This paper presents a reading of Metaphysics Z.10–11 according to which both chapters outline two main definienda: forms and material substances or compounds, each of which is governed by its own peculiar constraints. Forms include formal parts alone; furthermore, they are the main definable items and enjoy the strictest possible unity. However, this does not preclude Aristotle from upgrading material compounds to the status of definable items in their own right. Z.10 explains this contention by making the (...) compound’s sensible functional matter dependent on its form. This dependence affords the resulting compound an unusually tight form-matter relationship, strong enough to ensure its definability, despite falling short of the highest kind of unity that only forms display. (shrink)

This chapter contains section titled: Our Ontological Commitment to Material Substances The Bundle Theory and the Principle of the Identity of Indiscernibles Problems with the Bundle Theory The Bare Substratum Theory and the Principle of Acquaintance Objections to the Bare Substratum Theory An Alternative.

This paper analyzes the theory of mixtures, material substances and corpuscles put forward by the Portuguese Thomistic philosopher Francisco Soares Lusitano. It has been argued that the incapacity of the Aristotelian-Thomistic tradition to reconcile an Aristotelian theory of mixtures with hylomorphism opened the way to the triumph of atomism in the seventeenth century. By analyzing Soares Lusitano’s theory of mixtures, this paper aims to demonstrate that early modern Thomism not only rendered the Aristotelian notion of elements compatible with (...) the metaphysical bases of hylomorphism, but further incorporated an explanation of physical phenomena based upon the notion that bodies were basically made up of small and subtle corpuscles. By doing so, it shows that, contrary to what is so often claimed, early modern corpuscularism was not intrinsically incompatible with late Aristotelian philosophy. (shrink)

This book offers an original new account of one of Aristotle's central doctrines. Freudenthal He recreates from Aristotle's writings a more complete theory of material substance which is able to explain the problematical areas of the way matter organizes itself and the persistence of matter, to show that the hitherto ignored concept of vital heat is as central in explaining material substance as soul or form.

Fortunately, there is heat; and Freudenthal is keen to promote it as an overlooked central factor in Aristotle’s theory of material substance. He begins in agreement with the many scholars who argue that Aristotle’s theory of the four elements underdetermines the plain fact that there are organic substances which exhibit both synchronic and diachronic unity. He goes further than most, however, by arguing that left unaugmented Aristotle’s account of the four basic elements would positively preclude the existence of (...) these forms of unity. For Aristotle embraces the Presocratic picture of the four elements as engaged in “endemic strife”, so constituted that their natural propensities lead them to separate and dissolve rather than to unite and synthesize. Thus, for example, each of the four elements has a natural direction, which ought to result in fire and air ever moving upward and away from earth and water, which will move downward if unimpeded. Hence, as Aristotle himself recognizes, some agent force is required to hold the four elements together when they are mixed. (shrink)

En _Metaph_. Z17, Aristóteles toma un nuevo punto de partida (1041a6) en su discusión sobre la sustancia: la forma sustancial es principio y causa (1041a6-10, 1041b8), mientras que la mate­ria es un elemento (1041b31) de las sustancias mate­riales. Además, un compromiso de Aristóteles, quizá no totalmente acla­rado en Z17, es que las sustancias materiales son todos unificados (1041b11-12). Éstas son dos tesis centrales de Z17, cuya aparente ausencia en el resu­men de H1 (1042a3-23) ha despertado dudas entre los co­menta­do­res acerca (...) del mismo proyecto de H; un libro que es visto comúnmente como un mero ma­nojo de notas so­bre temas de Z. En cuanto a la con­tribución positiva de H, los comentadores destacan poco más que la in­troducción del vocabu­lario modal de potencia y acto, en el cual se habría traducido la distinción de Z entre ma­teria y forma; y encuentran recién en la solución que H6 (1045a23-25, 1045b18-19) ofrece al pro­blema de la unidad la genuina con­tribución que hace el entero libro H. Como conse­cuencia de esta lectura, H1-5 que­dan a la sombra de H6 y resultan escasamente atendi­dos. En contra de la tendencia todavía predominante a no considerar H1-5 en sí mismos, en este artículo in­tentaré mostrar que esos capítulos desarrollan un pro­grama que prepara adecuada­mente la conclu­sión de H6. H2-3 son la pri­mera gran estación en ese progra­ma; allí Aristóteles justifica la priori­dad de la forma; posteriormente, en H4-5 hace algo similar con la uni­dad de los compues­tos materiales. De tal manera, tra­taré de mostrar que H1-5 constituyen una pieza cen­tral en el acaba­miento de la teoría sobre la sustancia material ini­ciada en Z17. (shrink)

