In lieu of an abstract, here is a brief excerpt of the content:119. THE IMPORT OF HUME'S THEORY OF TIME In this paper I examine the significance of Hume's theory of time for some of the more famous of the doctrines in the Treatise, and how it works as a basis for his peculiar brand of scepticism, a basis that is at least as important in this regard as his principle that all ideas are derived from some original impression. To (...) bring into relief some of the peculiarities of Hume's theory of time we may observe that it was not uncommon in the seventeenth and eighteenth centuries to distinguish between space and extension and between time and duration, to say, as does for example Leibniz, that "in some way extension is to space as duration is to time", and perhaps also to agree with him "that duration and extension are attributes of things, but time and space are taken to be something outside of things and serve to measure them. " Duration taken as an attribute of things or substantives connotes the permanence, or perseverance, or continuation of the existence of such substantives. Thus Descartes says, "the duration of each thing is a mode [he subsequently calls it an 'attribute'] under which we consider the thing in so far as it continues to exist" (French version) or "perseveres 2 in existence" (Latin version). Or Spinoza: "Duration is the attribute under which we conceive the existence of created things in so far as they persevere in their own 3 actuality". But though duration refers to things as persevering or continuing in existence, it applies equally, as Descartes indicates, to both changing and unchanging things. In order to comprehend the duration of all things under the same measure we usually compare their duration with the duration of the greatest and most regular motions, which are those which create years and days, and these we call time.4 Spinoza's account of duration and time are much the same. Duration is the primary notion and time presupposes it. Going beyond Hume to Kant we find that in distinguishing 120. three modes of time, namely duration, succession and coexistence, Kant argues that succession presupposes duration and that all time determinations of change (or succession) presuppose substance as that which is permanent or continuant through change. In Hume, however, we find no distinction between space and extension, nor between time and duration. These are merely two pairs of synonyms. In the case of space Hume seems to prefer on the whole to talk about extension, probably because extension lends itself more easily to discussion of divisibility. In the case of time, however, which he, defines as succession, he is indeed aware of the view which we have just been considering, according to which duration is referred primarily to an object qua con-. tinuing or persevering or enduring, whether or not undergoing successive changes. This concept of duration, he says, I take to be the common opinion of philosophers as well as of the vulgar. (T37) Duration in this common philosophical and vulgar sense is not a synonym of Humean time or succession, and it is for Hume, a "fiction", something falsely attributed to objects. Why is this so? 'Tis evident, that time or duration [Hume is here taking the two terms as synonyms] consists of different parts... 'Tis also evident, that these parts are not co-existent: For that quality of the co-existence of parts belongs to extension, and is what distinguishes it from duration. Now as time is compos 'd of parts, that are not co-existent; an unchangeable object, since it produces none but co-existent impressions, produces none that can give us the idea of time; and consequently that idea must be deriv'd from a succession of changeable objects, and time in its first appearance can never be sever 'd from such a succession (T35,36) Although Hume maintains that there is no idea which is not derived from some original impression, it would appear that this is not strictly so with the idea of time [or, for that matter with the idea of space]. Rather time is the manner or way in which impressions appear to the mind, namely... (shrink)

The author has taken an important subject, one which has pervaded the thinking of scientists, philosophers, and historians, and with impeccable scholarship and great clarity has concerned himself with a specific aspect of it: the way in which the determination of how the unity of the sciences is to be conceived presented itself to philosophers as a specifically philosophical or logical problem. The study is not, therefore, an essay in the history of ideas showing the idea of unity at work (...) in many cultural contexts, or in the history of the classification fo the sciences; nor does it discuss philosophers who suppose a unity but do not discuss it. Rather it is an exposition of what is directly said on the subject of unity by a number of philosphers who view it in their different ways as a problem for solving. Those chosen for discussion belong to the classical period of modern philosophy, the seventeenth and eighteenth centuries, and chapters take up the contributions of Bacon, Descartes, Leibniz, Condillac, Diderot and D'Alembert, and Kant. This will be an important book for students and teachers in the history of philosophy, of science, of ideas; and will also be useful to students of English and French literature in the period it covers. (shrink)

Sixteen essays on epistemology, metaphysics, & history & politics, treating aspects of the writings of Descartes, Locke, Hume, Kant, Leibniz, & Hobbes.

INTRODUCTION I have purposely limited myself to a rather brief statement in this introduction, in order that the summing up be not misrepresented for the ...

