According to the conceptualist view in the philosophy of perception, we possess concepts for all the objects, properties, and relations which feature in our experiences. Richard Heck has recently argued that the phenomenon of illusory experience provides us with conclusive reasons to reject this view. In this paper, I examine Heck’s argument, I explain why I think that Bill Brewer’s conceptualist response to it is ineffective, and I then outline an alternative conceptualist response which I myself endorse. My argument turns (...) on the fact that both Heck, in constructing his objection to conceptualism, and Brewer, in responding to it, miss a crucial distinction between perceptual demonstrative concepts of objects, on the one hand, and perceptual demonstrative concepts of properties, on the other. (shrink)

Lucy Allais’s Manifest Reality presents a systematic discussion of the role that Kant assigns to concepts in making knowledge of objects possible. In this paper, I ascribe to Allais a version of non-conceptualism, according to which knowledge is a ‘hybrid’ or loose unity of concept and intuition; concept relates to intuition as form relates to matter in an artefact. I will show how this view has trouble accommodating the distinction between knowledge and accidentally true belief, and how it leads (...) to objectionable forms of idealism. (shrink)

Overview of the (non)conceptualism debate in Kant studies.

Defenders of non-conceptualism have been accused of falling into the Myth of the Given. This is John McDowell's main objection to non-conceptualism. In this article I evaluate some well-known non-conceptualist responses to that objection. My analysis shows that non-conceptualists have not provided plausible explanations for the epistemic role of experience. As a consequence, McDowell's objection seems to be correct. The structure of the article is as follows: first, taking into account the debate between conceptualists and non-conceptualists, I shed (...) light on what the Myth of the Given is. Second, I critically examine Richard Heck's, Christopher Peacocke's and Robert Hanna's proposals on how experiences justify beliefs. I end the article by clarifying the scope of McDowell's criticism. (shrink)

C. I. Lewis’s version of pragmatism, which he called “conceptualistic pragmatism,” has been little studied and is nowadays overlooked, eclipsed by the more famous pragmatisms of Dewey and James. However, it was Lewis’s version that came to dominate the formation of post-1945 pragmatism in the United States. It provided the framework in which Quine (his former student), Sellars, Davidson, Rorty and Brandom operated. Roughly, that structure involved a passive, sensory ineffable given and an ordering and classification of the given by (...) a priori categories. Comprehending those categories was a matter of apprehending a priori truths, but those categories were also changeable. Rational change involved giving some up and substituting others to meet certain basic human interests. We thus have the picture of mind and world that culminates in a certain sense in Brandom’s philosophy: External causal inputs linked to an internal normative inferential network which then results in causal outputs of linguistic shape. This is very different from the classical German idealist conception of mind and world, which takes the distinguishability-but-inseparability of concept and sensory intuition as its core. (shrink)

In the view of my philosophical position “nominal conceptualism”, cognitive/knowledge agents, who are in some way aware of expressing the world based on their mental concepts, deal with their linguistic and/or symbolic expressions. In this paper I rely on nominal conceptualism to logically characterise agents’ concept-based descriptions of the world and analyse a fundamental logical system for conception representation.

Hanna proposes a version of non-conceptualism he closely associates with Kant. This paper takes issue with his proposal on two fronts. First, there are reasons to dispute whether any version of non-conceptualism can be rightly attributed to Kant. In addition to pointing out passages that conflict with Hanna's interpretation, I also suggest ways in which the Kant of the Opus Postumum could integrate key insights of non-conceptualism into a basically conceptualist framework. In Part Two of the paper, (...) I turn to a more systematically oriented critique of Hanna's nonconceptualism. Drawing on work by Gareth Evans, John McDowell, Sonia Sedivy, and Alva Noë, I argue that conceptualism is in a position to integrate the points which are taken by Hanna to speak most strongly in favor of non-conceptualism. In particular, I argue for the deep compatibility of conceptualism and direct realism. At the same time, I point to what I see as weaknesses in Hanna's defence of non-conceptualism. (shrink)

