In this encyclopedia entry I canvass the current interpretations of John Locke's concept of Real Essence and the role it plays in his philosophy.

In this paper I argue that John Locke is not ontologically committed to corpuscularian real essences. I do this by laying out his antirealist argument against corpuscular real essences within the Essay and then defend it. I then identify a version of real essences to which he is ontologically committed. Recognition of the antirealist argument in the Essay should significantly alter our interpretation of the Essay.

This paper examines the problem of natural kinds, a key problem within feminist theory, and argues for a non-instrumental realist account of group identity. I suggest that a reconstructed theory of essence helps to make sense of group membership because it combines a conventional account of groups with a realist commitment to there being something responsible for the appearance of regularities in the world. The claim that natural kind membership is a matter of similarity relationships manages to avoid metaphysical, (...) universal property-based essentialism and, at the same time, points to interested generative mechanisms underlying the appearance of the regularities that make sense of kind membership. Finally, I suggest that the concepts 'real essence' and 'internal constitution' offer a new way to conceive 'sex' and 'gender', and that Adorno's notion of non-identity is a way to think group membership non-instrumentally. (shrink)

I argue that Locke’s various descriptions of real essence pick out one and the same thing, namely a nature that can be ascribed to many things, and in terms of which we can get matters of classification right or wrong. On my reading, Locke does not attack real essences of the sort that are the essences of real species, but rather the presumption that a sorting according to our species concepts and their names is a sorting (...) of things according to their real essences. And the lesson of Locke’s empirical argument against that presumption, I argue, is that our species concepts often function more like higher taxa, grouping together things that knowledge of their real essences would distinguish into distinct lowest species. (shrink)

While the tradition of Locke scholarship holds that both Locke and Boyle are species anti-realists, there is evidence that this interpretation is false. Specifically, there has been some recent work on Boyle showing that he is, unlike Locke, a species realist. In this paper I argue that once we see Boyle as a realist about natural species, it is plausible to read some of Locke’s most formidable anti-realist arguments as directed specifically at Boyle’s account of natural species. This is a (...) break from the tradition because no one in the literature has yet suggested that some of Locke’s arguments in Book III of the Essay include a criticism of Boyle’s doctrine of species. Moreover, identifying Boyle as Locke’s intended target illuminates some of the more vexing passages in the Essay concerning real essences. (shrink)

This paper elucidates and interrogates Schopenhauer’s notion of will and its relation to ideas about the unconscious, with the aim of addressing its significance as an exercise in philosophical psychology. Schopenhauer aims at a global metaphysics, a theory of the essence of the world as it is in itself. He calls this essence will (Wille), which, to put it briefly, he understands as a blind striving for existence, life, and reproduction. Human beings have the same essence as (...) all other manifestations of will in the world, and this has several consequences for Schopenhauer's conception of humanity. Neither rationality, nor intentional action, nor consciousness is primary or foundational in human beings. The true core of the personality is not the self-conscious ‘I’ or subject of knowledge, but rather the will, which is fundamentally blind and without knowledge, but which interacts with the intellect almost as an agent distinct from it. Schopenhauer makes a number of psychological observations about the interplay of intellect and will. These include the omnipresence of sexual desire in or beneath our experience; the persistence of desires and affects unknown to the self-conscious intellect; the will's capacity to prohibit representations in the intellect that are liable to arouse certain emotions; and the occurrence of madness when memories painful to the will are shielded from the intellect and arbitrary representations are substituted. (shrink)

Jean-Michel Vienne; IX*—Locke on Real Essence and Internal Constitution1, Proceedings of the Aristotelian Society, Volume 93, Issue 1, 1 June 1993, Pages 139–15.

In this paper I criticize arguments by Pauline Phemister and Matthew Stuart that John Locke's position in his An Essay Concerning Human Understanding allows for natural kinds based on similarities among real essences. On my reading of Locke, not only are similarities among real essences irrelevant to species, but natural kind theories based on them are unintelligible.