In this paper I present Suárez’s conception on material substance in connection with two main aspects of his theory. The first aspect is “reification” of the intrinsic principles of a composite, which has led some interpreters to the claim that Suárez significantly prepared the way for the accession of Cartesian anthropological dualism. The second one is Suárez’s emphasis on the substantial unity of material composites. The analysis of the second aspect is conceived as a counterbalance to some uncharitable (...) interpretations of Suárez’s hylemorphism. In the second part of the paper the relevance of Suárez’s arguments to contemporary debates on the ontological constitution of individuals is presented. (shrink)

This paper investigates the problem of numerical continuity in thomistic metaphysics and attempts to point out the principle of identity in material substances. it has three parts: the first clarifies the issue and presents the possible alternatives; the second rejects various solutions which have been proposed by interpreters of thomas aquinas such as matter, form, accidents, and substance; and the third part argues that within thomistic metaphysics it is only existence ("esse") that may be considered as an acceptable (...) candidate for this ontological role. (shrink)

A complete reissue of a notable lecture delivered by Broad as the Annual Philosophical Lecture before the Henriette Hertz Trust.

Avicenna’s theory of compounds had virtually no effect on scholastic philosophy. It is always mentioned, indeed, but only to be rejected. At most, one finds that certain thinkers take up this or that particular thought of his; or that, regarding the issue of compounds, the fundamental Averroistic or Thomistic position exhibits a certain Avicennistic tinge. This is particularly the case when it comes to Albertus Magnus, who wants to follow the thoroughly Aristotelian-Averroistic conception, while being convinced that the doctrines of (...) Averroes and Avicenna are fundamentally the same. His judgment agrees above all with that of Averroes. Since one and the same matter cannot receive many substantial forms, one cannot say that the elements in the compound are contained such that the substantial forms are wholly preserved. On the other hand, however, since the properties of the elements are found in the compound body, neither can one say that their substantial forms are in no way preserved. “And for that reason Aristotle said that the intensities of those substantial forms are reduced, and thus that in part they are preserved and in part they are changed: and so all arrive at an intermediate.”. (shrink)

Following in the hylomorphic tradition of Aristotle, Thomas Aquinas holds that all material substances are composed of matter and form. Like Aristotle, Aquinas also recognizes two different types of forms that material substances can be said to possess: substantial forms and accidental forms. Of which form or forms, then, are material substances composed? This paper explores two competing models of Aquinas’s ontology of material substances, which diverge on precisely this issue. According to (...) what the author refers to as the “Standard Model,” Aquinas’s view is that a material substance is composed of prime matter and substantial form. According to the “Expanded Model,” Aquinas’s view is that a material substance is composed of prime matter, substantial form, and all of its accidental forms. After outlining the main claims of each of the two competing models and considering two arguments in favor of the Standard Model, the author offers two arguments in favor of the Expanded Model. He argues that, given the way in which Aquinas argues for God’s simplicity in question three of the Prima pars, and the way in which he consistently describes the difference between an essence and a suppositum, or individual substance, throughout his works, there is good reason to believe that Aquinas thinks that the accidental forms of a material substance are included among its metaphysical parts. (shrink)

Must we choose between reducing material substances to collections of properties, a’ la Berkeley and Hume or positing bare particulars, in the manner of Locke? Having repudiated the notion that a substance could simply be a collection of properties existing on their own, is there a viable alternative to the Lockean notion of a substratum, a being essentially devoid of character? E.J. Lowe and Michael Loux would answer here in the affirmative. Both recommend hylomorphism as an upgrade on (...) the metaphysics of the British empiricists: treating a material substance as its essential 'form,' this embodied 'substance' universal being, in turn, the substratum in which its 'accidents' inhere. Here, I evaluate this Aristotelian metaphysics, identifying the advantages it enjoys over the empiricist's alternatives pertaining to dependence, unity, identity, change, and the distinction between essential and accidental properties. I also develop solutions to the two problems that Loux sees it posing. (shrink)