In lieu of an abstract, here is a brief excerpt of the content:150 PERCEPTIONS, OBJECTS AND THE NATURE OF MIND In this paper I consider the relation between perceptions and objects for Hume and the bearing which this has on his conception of the mind as composed of perceptions. But first it is necessary to distinguish at least two senses in which he uses the term 'object'. In the first, "perceptions of the human mind" — both impressions and ideas — (...) are referred to as "our objects" (T 1,2). Objects in this sense are intentional objects. Hume almost consistently uses the noun 'perception', rarely the verb 'to perceive'. This serves to emphasize that for him perception is an object, not the perceiving of an object — a departure from the tradition of Locke and Berkeley for whom perceptions are cognitive acts having objects. That perception is not conceived by Hume as a cognitive act or form of awareness but purely as an object of awareness is evident when he says, For since all actions and sensations of the mind are known to us by consciousness, they must necessarily appear in every particular what they are, and be what they appear. Everything that enters the mind, being in reality a perception, 'tis impossible anything shou'd to feeling appear different. This were to suppose, that even when we are most intimately conscious, we might be mistaken (T 190). 1 Or again, "The only existences, of which we are certain, are perceptions, which being immediately present to us by consciousness, command our strongest assent...." (T 212). In its other sense the term 'object' is used to denote bodies, or that to which we attribute a continued existence "distinct from the mind and perception", or, borrowing Locke's expression "external 151 objects". It is just because we attribute a continued and independent existence to bodies that we distinguish them from perceptions, for "all impressions are internal and perishing existences, and appear as such" (T 194). But while we make this distinction in our everyday role of common man, the difference between a perception and an (external) object is really only a difference between two types of perceptions, on the one hand those that are characterized in their occurrence by constancy and coherence, and on the other those, for example the passions, which exhibit a different type of "regularity" in their occurrence (T 195). The constancy and coherence which some perceptions exhibit, together with a natural tendency of the mind "to bestow on the objects a greater regularity than what is observ'd in our mere perceptions" (T 197) causes us to attribute to these perceptions an uninterrupted and independent existence, an existence which is, of course, fictitious, because all perceptions are really internal and perishing. 'Tis certain, that almost all mankind, and even philosophers themselves, for the greatest part of their lives, take their perceptions to be their only objects, and suppose, that the very being, which is intimately present to the mind, is the real body or material existence (T 206). This is not to say, however, that "what any common man means by a hat, or shoe, or stone" (T 202) he also believes to be a perception. What he does believe is that the hat or the shoe is immediately present to the mind, or directly appears to his consciousness. It is Hume, the philosopher, who is here interposing the philosophical doctrine that "no beings are ever present to the mind but perceptions" (T 212). This is, of course, not an empirical generalization. It is the definition of a perception as "whatever can be present 152 to the mind" (Abstract 647). It is this definition which gives sense to the statement "their perceptions are their only objects", the term "objects" here referring to "external objects". And the common man would, no doubt, be surprised to learn that these hats, shoes, etc., which directly appear to his consciousness, are by that circumstance really only his own perceptions which he has imagined, falsely, to have a continued and independent existence. Only a few experiments, however, are needed for the philosopher to realize that perceptions, i.e., what is present to the mind, do not have a continued and independent existence. Unable to give up his vulgar... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:150 PERCEPTIONS, OBJECTS AND THE NATURE OF MIND In this paper I consider the relation between perceptions and objects for Hume and the bearing which this has on his conception of the mind as composed of perceptions. But first it is necessary to distinguish at least two senses in which he uses the term 'object'. In the first, "perceptions of the human mind" — both impressions and ideas — (...) are referred to as "our objects" (T 1,2). Objects in this sense are intentional objects. Hume almost consistently uses the noun 'perception', rarely the verb 'to perceive'. This serves to emphasize that for him perception is an object, not the perceiving of an object — a departure from the tradition of Locke and Berkeley for whom perceptions are cognitive acts having objects. That perception is not conceived by Hume as a cognitive act or form of awareness but purely as an object of awareness is evident when he says, For since all actions and sensations of the mind are known to us by consciousness, they must necessarily appear in every particular what they are, and be what they appear. Everything that enters the mind, being in reality a perception, 'tis impossible anything shou'd to feeling appear different. This were to suppose, that even when we are most intimately conscious, we might be mistaken (T 190). 1 Or again, "The only existences, of which we are certain, are perceptions, which being immediately present to us by consciousness, command our strongest assent...." (T 212). In its other sense the term 'object' is used to denote bodies, or that to which we attribute a continued existence "distinct from the mind and perception", or, borrowing Locke's expression "external 151 objects". It is just because we attribute a continued and independent existence to bodies that we distinguish them from perceptions, for "all impressions are internal and perishing existences, and appear as such" (T 194). But while we make this distinction in our everyday role of common man, the difference between a perception and an (external) object is really only a difference between two types of perceptions, on the one hand those that are characterized in their occurrence by constancy and coherence, and on the other those, for example the passions, which exhibit a different type of "regularity" in their occurrence (T 195). The constancy and coherence which some perceptions exhibit, together with a natural tendency of the mind "to bestow on the objects a greater regularity than what is observ'd in our mere perceptions" (T 197) causes us to attribute to these perceptions an uninterrupted and independent existence, an existence which is, of course, fictitious, because all perceptions are really internal and perishing. 'Tis certain, that almost all mankind, and even philosophers themselves, for the greatest part of their lives, take their perceptions to be their only objects, and suppose, that the very being, which is intimately present to the mind, is the real body or material existence (T 206). This is not to say, however, that "what any common man means by a hat, or shoe, or stone" (T 202) he also believes to be a perception. What he does believe is that the hat or the shoe is immediately present to the mind, or directly appears to his consciousness. It is Hume, the philosopher, who is here interposing the philosophical doctrine that "no beings are ever present to the mind but perceptions" (T 212). This is, of course, not an empirical generalization. It is the definition of a perception as "whatever can be present 152 to the mind" (Abstract 647). It is this definition which gives sense to the statement "their perceptions are their only objects", the term "objects" here referring to "external objects". And the common man would, no doubt, be surprised to learn that these hats, shoes, etc., which directly appear to his consciousness, are by that circumstance really only his own perceptions which he has imagined, falsely, to have a continued and independent existence. Only a few experiments, however, are needed for the philosopher to realize that perceptions, i.e., what is present to the mind, do not have a continued and independent existence. Unable to give up his vulgar... (shrink)