Conventionalists about modality deny that the world has a modal structure. Metaphysical necessity is not a real feature of the world, but a linguistic necessity grounded in conventions governing our use of words. In this paper, I focus on Allan Sidelle’s conventionalist account and especially on his claim that the idea of real necessity should be abandoned since it is puzzling. My strategy for the defense of the realist notion of modality is twofold. First, the ontology of undifferentiated (...) stuff, which underlies his conventionalist account, is itself very puzzling and in need of further defense. Second, the alleged problems of the realist interpretation are based on an empiricist view of the world. (shrink)

‘Water is H2O’ is one of the most frequently cited sentences in analytic philosophy, thanks to the seminal work of Saul Kripke and Hilary Putnam in the 1970s on the semantics of natural kind terms. Both of these philosophers owe an intellectual debt to the empiricist metaphysics of John Locke's Essay Concerning Human Understanding, while disagreeing profoundly with Locke about the reality of natural kinds. Locke employs an intriguing example involving water to support his view that kinds (or ‘species’), such (...) as water and gold, are the workmanship of the human mind. This is the point of his story about a winter visitor to England from Jamaica, who is astonished to find that the water in his basin has turned solid overnight, and proceeds to call it ‘hardened water’. Locke criticizes this judgement, maintaining that it is more consonant with common sense to regard water and ice as different kinds of substance. Putnam, by implication, disagrees. Deploying his imaginary example of Twin Earth—a distant planet where a watery-looking substance, XYZ, rather than H2O, fills the oceans and rivers—he maintains that common sense supports the judgement that XYZ and H2O, despite their superficial similarity, are not the same kind of substance, precisely because their molecular compositions are different. Here it will be argued that both views are mistaken, but that, in this dispute, Locke has more right on his side than his modern opponents do. (shrink)

L'auteur résume dans cet article le contenu du commentaire du Phèdre qui doit paraître en mai 1998. Le Phèdre constitue un véritable « manifeste » qui présente un programme dans lequel Platon, alors âgé de soixante à soixante-cinq ans environ, prend position sur la question de l'écriture, à un moment où celle-ci était en train de se substituer à l'oralité pour constituer un instrument de communication privilégié. Dans le Phèdre, Platon veut montrer que, au moment même où il écrit, il (...) est le plus grand écrivain de la Grèce. Il démontre ce point en deux étapes: il entame tout d'abord une « joute oratoire » avec Lysias, alors considéré comme le meilleur écrivain de son temps, où il fait montre de sa supériorité sur les rhéteurs tant sur la forme que sur le contenu; il propose ensuite une théorie de l'art d'écrire dont le caractère adéquat se fonde sur la méthode dialectique. Il énonce de surcroît les trois critères fondamentaux qui doivent gouverner tous les discours, que ceux-ci soient écrits ou oraux: 1 / il faut connaître l'essence de la chose dont on parle; 2 / il faut connaître la nature des âmes auxquelles on s'adresse; 3 / il faut adapter les contenus des messages que l'on veut communiquer aux capacités de réception des âmes auxquelles on s'adresse. Toutefois, les messages du philosophe ne peuvent être transmis par la seule écriture: les choses les plus précieuses, le philosophe les écrit dans les âmes des hommes, autrement dit, il les communique dans le registre de l' « oralité dialectique ». Les discours écrits n'ont aucune autonomie, puisqu'ils ont, de fait, besoin du « secours » de l'auteur. Pour comprendre les discours écrits, fussent-ils les meilleurs, une connaissance préalable des choses dont ils traitent est nécessaire, connaissance qui ne peut être obtenue que par des voies différentes de celles que fournissent les discours écrits. The author summarizes in this article the content of his Phaedrus' commentary which will appear in May of 1998. The Phaedrus constitutes a true « manifesto ». It presents a programme in which Plato (who was then aged sixty or sixty-five), defends a position on the question of writing at a time when writing was being substituted for orality as the primary instrument of communication. In the Phaedrus, Plato wants to show, while he is writing it, that he is the greatest writer in Greece. He demonstrates this point in two stages: first, he initiates an « oratorical contest » with Lysias who was then considered the best writer of this time, where he shows his superiority over the orators both in form and in content; then, he proposes a theory of the art of writing the appropriate character of which is based on the dialectical method. Moreover, Plato states the three primary criteria which must govern any discourse whether oral or written: 1 / knowledge of the essence of what one speaks; 2 / knowledge of the nature of the souls to be addressed; 3 / knowledge of the content of the messages that one addressed. However, the messages of the philosopher cannot be transmitted only by writing. The most precious things are written by the philosopher in the souls of men, in other words, he communicates them in the register of dialectical orality. Written discourses have no autonomy since they need the « help » of the author. To understand written discourse, including the best, a preliminary knowledge of the things with which they deal is necessary, knowledge which can only be obtained through paths different from those which are provided by written discourse. (shrink)