In the recent debate between conceptualists and nonconceptualists about perceptual content, Kant’s notion of intuition has been invoked on both sides. Conceptualists claim Kant as a forerunner of their position, arguing that Kantian intuitions have the same kind of content as conceptual thought. On the other hand, nonconceptualists claim Kant as a forerunner of their own position, contending that Kantian intuitions have a distinctly nonconceptual kind of content. In this paper, I argue first, that both sides are wrong about Kant, (...) secondly, that neither side can properly account for the epistemic function of intuition, and thirdly, that Kant’s own notion of intuition contains the resources for a third alternative. The epistemic function of an intuition for Kant is to furnish the sensory representation of an object of cognition. Conceptualism cannot account for this function because it construes perception as a species of thought. As a proper appreciation of Kant’s reasons for insisting upon the heterogeneity of thought and perception puts one in a position to see, any view that does this will fail to do justice to the distinctly sensory nature of intuition. Nonconceptualism, on the other hand, cannot account for the epistemic function of intuition because it views intuition as self-standing, and thus as completely independent from thought. As a consequence, nonconceptualism is not entitled to claim that an intuition is itself a cognitive state. I show that Kant’s actual view avoids both these extremes because it involves a different way of conceiving how perception is informed by conceptual thought. Building on this conception, Kant is able to preserve the distinctly sensory nature of intuition, while also securing proper cognitive standing for it. As a result, Kant’s notion of intuition provides the resources for an alternative account of how thought relates to the senses – one that avoids the shortcomings of the positions staked out in the contemporary debate. (shrink)

This paper defends a conceptualist answer to the question how objects come by their modal properties. It isolates the controversial metaphysical assumptions that are needed to get ontological conceptualism off the ground, outlines the conceptualist answer to the question and shows that conceptualism is not in as bad a shape as some critics have maintained.

In this paper, I argue that those who accept the conceptualist view in the philosophy of perception should reject the traditional view that colour indiscriminability is non-transitive. I start by outlining the general strategy that conceptualists have adopted in response to the familiar ‘fineness of grain’ objection, and I show why a commitment to what I call the indiscriminability claim seems to form a natural part of this strategy. I then show how together, the indiscriminability claim and the non-transitivity claim (...) –the claim that colour indiscriminability is non-transitive –entail a further, suspicious-looking claim that I call the problematic claim. My argument then splits into two parts. In the first part, I show why the conceptualist does indeed need to reject the problematic claim. Given that this claim is jointly entailed by the indiscriminability claim and the non-transitivity claim, the conceptualist is then left with a straight choice: reject the indiscriminability claim, or reject the non-transitivity claim. In the second part, I then explain why the conceptualist should choose the latter option. (shrink)

In this paper I analyze the non-conceptualist continuity argument to show that it implies an implausible conception of perceptual experience in animals that are supposed to lack concepts. In order to do this, I show the limitations and implicit premises in the traditional formulations of the argument, and the additional premises needed to use it as an objection against conceptualism. Then, I review studies in cognitive neuroscience, ethology, comparative psychology, developmental psychology, and philosophical considerations to show that the argument (...) implies a conception of animal experience that is at odds with our scientific theories and even with the motivations for adopting non-conceptualism. I conclude that, if we wish to defend the continuity between adult human’s and other animal’s experiences, we should do it by attributing concepts to the latter. (shrink)

The motivation for McDowell’s conceptualism is an epistemological consideration. McDowell believes conceptualism would guarantee experience a justificatory role in our belief system and we can then avoid the Myth of the Given without falling into coherentism. Conceptualism thus claims an epistemological advantage over nonconceptualism. The epistemological advantage of conceptualism is not to be denied. But both Sellars and McDowell insist experience is not belief. This makes it impossible for experience to justify empirical knowledge, for the simple (...) reason that what is not a belief cannot justify a belief. Nondoxastic experience, though conceptual, is still a Given. And what conceptualism gives us can only be a New Myth of the Given. (shrink)

In “Study of Concepts”, Peacocke puts forward an argument for non-conceptualism derived from the possession conditions of observational concepts. In this paper, I raise two objections to this argument. First, I argue that if non-conceptual perceptual contents are scenario contents, then perceptual experiences cannot present perceivers with the circumstances specified by the application conditions of observational concepts and, therefore, they cannot play the semantic and epistemic roles Peacocke wants them to play in the possession conditions of these concepts. Second, (...) I argue that if non-conceptual perceptual contents are protopropositions, then Peacocke’s account of the possession conditions of observational concepts falls into the Myth of the Given. (shrink)