The introduction to this book begins with the claim that it will provide new perspectives on the relationships between form and matter in Aristotle's thought, identifying as a point of departure the "basic level" where they interact, namely, in the coming-to-be of composite material substances, notably living things, and in their stable persistence, both at the level of the individual and of the species. Central to this interaction, it is claimed, is vital heat, the significance of which has (...) not been fully appreciated. Aristotle nowhere offers a systematic theory of vital heat, but the author attempts to recover such a thing from scattered discussions; in so doing, he argues for its unitary explanatory role in relation to all the soul's functions, makes some suggestions concerning its origin in Presocratic thought, and suggests its likely provenance in Aristotle's early theological cosmology. (shrink)

Many late medieval Aristotelians assumed that a natural substance has several substantial forms in addition to matter as really distinct parts. This assumption gave rise to a unity problem: why is a substance more than a conglomeration of all these parts? This paper discusses Francisco Suárez’s answer. It first shows that he rejected the idea that there is a plurality of forms, emphasizing instead that each substance has a single form and hence a single structuring principle. It then examines his (...) account of the relationship between matter and form. While accepting the thesis that these two parts are really distinct entities, he claimed that there is a special “mode of union” that binds them together. With this account, he defended the essential unity of a natural substance, but he transformed the program of Aristotelian metaphysics: not substances, but entities and modes inside them, are now the basic building blocks of reality. (shrink)

I argue in the paper that classical chemistry is a science predominantly concerned with material substances, both useful materials and pure chemical substances restricted to scientific laboratory studies. The central epistemological and methodological status of material substances corresponds with the material productivity of classical chemistry and its way of producing experimental traces. I further argue that chemist’s ‘pure substances’ have a history, conceptually and materially, and I follow their conceptual history from the Paracelsian (...) concept of purity to the modern concept of pure stoichiometric compounds. The history of the concept of ‘pure substances’ shows that modern chemists’ concept of purity abstracted from usefulness rather than being opposed to it. Thus modern chemists’ interest in pure chemical substances does not presuppose a concept of pure science. (shrink)

In this paper we argue that the problem of the one and the many, as first proposed in the West by Parmenides, can be resolved without recourse to either monism or nominalism by an appeal to distinct though mutually ordered principles of distinction in the realm of material substances, namely that of material individuation, distinction according to form, and supposital distinction. This solution, rooted in St. Thomas Aquinas and St. Albert the Great, maintains that what distinguishes one (...) material substance from any other substance absolutely is the agency of the Divine Intellect. This agency elicits in the created material substance the actuality of the relation of creation, which is the cause or principle that, in inhering in the ens creatum as a property subsisting in it, sustains the material substance in its mode of being as suppositum by formally perfecting its distinction with reference to God the Creator. (shrink)

In this paper we argue that the problem of the one and the many, as first proposed in the West by Parmenides, can be resolved without recourse to either monism or nominalism by an appeal to distinct though mutually ordered principles of distinction in the realm of material substances, namely that of material individuation, distinction according to form, and supposital distinction. This solution, rooted in St. Thomas Aquinas and St. Albert the Great, maintains that what distinguishes one (...) material substance from any other substance absolutely is the agency of the Divine Intellect. This agency elicits in the created material substance the actuality of the relation of creation, which is the cause or principle that, in inhering in the ens creatum as a property subsisting in it, sustains the material substance in its mode of being as suppositum by formally perfecting its distinction with reference to God the Creator. (shrink)

Medieval scholastics share a commitment to a substance-accident ontology and to an analysis of efficient causation in which agents act in virtue of their powers. Given these commitments, it seems ready-made which entities are the agents or powers: substances are agents and their accidents powers. William of Ockham, however, offers a rather different analysis concerning material substances and their essential powers, which this article explores. The article first examines Ockham’s account of propria and his reasons for claiming (...) that a material substance is essentially powerful sine accidentibus. However, the article subsequently argues that, given Ockham’s reductionism about material substance, only substantial forms – never substances – are truly agents and powers. Thus, a material substance is essentially powerful but only by courtesy – per accidens, as Ockham calls it – because it has a non-identical part, its substantial form, which does all the causal work by itself, per se. (shrink)

ABSTRACTIn a recent book, Thomas Ward advances an original interpretation of Duns Scotus’s hylomorphism, which stresses the ability of the parts of certain kinds of composites to exist independently from each other and from the composite to which they belong. Ward argues that the notion of essential order plays a key role in accounting for the unity of those parts in a composite. In another book, Richard Cross gives a comprehensive treatment of Duns Scotus’s theory of cognition, which proposes an (...) interesting but controversial interpretation of Duns Scotus as introducing a distinction between object and content and defending the view that the contents of intellectual cognitive acts are determined only by their internal structure. (shrink)