J. L. Mackie's famous claim that Locke ‘anticipates’ Kripke's Causal Theory of Reference rests, I suggest, upon a pair of important misunderstandings. Contra Mackie, as well as the more recent accounts of Paul Guyer and Michael Ayers, Lockean Real Essences consist of those features of an entity from which all of its experienceable properties can be logically deduced; thus a substantival Real Essence consists of features of a Real Constitution plus logically necessary objective connections between them (...) and features of some particular Nominal Essence. Furthermore, what Locke actually anticipates is the most significant contemporary challenge to the CTR: the qua‐problem. (shrink)

In his lectures on Logic and Metaphysics, Kant distinguishes between logical and real essences. While the former is related to concepts and is knowable, the latter is related to things and is unknowable. In this paper, I argue that the unknowability is explained by the modal characteristic of real essences as a necessitating ground on which a priori knowledge is impossible. I also show how this claim is related to the unknowable necessity of particular laws of nature. Since (...) laws of nature are conceived as grounded in real essences, the unknowability of the latter is equivalent to Kant's other claim that there can be no knowledge of the necessity of particular laws of nature. Necessity can only be known a priori, and therefore, the necessity of particular laws is only assumed and conceived as grounded in something unknowable, a real essence. This conclusion will allow me to attribute to Kant a position I label as “regulative essentialism”, meaning that real essences have an indispensable role in accordance with the rational interest to explain nature as a system of laws and natural kinds, combined with an epistemic humility about the correspondence of our empirical concepts to real essences. (shrink)

Aquinas’ so-called “Intellectus essentiae Argument” for the distinction between being and essence is notoriously suspect, including among defenders of Aquinas’ distinction. For the paper in this volume, I take as my starting point the recent defense of the argument by Fr. Lawrence Dewan, O.P. Fr. Dewan’s project is unsuccessful. Pointing out some shortcomings in his readings allows me to take up his call to highlight the “formal” or “quidditative side” of Aquinas’ metaphysics, in this case in regards to the (...) proofs of the “real distinction.” Accordingly, the second half of this paper sets forth a way in which the famous “Intellectus essentiae Argument” of De Ente et Essentia 4 can succeed as a proof of the real distinction. Aquinas’ argument presupposes the prior real distinction between essence and supposit or individual substance. Esse is the ontological component that makes true our judgments that substances actually are: Obama exists. By contrast, this “truth-maker” cannot be predicated of humanity, although it is in Obama as really distinct from him. If Aquinas’ reasoning in this most contentious of his proofs can be saved, so, perhaps, can most of his other proofs. (shrink)

This paper explores the prospects of combining two views. The first view is metaphysical rationalism : all things have an explanation. The second view is metaphysical essentialism: there are real essences. The exploration is motivated by a conflict between the views. Metaphysical essentialism posits facts about essences. Metaphysical rationalism demands explanations for all facts. But facts about essences appear to resist explanation. I consider two solutions to the conflict. Exemption solutions attempt to exempt facts about essences from the demand (...) for explanation. Explanation solutions attempt to explain facts about essences. I argue that exemption solutions are less promising than explanation solutions. I then consider how explanation solutions might be developed. I suggest that a “generative” approach is most promising. I tentatively conclude that the prospects for combining metaphysical rationalism and metaphysical essentialism turn on the viability of a generative approach. This sets the agenda for defending the combination as well as the more general project of explaining essences. (shrink)