Michael Ayers’s Knowing and Seeing: Groundwork for a New Empiricism is a rich and detailed development of two ideas. The first is that perception presents reality to us directly in a perspicuous way. We thus acquire primary knowledge of the world: “knowledge gained by being evidently, self-consciously, in direct cognitive contact with the object of the knowledge.” (Ayers 2019, 63) The second idea is that concepts are not needed in perception. In this article, the author examines Ayers’s view. The author (...) proceeds as follows: In the first section, he identifies the target of Ayers’s attacks, conceptualism. He then describes why many philosophers have felt this conceptualist view to be attractive. In the next section, he discusses Ayers’s criticisms of conceptualism in an attempt to disentangle these criticisms from the statement of his positive view, which the author discusses in the following section. He ends by describing some problems for Ayers’s positive position that are, so he argues, the result of his vehement opposition to conceptualism. (shrink)

Divine conceptualism takes all abstract objects to be propositions in the mind of God. I focus here on necessary propositions and contemporary claims that the laws of logic, understood as necessarily true propositions, provide us with an epistemic bridge to theological predication—specifically, to the claim that God exists. I argue that when contemporary versions of DC say ‘G/god’ they merely rename the notion of necessary truth, and fail to refer to God. Given that God is incomprehensible, epistemic access to (...) the state of propositions in the mind of God is extremely limited. (shrink)

Many think that the perceptual theory known as “conceptualism” cannot honor a common and intuitive constraint on concept acquisition—that we gain the initial power to deploy primitive concepts through experience. Their argument is: if experience involves the deployment of concepts, then one must possess the power to deploy those concepts prior to experience. I argue that the plausibility of this argument rests on a subtle equivocation. It’s true that conceptualism requires a particular kind of power to deploy concepts (...) prior to experience, but not the sort referenced in the intuitive constraint mentioned above. I end by proposing how the conceptualist might satisfy this constraint. I conclude that conceptualism is better situated to account for primitive concept acquisition than typically thought. (shrink)

One of the central debates in contemporary Kant scholarship concerns whether Kant endorses a “conceptualist” account of the nature of sensory experience. Understanding the debate is crucial for getting a full grasp of Kant's theory of mind, cognition, perception, and epistemology. This paper situates the debate in the context of Kant's broader theory of cognition and surveys some of the major arguments for conceptualist and non-conceptualist interpretations of his critical philosophy.

To explain perceptual justification, McDowell proposes so-called “conceptualism,” the view that the content of experience is all conceptual. Tony Cheng, in his book, John McDowell on Worldly Subjectivity (2021), suggests that McDowell can do without conceptualism. To support his suggestion, Cheng makes several contentions against McDowell’s thesis of the co-extensiveness of conceptuality and rationality. In this commentary, I focus on two most crucial contentions Cheng makes: (i) conceptualism is an extra commitment for explaining perceptual justification and (ii) (...) it can be replaced by a suitable structural constraint on non-conceptual content. First, I clarify McDowell’s co-extensiveness thesis and his conception of the conceptual. Then, based on my clarifications, I defend conceptualism against the two contentions. (shrink)

In this paper I argue that Kant’s theory of spatial representation supports a Moderate Conceptualist view of his theory of intuition, according to which Kantian intuitions depend for their objective purport on actualizations of spontaneity in a particular kind of synthesis. In making the case for this I focus on three aspects of the theory of spatial representation: the distinction Kant draws between what he calls the original representation of space and the representations of determinate spaces; the doctrine of the (...) productive imagination; and the related doctrine of the a priori determination of sensibility by understanding. I introduce Moderate Conceptualism, explain why these three aspects support it, and consider a number of objections. (shrink)