The author looks to "deep structures" or "submerged" models to give insight into Malebranche's thought. He finds two such models: the traditional model of "substance," according to which things are organized in a hierarchy of genera and species, and the model of "number" which emerged in the seventeenth century, and in accordance with which relations are manipulated to establish further relations. The two archetypal concepts, the one old, the other new, create a tension in many areas of thought. This tension (...) is examined first as it occurs in Descartes. With Malebranche the polarity becomes even more evident. The concept of number is at the base primarily of his epistemology and theory of science, that of substance primarily in his metaphysics and theology. The two spheres are however mutually affecting. Arithmetic and algebra provide Malebranche with "the true logic that serves to discover truth and produce in the mind all the extension of which it is capable." Algebra is "the most fruitful and certain of all sciences... with it the mind is capable of knowing all that can be known with certitude and evidence." Accordingly truths will be of the sort found in the relations typified in algebra as opposed to the subject-predicate relation appropriate to an ontology of substances generically conceived. Malebranche's "ideas," taken ontologically, are viewed by him as substantive entities. Epistemologically, however, they have the nature of relations of magnitude. "The order of truths as relations between ideas was equally," says Hobart, "an order of ideas that were themselves relations--in the same way that the relations between numbers were in effect relations between relations 'compounded to infinity'." The traditional concept of substance to which Hobart refers is primarily Platonic, for he says that in accordance with it, "The world of forms... is the truest and hence the most real, contrasting with the perceptible world in which things are not so perfect. This conception of reality enabled and indeed required the gradations of perfection from the perceptible and imperfect to the real and perfect, those infinite qualitative gradations that comprised the existence and plenitude of the great chain of being." Malebranche's attitude to this is seen by the author to be ambiguous. On the one hand, under the influence of the mathematical and relational way of conceiving truth, a true relation is both real and existent, and a false one neither real nor existent. Hence instead of thinking of reality in terms of gradations of qualities, it is taken simply as the existent, and therefore as merely disjunctive with the non-existent. Nothing can be predicated of the non-existent. At the same time Malebranche wants to retain the gradations of perfection. Thus he says, "But one can distinguish in God two kinds of truths or relations: relations of magnitude and relations of perfection," the latter being assigned to the realm of the practical and moral. The final chapter entitled "The Conflict between 'Substance' and 'Number'" is concerned with how this conflict affected Malebranche's understanding of the relation between science and religion. The conflict is described as occurring within the concepts of infinity, necessity and being in their relation to the divine nature. Finally there is the question of the relation of reason and faith, and here Hobart finds that a dual sense of faith and a dual sense of reason compete with one another in Malebranche's thought. This book is a subtle and novel treatment of the great Oratorian.--Robert McRae, University of Toronto. (shrink)