When I classify Fluffy as a cat, I appear to do so out of an appreciation of a prior metaphysical fact, namely, that she has a nature or essence common to creatures we classify as cats. Locke turns this picture on its head. Our actual practices of naming and sorting individuals into kinds proceed according to ideas in the mind. As Locke puts it, species (kinds) are ‘the Workmanship of the Understanding,’ not the workmanship of nature, because their essences (...) consist in abstract ideas, or ‘nominal essences,’ we make. Many take Locke to mean that the observable similarities and differences between things leave it undetermined how we are to group and distinguish them, so that classification is, and must be, a matter of convention. And while Locke never denies that individuals have real essences, it is argued that knowledge of them would not reveal natural boundaries, either. On this influential reading, nature does not draw boundaries between kinds, and she makes this fact apparent to us. I argue that Locke’s claim that nature does not determine the ‘Boundaries of the Species of Things’ should be understood as the claim that nature does not draw the variable boundaries set out in the nominal essences we make. Differences in our nominal essences reflect differences in speakers’ knowledge of external ‘standards,’ which we latch on to by way of their ‘leading’ qualities, which present the mind with a limited number of unique and highly salient bases for classification. On my reading, nature may very well draw boundaries of her own. (shrink)

Matter’s real essence is a ground for certain features of phenomena. Things in themselves are likewise a ground for certain features of phenomena. How do these claims relate? The former is a causal essentialism about physics, Stang argues; and the features so grounded are phenomenally nomically necessary. The latter involves a distinctive ontology of things in themselves, I argue; but the features so grounded are not noumenally nomically necessary. Stang’s version of Kant’s modal metaphysics is admirable, but does (...) not go far enough. Kant’s causal essentialism involves the essences of fundamental properties, as well as of matter. And things in themselves are grounds, because they are substances, the ‘substrate’ of phenomena. (shrink)

Nowadays, essentialism has obtained various senses and its extension reaches out over many branches of study who have some immediate connection with it. Socrates, Plato, Aristotle, Saul Kripke, Hilary Putnam and David Wiggins are the notable upholders of essentialism. The Essentialist movement which stemmed from the view that philosophy is a speculative study of Reality was temporarily suspended or stagnated by the spirited movement of the logical positivists like Moritz Schlick, Hans Reichenbach, Rudolf Carnap and A. J. Ayer. According to (...) these philosophers, philosophy is simply an activity of analysis of the fundamental concepts of ordinary language or of science or of any other discipline. Such concept—analysis—philosophers are called anti-essentialist. Here, I shall concentrate on the views of Aristotle. I shall discuss the doctrine of essence, natural kinds, real essence in favour of essentialism and also discuss W. V. O. Quine’s view as an anti-essentialist trend. At last I shall try to examine whether and to what extent an attack of essences reflects back certain essentialist commitments, which is to see what reasonable theory of essences can be eked out from the entire exercise. (shrink)

In a recent paper Copi has argued for the admission of the term “essence” into scientific terminology. His primary reason is that the increasing adequacy of scientific theories is evidence of a gradual approximation to the real essences of things. Copi is aware that the laws of modern science are not to be taken as formulations of essences. But, he claims, “that is an ideal towards which science strives… Centuries hence wiser men will have radically different and more (...) adequate theories, and their notions will be closer approximations than ours to the real essences of things.”. (shrink)

_Real Essentialism_ presents a comprehensive defence of neo-Aristotelian essentialism. Do objects have essences? Must they be the kinds of things they are in spite of the changes they undergo? Can we know what things are really like – can we define and classify reality? Many, if not most, philosophers doubt this, influenced by centuries of empiricism, and by the anti-essentialism of Wittgenstein, Quine, Popper, and other thinkers. _Real Essentialism_ reinvigorates the tradition of realist, essentialist metaphysics, defending the reality and knowability (...) of essence, the possibility of objective, immutable definition, and its relevance to contemporary scientific and metaphysical issues such as whether essence transcends physics and chemistry, the essence of life, the nature of biological species, and the nature of the person. (shrink)