Truth implies mind because falsity does and the same analysis must be given of each. Some philosophers (Aristotle, Brentano) express this by saying that ‘true’ and ‘false’ apply strictly speaking to judgments and derivatively to everything else. A consequence of this is that all non‐judgmental senses of ‘true’ and ‘false’ include some relation to a judgment. But counterexamples to this occur. So an alternative assay must be sought which both covers all cases and retains the idea that truth is mind‐dependent. (...) Under this correction, something is true if and only if it conforms to an ideal standard or measure. This broader view of truth is compatible with realism and conceptualism but not with nominalism. If there are independent reasons for rejecting realism, it follows that conceptualism is true and universals exist only in minds. (shrink)

Whether Husserl is a conceptualist has been heatedly debated among contemporary Husserl scholars. The present article intends to join the debate by asking the question of how, in the Husserlian context, intuitive acts fulfill signitive ones. On the one hand, those who take Husserl to be a conceptualist hold the content-identity theory, arguing that intuitive act and signitive act have the same content, so that the former can fulfill the latter. On the other hand, the non-conceptualists defend the object-identity theory (...) and claim that it is the identity of object of intuitive and signitive act that makes fulfillment possible. On the basis of a careful reading of the sixth investigation of Husserl’s Logical Investigations, the article proposes a dynamic content-identity theory, in which the identity of content does not mean that intuitive act and signitive act have the identical content accidentally, but rather, in the dynamic fulfillment process, the intuitive act obtains the content that overflows into it from the signitive act, so that the two acts have the identical content. And this article shows how the dynamic content-identity theory places Husserl in the conceptualist camp while avoiding certain difficulties of either plain content-identity theory or object-identity theory. (shrink)

I advance a type of conceptualist argument for substance dualism – minimally, the view that we are spiritual substances that have bodies – based on the understandability of what it would be for something to be a spirit, e.g. what it would be for God to be a spirit. After presenting the argument formally, I clarify and defend its various premises with a special focus on what I take to be the most controversial one, namely, if thinking matter is metaphysically (...) possible, it is not the case that we have a distinct positive concept of God's being a divine spirit. (shrink)

According to philosophers such as McDowell and Brewer, the contents of perceptual experience are conceptual. This view came to be known as Conceptualism. However, a number of critics have argued that they are wrong in thinking this, for they claim that there is an argument, the so-called Fineness of Grain Argument, which is valid and sound, and has as its consequence the falsity of Conceptualism. Although McDowell and Brewer seem to acknowledge that the Fineness of Grain Argument, if (...) valid and sound, has as its consequence the falsity of Conceptualism, they have ways of answering to the argument. In this paper, I will grant the proponents of Conceptualism that one of their ways of answering to the Fineness of Grain Argument is successful, and that the argument can be blocked. But I will argue that, even if this is the case, we have good reasons to think that Conceptualism is false. For there is another argument, that I will call the Constitution Argument, that has as its conclusion the falsity of Conceptualism. I show that the Constitution Argument is valid and sound, in which case we have good reasons to think that Conceptualism is false. (shrink)

A first-order formulation of Leśniewski's ontology is formulated and shown to be interpretable within a free first-order logic of identity extended to include nominal quantification over proper and common-name concepts. The latter theory is then shown to be interpretable in monadic second-order predicate logic, which shows that the first-order part of Leśniewski's ontology is decidable.

Conceptualism is the thesis that, for any perceptual experience E, (i) E has a Fregean proposition as its content and (ii) a subject of E must possess a concept for each item represented by E. We advance a framework within which conceptualism may be defended against its most serious objections (e.g., Richard Heck's argument from nonveridical experience). The framework is of independent interest for the philosophy of mind and epistemology given its implications for debates regarding transparency, relationalism and (...) representationalism, demonstrative thought, phenomenal character, and the speckled hen objection to modest foundationalism. (shrink)

Wiggins’ third book on substance Sameness and Substance Renewed is renewing his second one, Samenes and Substance, from 1980. The renewal is substantial, and is summarized by author himself in the Preface: completely new chapters are added, like the one on vagueness and identity; some important ones are completely rewritten, and fertile ideas from Putnam and Kripke are incorporated into the argument, bringing it in line with mainstream views on meaning and reference. The book deserves to be reviewed as a (...) new work, so I shall refrain here from looking back to its already famous ancestor. (shrink)

