; but endeavors to define _what_ in the various situations constitutes them thought-provoking. The specific occasion is not eliminated, but insisted upon and brought into the foreground. Consequently psychological considerations are not subsidiary incidents, but of essential importance so far as they enable us to trace the generation of the thought-situation. (2) So from this point of view the various types and modes of conceiving, judging, and inference are treated, not as qualifications of thought per se or at large, but of thought engaged in its specific, most economic, effective response to its own particular occasion; they are adaptations for control of stimuli. The distinctions and classifications that have been accumulated in "formal" logic are relevant data; but they demand interpretation from the standpoint of use as organs of adjustment to material antecedents and stimuli. (3) Finally the question of validity, or ultimate objective of thought, is relevant; but is such as a matter of the specific issue of the specific career of a thought-function. All the typical investigatory and verificatory procedures of the various sciences are inherently concerned as indicating the ways in which thought actually brings itself to its own successful fulfilment in dealing with various types of problems.
While the epistemological type of logic may, as we have seen, leave (under the name of applied logic), a subsidiary place open for the instrumental type, the type which deals with thinking as a specific procedure relative to a specific antecedent occasion and to a subsequent specific fulfilment, is not able to reciprocate the favor. From its point of view, an attempt to discuss the antecedents, data, forms, and objective of thought, apart from reference to particular position occupied, and particular part played in the growth of experience is to reach results which are not so much either true or false as they are radically meaningless--because they are considered apart from limits. Its results are not only abstractions (for all theorizing ends in abstractions), but abstractions without possible reference or bearing. From this point of view, the taking of something, whether that something be thinking activity, its empirical condition, or its objective goal, apart from the limits of a historic or developing situation, is the essence of _metaphysical_ procedure--in the sense of metaphysics which makes a gulf between it and science.
As the reader has doubtless anticipated, it is the object of this chapter to present the problem and industry of reflective thought from this latter point of view. I recur again to the standpoint of naïve experience, using the term in a sense wide enough to cover both practical procedure and concrete scientific research. I resume by saying that this point of view knows no fixed distinction between the empirical values of unreflective life and the most abstract process of rational thought. It knows no fixed gulf between the highest flight of theory and control of the details of practical construction and behavior. It passes, according to the occasion and opportunity of the moment, from the attitude of loving and struggling and doing to that of thinking and the reverse. Its contents or material shift their values back and forth from technological or utilitarian to æsthetic, ethic, or affectional. It utilizes data of perception or of discursive ideation as need calls, just as an inventor now utilizes heat, now mechanical strain, now electricity, according to the demands set by his aim. From this point of view, more definite logical import is attached to our earlier statements (p. 2) regarding the possibility of taking anything in the universe of experience as subject-matter of thought. Anything from past experience may be taken which appears to be an element in either the statement or the solution of the present problem. Thus we understand the coexistence without contradiction of an indeterminate possible field and a limited actual field. The undefined set of means becomes specific through reference to an end.