This book presents vigorous and wide-ranging arguments in defense of an Aristotelian metaphysical scheme along fairly orthodox Thomistic lines. The central claim is that the items that populate the world have real essences – natures that mind-independently define what each such item is. This Aristotelian essentialism, Oderberg begins by telling us, is a different doctrine from what has recently been called ‘essentialism’, and a more powerful one . For recent essentialism has treated a thing's essence as merely all (...) those properties that the thing takes with it across all possible worlds – and here modality gets presupposed in order to explain essentialness, when the order should be reversed.We can observe essences, Oderberg holds, even though the observation is indirect, and even though knowing what to make of our observations requires applying metaphysical knowledge. Positivism-inspired worries that there is something unfactual about modal claims, and hence about essences, are unfounded . Claims about essences do have factual content, but not because they merely express our concepts or our grammar, and not because they simply report empirical findings . True reports of the essences of objects articulate a metaphysical insight from Aristotle: an object's essence is a compound of its substantial form and its prime matter . Its form actuates potentialities of its matter . The laws of nature derive from essences, and hence are necessary rather than contingent . Artifacts are ‘accidental unities’ of individual substances and …. (shrink)

Locke, in his discussion of essences, makes extensive use of a distinction he introduces between nominal and real essences. This distinction has always been found interesting and important, and in fact, R.I. Aaron said of it that ‘there is no more important distinction in the Essay.’ Nevertheless, to say there has not been general agreement about what Locke was getting at is putting it mildly. Interpretations of Locke's point in making such a distinction have varied widely, depending upon whether (...) the importance of the real or the nominal essence is stressed. Locke tells us we should distinguish the nominal essence, which is the abstract idea to which a general name is attached and for which it stands, from the real essence, which is the ‘real internal, but generally in Substances, unknown Constitution of Things, whereon their discoverable Qualities depend.’. (shrink)

We may define words or concepts, and we may also, as Aristotle and others have thought, define the things for which words stand and of which concepts are concepts. Definitions of words or concepts may be explicit or implicit, and may seek to report preexisting synonymies, as Quine put it, but they may instead be wholly or partly stipulative. Definition by abstraction, of which Hume’s principle is a much discussed example, seek to define a term-forming operator, such as the number (...) operator, by fixing the truth-conditions of identity-statements featuring terms formed by means of that operator. Such definitions are a species of implicit definition. They are typically at least partly stipulative. Definitions of things, or real definitions, are, by contrast, typically conceived as true or false statements about the nature or essence of their definienda, and so not stipulative. There thus appears to be an obvious and head-on clash between taking Hume’s principle as an implicit and at least partly stipultative definition of the number operator and taking it as a real definition, stating the nature or essence of cardinal numbers. This paper argues that this apparent tension can be resolved, and that resolving it sheds light on part of the epistemology or essence and necessity, showing how some of our knowledge of essence and necessity can be a priori. (shrink)

This paper investigates Kant’s account of “real essence” and of a thing’s “nature”. Notwithstanding their wide negligence in the literature, these concepts belong to the central ones of Kant’s metaphysics. I argue that, on the one hand, Kant is in continuity with the Aristotelian-Scholastic tradition of essence. But, on the other hand, he also follows Locke in distinguishing between “logical” and “real” essence. Contrary to recent attempts of aligning real essence with contemporary approaches (...) to essence, I will defend the thesis that Kant equates real essence and (formal) nature, and that real essence has a causal, but no constitutive role. I shall also respond to potential objections and discuss some developments of Kant’s views. (shrink)

This paper derives the essence of a substance (i.e., the nominal essence) and its content by respectively discussing substance and real essence, substance and nominal essence, providing an answer to the question: “What certainty can substance derive from Locke’s description of essence”. Substance and real essences answer different questions, and the idea of explaining substance in terms of real essence (as represented by Michael Ayers) is not feasible; the true essence (...) of the substance is nominal essence, from which the substance derives only the meaning of substance’s name, and this meaning cannot be fully revealed, so that one does not have complete knowledge of the essence of substance. Overall, we know very little about substance and the content of their essences (nominal essences), this negative result provides a new perspective on empirical agnosticism. (shrink)