Abstract: In Mind and World, McDowell conceives of the content of perceptual experiences as conceptual. This picture is supposed to provide a therapy for skepticism, by showing that empirical thinking is objectively and normatively constrained. The paper offers a reconstruction of McDowell's view and shows that the therapy fails. This claim is based on three arguments: 1) the identity conception of truth he exploits is unable to sustain the idea that perception-judgment transitions are normally truth conducing; 2) it could be (...) plausible only from an externalist point of view that is in tension with the view of normativity that motivates conceptualism; 3) the identity conception of truth is incompatible with McDowell's recent version of conceptualism in terms of ‘non-propositional intuitive contents’. (shrink)

The contemporary debate over God and abstract objects is hampered by a lack of conceptual clarity concerning two distinct metaphysical views: absolute creationism and divine conceptualism. This confusion goes back to the fount of the current debate, the article “Absolute Creation” by Thomas Morris and Christopher Menzel, who were not of one mind concerning God’s relation to abstract objects. Confusion has followed in their wake. Going forward, theistic philosophers need to distinguish more clearly between a sort of modified Platonism, (...) according to which abstract objects depend ontologically on God, and a sort of divine psychologism, according to which objects typically thought to be abstract are, in fact, concrete mental entities of some sort. (shrink)

Consider a visual field containing two red spots of the same shade of red. At least two sentences are true of it, namely, "this is red" and "that is red." Any satisfactory ontological analysis of this visual field must therefore do justice to the two facts that there are two spots and not merely one; and, that these two spots nevertheless have something in common.

I argue that in his aesthetics, Kant puts forward arguments that help to answer the question of whether he is a conceptualist or a non-conceptualist. The current debate on Kantian conceptualism and non-conceptualism has completely overlooked the importance of Kant’s aesthetics. There are two candidates for non-conceptuality in Kant’s aesthetics. First, non-conceptual content plays a crucial role in aesthetic evaluation. Second, non-conceptual content has a systematic explanatory function in the theory of aesthetic creation of the genius of art. (...) Accordingly, my argument proceeds in two steps: In first analyse the role of non-conceptual content in aesthetic evaluation, i.e., Kant’s claim that aesthetic experience is cognition of a special kind that does not bear on conceptual activities. In then look at the role of non-conceptual content in the genius’s creation of artwork. I argue that art production does not imply conceptual activity and therefore seems to count as a second systematic instance of Kantian non-conceptualism. If my argument is correct, then Kant’s aesthetics implies non-conceptualism with respect to aesthetic evaluation but does not in any objective sense with respect to aesthetic creation. (shrink)

I put forward an analysis of Beeple's "Everydays: The First 5000 Days" (2021), a set of digital images that attracted much attention when an NFT attached to it was sold for over $69 at a Christie's auction in March 2021. I submit that, developing on the tradition of conceptual art, Beeple presented for intellectual appreciation the performance of selling for a very high price an NFT attached to a set of digital images with peculiar ontological status, rather than the images (...) themselves. In so doing, Beeple produced an artwork that can be appreciated without direct acquaintance with it, exploring, among other things, a brilliant solution for bringing art to the public during pandemic time. (shrink)

A recent debate in Kant scholarship concerns the role of concepts in Kant's theory of perception. Roughly, proponents of a conceptualist interpretation argue that for Kant, the possession of concepts is a prior condition for perception, while nonconceptualist interpreters deny this. The debate has two parts. One part concerns whether possessing empirical concepts is a prior condition for having empirical intuitions. A second part concerns whether Kant allows empirical intuitions without a priori concepts. Outside of Kant interpretation, the contemporary debate (...) about conceptualism concerns whether perception requires empirical concepts. But, as I argue, the debate about whether Kant allows intuitions without empirical concepts does not show whether Kant is a conceptualist. Even if Kant allows intuitions without empirical concepts, it could still be that a priori concepts are required. While the debate could show that Kant is a conceptualist, I argue it does not. Finally, I sketch a novel way that the conceptualist interpreter might win the debate—roughly, by arguing that possessing a priori concepts is a prior condition for having appearances. (shrink)