This paper explores how, according to three early modern philosophers, philosophical theory should relate to our pre-theoretical picture of reality. Though coming from very different backgrounds, the Spanish scholastic, Domingo de Soto, and the English natural philosopher, Kenelm Digby, agreed that an ability to accommodate our pre-theoretical picture of the world and our ordinary way of speaking about reality is a virtue for a philosophical theory. Yet at the same time, they disagreed on what kind of ontology of the (...) class='Hi'>material world is implied by these. The Dutch Cartesian, Johannes de Raey, took a very different approach, and argued that the picture of reality we naturally develop from our early days onwards and the language associated with it have their use in domains such as law and medical practice, but are a poor guide to the ontology of the material world. Thus, if we are to arrive at a proper understanding of the nature of matter, we need to move beyond the picture of reality we naturally develop from our early days onwards in order to come to see that the nature of matter consists in bare extension. (shrink)

In his commentary on Physics I 9, Simplicius claims that individual forms individuate matter. Given that in the same text he calls the immanent form ‘universal,’ it seems reasonable to conclude that the individual forms are individual instances of one universal species–form. However, Simplicius also mentions accidental properties that are peculiar to form rather than to matter. On the basis of Simplicius’ commentaries on the Categories and on the Physics, I argue that the individuating accidents are not part of the (...) individual forms, but that each individual’s form coordinates the individual’s accidental features. By belonging to a certain species, the individual form sets limits as to which accidents a matter–form compound can assume. This approach enables Simplicius to combine hylomorphism with a theory of individuation through properties. Furthermore, in his commentary on De Caelo I 9 Simplicius explains the uniqueness of each individual’s conglomeration of properties in light of his Neoplatonic cosmology: each individual corresponds to an individual cosmic disposition that determines its characteristic features. (shrink)

A chemical substance is instantiated in the material world by a number of quantities of such substance, placed in different locations. A change of location implies a change in the net of relationships entertained by the QCS with the region wherein it is found. This fact entails changes of the ontological status of the CS, as this is not fully determined by the inherent features of the CS and includes a relevant relational contribution. In order to demonstrate this thesis, (...) we have chosen to analyse the status of quantities of a same CS that are synchronically located in different spacetime regions: a synthetic lab, a lab where the QCS is turned into a material, an industrial plant, the market where the QCS gets a price and a dump waste where the QCS is discarded, respectively: Chemical substance Open image in new window material Open image in new window product Open image in new window goods Open image in new window wasteThe use of first-order predicate logic, mereology and locative logic allows carrying out a regimentation process that highlights the ontological commitments implied by the formal expressions through which each element of the aforementioned series can be described. The presence of relational properties discloses the systemic nature of the CS instantiated within a spacetime region. The implications of such an aspect are discussed. (shrink)

A new understanding of Kant’s theory of a priori knowledge and his natural philosophy emerges from Jeffrey Edwards’s mature and penetrating study. In the Third Analogy of Experience, Kant argues for the existence of a dynamical plenum in space. This argument against empty space demonstrates that the dynamical plenum furnishes an a priori necessary condition for our experience and knowledge of an objective world. Such an a priori existence proof, however, transgresses the limits Kant otherwise places on transcendental arguments in (...) the _Critique of Pure Reason_ because it establishes a _material_ transcendental condition of possible experience. This finding motivates Edwards to examine the broader context of Kant’s views about matter, substance, causal influence, and physical aether in connection with the developmental history of his theory of transcendental idealism. Against the backdrop of early modern metaphysics and contemporaneous physical theory, Edwards explicates the origins of the Third Analogy in Kant’s early work on the metaphysics of nature. The argument against empty space presented in the Third Analogy reveals a central aspect of Kant’s transcendental theory of experience that Edwards explains lucidly. By clarifying the epistemological standpoint at issue in the Third Analogy, he shows that the fundamental revisions to which Kant subjects his theory of knowledge in the _Opus postumum_ not only originate in his precritical metaphysics of nature but are developments of an argument central to the _Critique of Pure Reason_ itself. Edwards’s work is important to scholars working in the history of philosophy and the history and philosophy of science, as well as to Kant specialists. (shrink)