In this work we try to distinguish five levels of the constitution of reality in Conrad Martius’ Realontologie (1923) (Real Ontology). The difference between “existential autonomy” and “existential relativity” seems to be the first one. The second level of the constitution of reality concerns the problem of “whatness” (Washeit) and the substantial reality (Realität). We can find the third level in the materiality from the eidetical point of view. The fourth level of the constitution of reality concerns the material (...) formation as presupposition of a personal essence. Finally we can distinguish a fifth level of the constitution of the reality in the essential stratification. (shrink)

Does ‘blindsight’ show that seeing is only inessentially an experience? The data is examined, and difficulties raised. Why always low‐key examples? How do we know it is not a borderline example of seeing? The argument pro the view that seeing occurs and experience does not is examined. The likelihood of these twin possibilities is counterbalanced against alternative interpretations of the data, and on the whole found wanting. But assuming that they are both realized, what theoretical account of seeing is open (...) to one? That it is a cerebral phenomenon endowed with suitable input and output causal properties? But is this a statement of real essence? If so, it is not a viable theory. Presumably, it is a functionalist statement of nominal essence. However, while seeing has necessary origin properties, the cognitive effects of seeing are inessential. Then why believe that ‘seeing’ names any phenomenon at all? And why neglect its actual experiential function? The conclusion is that the experiential status of seeing is part of its essence, and that the standard interpretation of ‘blindsight’ is tantamount to jettisoning the very concept. (shrink)

It has been claimed that in a single line of development the science of taxonomy stretches from Aristotle to the present day and that the Aristotelian 'essence' lies at the heart of much later thought about grouping. I try to establish some basic features of Aristotle's conception of 'essence', and then consider in more detail the conception of essence that entered into 18th century thought about classification, with a view to establishing discontinuities. 18th century thought, I note, (...) has two kinds of essence, real and nominal, and I consider the view that a 'natural' classification in that context should be understood as one which is based on real essences. In place of this thesis, I advocate the view that the hidden foundation of 18th century systematics is a very restrictive articulation of the visual field which gives sense to the possibility of grouping according to the sum total of observable similarities and differences: and that it is this possibility that a 'natural' classification was conceived of as realising. (shrink)

Hedwig Conrad-Martius, the woman pioneer of the realistic phenomenological school, describes the reality to which her philosophizing is addressed as “totally non-material corporeality”. With this contradictory expression she seeks to affirm two foundational aspects regarding reality: the spatial that achieved material realization in real existents and the concealed non-spatial that is at the cradle of the establishing of reality and remains present behind its phenomenal and material appearing. This article focuses on three ontological elements in HCM’s idea of reality—“ (...) class='Hi'>essence”, “abyss”, and “self”—whose meaning both implies and raises the issue of the non-spatiality of Being in a complex manner. Moreover, the three seek the same objective of coming to terms with the force in real beings that will never ever be able to shine in its entirety. By means of philosophical explication of the mentioned elements and the illumination of the dialectic of each of them with the corresponding spatial aspects, this article demonstrates the evolution of HCM's understanding of the issue of spatiality that mirrors her metaphysics as a whole. (shrink)

One currently popular methodology of metaphysics has it that ‘intuitions’ play an evidential role with respect to metaphysical claims. This chapter defends a realist methodology of metaphysics that implies that any rational being, simply in virtue of being rational, is necessarily capable of grasping the essences of at least some mind-independent entities. The notion of essence in play here is Aristotelian, whereby an entity’s essence is captured by an account of what that entity is, or what it is (...) to be that entity. Concepts are just ways of thinking of things and, as such, may or may not be adequate to the real natures — the essences — of the things being thought of. Our ‘intuitions’, particularly as revealed by aptly constructed thought experiments, may cast interesting light on some of our concepts, but they are not and cannot be reliable guides to mind-independent truths of essence. (shrink)

According to essentialism, metaphysical modality is founded in the essences of things, where the essence of a thing is roughly akin to its real definition. According to potentialism (also known as dispositionalism), metaphysical modality is founded in the potentialities of things, where a potentiality is roughly the generalized notion of a disposition. Essentialism and potentialism have much in common, but little has been written about their relation to each other. The aim of this paper is to understand better (...) the relations between essence and potentiality, on the one hand, and between essentialism and potentialism, on the other. It is argued, first, that essence and potentiality are not duals but interestingly linked by a weaker relation dubbed ‘semi-duality’; second, that given this weaker relation, essentialism and potentialism are not natural allies but rather natural competitors; and third, that the semi-duality of essence and potentiality allows the potentialist to respond to an important explanatory challenge by using essentialist resources without thereby committing to essentialism. (shrink)

What is the new essentialist asking us to accept? Not that there are natural kinds, nor that there are intrinsic causal powers. These things could be accepted without a commitment to essentialism. They are asking us to accept something akin to the Kripke‐Putnam position: a metaphysical theory about kind‐membership in virtue of essential properties. But Salmon has shown that there is no valid argument for the Kripke‐Putnam position: no valid inference that gets us from reference to essence. Why then (...) should we accept essentialism? A remaining reason is Ellis's argument by display: we should buy essentialism because of the benefits it will bring. But are these benefits real? The problem is that the putative benefits of essentialism – that the laws of nature are necessary, that the problem of induction is solved, and so on – look actually to be the assumptions of Ellis's theory. If that is the case, there is no real benefit to be gained from adopting the theory. The argument for essentialism is therefore underdetermined and it remains possible to accept natural kinds into one's ontology without accepting their corresponding essences. (shrink)

The subject of this essay is propria and their relation to essence. Propria, roughly characterized, are those real properties of a thing which are natural but nonessential to it, and which are said to “flow from” the thing’s essence, where this “flows from” relation is understood to designate a kind of explanatory relation. For example, it is said that Socrates’s risibility flows from his essential humanity; and it is said that salt’s solubility in water flows from the (...) essential natures of both salt and water. The question I raise and attempt to answer in this essay is: In what sense do propria “flow from” essences? What kind of explanatory relation is this exactly? Some suggest that it is a relation of logical consequence ; others, of grounding ; and still others, of formal causation. In this essay, I reintroduce and defend a view suggested by the late scholastic Spanish philosopher and theologian Francisco Suárez, who in 1597 wrote that effluence is best understood as a very special kind of efficient causation, which we can call the relation of emanation. The thesis of this essay, then, is that propria emanate from essences. Along the way, this paper offers a new taxonomy of types of propria; it explains the significance of propria for the metaphysics and epistemology of essences; it discusses at length varieties of efficient causation ; and then it offers an extensive abductive argument in favor of Suárez’s account, whereby the former accounts of effluence are critiqued, each in turn, and Suárez’s view is motivated and ultimately shown to be superior to its competitors. (shrink)

When presenting one of a sequence of theories on individuation, Duns Scotus argues for a formal distinction in creatures between an individual essence and its existence. His reason is that, otherwise, an individual creature would be a necessary existent. Since Scotus maintains that essence is potential to existence, this paper shows how this discussion relates to his exhaustive analysis of actuality and metaphysical potency in the questions on the Metaphysics, book IX, qq. 1–2, concluding that Scotus’s views on (...) essence and existence do not commit him to a realm of real but unactualized possibilia. The paper tentatively suggests that existence, in creatures, consists in a relation to an efficient cause or causes. Scotus holds that God’s existence, identical with his essence, is nevertheless formally distinct from God, since essence/existence and the divine attributes are formally distinct from each other and all included in God. (shrink)

The concept of every real thing from all eternity contains the unavoidability of its existence before the divine decision. Thus every complete concept of a real thing contains the property of being such that the thing will exist if a created universe exists. Then a thing's existence cannot be external to its concept. There is bound to be more in the concept of something that exists than in that of "something" that does not-since existence is explained through the (...) quidditative property of being an essence that constitutes an integral part of the most perfect series of things. Such an essential, quidditative perfection explains the divine decision, and hence existence. Therefore, existence can be deduced from that essential perfection. The essence-as-such, the mere possible, contains something from which existence follows. What Leibniz never manages to explain is what distinguishes existence from the quidditative perfection it unavoidably stems from. (edited). (shrink)

The amount of social support literature in the field of interpersonal communication has increased steadily. In the last decade, however, no one has pushed for a conclusion as to what kind of phenomenon social support is. This article aims to describe the essence of social support. The essence is what must be present in all the phenomena that claim to be social support. The study uses phenomenological reduction and imag¬inative variation (1) on social support definitions and (2) on (...) the empirical material of support in men’s friendships. The synthesis of the two sets of material deduces the essence of social support both theoretically and empirically. According to the phenomenological reduction the essence of social support is the awareness of a real or potential void in a person’s life experience, and of otherness that intends to alter that experience to achieve wholeness. Supportive communication is the manifestation of the essence of social support in interpersonal relationships. (shrink)

Recent work on essence describes essence as assimilated to definition. It also posits a plurality of kinds of essence.Howdoes assimilation relate to pluralism? According to one view, a kind of essence is adequate only if it is definitional: something is essential to an item, in the relevant sense, only if it is part of what it is to be that item. In this paper, I argue that assimilation and pluralism are in tension with respect to consequentialist (...) essence. This is problematic given that, as a methodological prescription, some philosophers advise us to work with consequentialist essence. In this paper, I develop a theory of constitutive essence and use it to resolve the problem by defining an adequate notion of consequentialist essence that preserves the methodological prescription. (shrink)

In this work, I consider Aristotle's theory of universals in the Organon. I argue that, according to Aristotle, demonstrative knowledge presupposes the existence of real universals, and I defend a mereological interpretation of Aristotelian real universals. ;The work is divided into three parts. First, I demonstrate that Aristotle's theory of demonstrative knowledge presupposes the existence of universals and argue that the ontological status of universals cannot be determined from Aristotle's explications of his concept of a universal. Second, I (...) reconstruct Aristotle's semantics for universal affirmative premises and demonstrate that, according to Aristotle, every true universal affirmative premise involves a universal term that primarily signifies a universal concept and secondarily signifies either a real essence or a real genus. Third, I argue that real essences and genera are real universals and that real universals are wholes, each of the parts of which is a real particular. ;In chapter 1, I reconstruct two arguments from the Posterior Analytics that reveal important connections between Aristotle's theory of demonstrative knowledge, his philosophy of language, and his ontology in the Organon. In chapter 2, I argue that the ontological status of universals is underdetermined by the various explications of the concept of a universal $\lbrack\tau\`o\ \kappa\alpha\theta\'o\lambda o\upsilon\rbrack$ presented by Aristotle in the Organon. In chapter 3, the syntax of simple statements as presented in De Interpretatione is investigated. In chapter 4, I argue the semantic scheme for simple statements presented by Aristotle in De Interpretatione in conjunction with his excursus on concept acquisition in APst. B 19 provide the semantic grounds for the syntactic distinctions among simple statements. I establish the extensional features of Aristotle's semantics in chapter 5. In chapter 6, I present my interpretation of Aristotelian real universals, focusing solely on primary and secondary substances. I argue that, according to Aristotle, there are real universals that are wholes having for parts the essences or the parts of the essences of primary substances. (shrink)

The article proposes a new solution to the long-standing problem of the universality of essences in Spinoza's ontology. It argues that, according to Spinoza, particular things in nature possess unique essences, but that these essences coexist with more general, mind-dependent species-essences, constructed by finite minds on the basis of similarities that obtain among the properties of formally-real particulars. This account provides the best fit both with the textual evidence and with Spinoza's other metaphysical and epistemological commitments. The article offers (...) new readings of how Spinoza understands not just the nature of essence, but also the nature of being, reason, striving, definitions, and different kinds of knowledge. (shrink)