This article advances a new account of Kant’s views on conceptualism. On the one hand, I argue that Kant was a nonconceptualist. On the other hand, my approach accommodates many motivations underlying the conceptualist reading of his work: for example, it is fully compatible with the success of the Transcendental Deduction. I motivate my view by providing a new analysis of both Kant’s theory of perception and of the role of categorical synthesis: I look in particular at the categories (...) of quantity. Locating my interpretation in relation to recent research by Allais, Ginsborg, Tolley and others, I argue that it offers an attractive compromise on this important theoretical and exegetical issue. (shrink)

In this paper we (i) identify the notion of ‘essentially non-conceptual content’ by critically analyzing the recent and contemporary debate about non-conceptual content, (ii) work out the basics of broadly Kantian theory of essentially non-conceptual content in relation to a corresponding theory of conceptual content, and then (iii) demonstrate one effective application of the Kantian theory of essentially non-conceptual content by using this theory to provide a ‘minimalist’ solution to the problem of perceptual self-knowledge which is raised by Strong Externalism.

William Lane Craig’s God over All argues against the kind of “divine conceptualism” about abstract objects which I defend. In this conference presentation I note several points of agreement with and appreciation for Craig’s important work. I then turn to five points of critique and response pertaining to: the sovereignty-aseity intuition, the reality of false propositions, God’s having “inappropriate” thoughts, propositions being purely private and incommunicable, and a consistent view of God’s own ontological commitments. I conclude by summarizing our (...) two key differences, indicating that we may have much more in common than first appears. (shrink)

Traditional rationalist approaches to a priori epistemology have long been looked upon with suspicion for positing a faculty of rational intuition capable of knowing truths about the world apart from experience. Conceptualists have tried to fill this void with something more empirically tractable, arguing that we know a priori truths due to our understanding of concepts. All of this theorizing, however, has carried on while neglecting an entire cross section of such truths, the grounding claims that we know a priori. (...) Taking a priori grounding into account poses a significant challenge to conceptualist accounts of a priori knowledge, as it is unclear how merely understanding conceptual connections can account for knowledge of grounding. The fact that we do know some grounding truths a priori, then, is a significant mark in traditional rationalism’s favor, and the next frontier for those who aim to eliminate the mystery surrounding a priori knowledge. (shrink)

Some recent surveys of the modern philosophical debate over the existence of non-conceptual perceptual content have concluded that the distinction between conceptual and non-conceptual representations is largely terminological. To remedy this terminological impasse, Robert Hanna and Monima Chadha claim that non-conceptualists must defend an essentialist view of non-conceptual content, according to which perceptual states have representational content whose structure and psychological function are necessarily distinct from that of conceptual states. Hanna and Chadha additionally suggest that non-conceptualists should go “back to (...) Kant” to find the most defensible version of an essentialist content non-conceptualism. I propose instead that non-conceptualists go back even further to the seventh-century Indian Buddhist philosopher Dharmakīrti, so that they may not only find historical precedent for an essentialist content view, but also some better arguments in its favor. This essay reconstructs Dharmakīrti's essentialist non-conceptualism about the contents of conscious sensory representations and the refined theory of conceptualization that it presupposes. In particular, I examine his arguments from the proprietary phenomenology of sensory experience, the cognitive encapsulation of sensory processing, as well as the iconic format of sensory representations, and assess the strength of these arguments relative to their modern counterparts. (shrink)

This paper is about the nature of the relationship between (1) the doctrine of Non-Conceptualism about mental content, (2) Kant's Transcendental Idealism, and (3) the Transcendental Deduction of the Pure Concepts of the Understanding, or Categories, in the B (1787) edition of the Critique of Pure Reason, i.e., the B Deduction. Correspondingly, the main thesis of the paper is this: (1) and (2) yield serious problems for (3), yet, in exploring these two serious problems for the B Deduction, we (...) also discover some deeply important and perhaps surprising philosophical facts about Kant's theory of cognition and his metaphysics. (shrink)

The species concept is one of the central concepts in biological science. Although modern systematics speculates about the existence of a complex hierarchy of nested taxa, biological species are considered particularly important for the active role they play in evolution. However, neither theoretical biologists nor philosophers of biology have come to an agreement about what a species is. In this chapter, we address two questions pertaining to biological species: (1) are they individuals or universals? and (2) are they bona fide (...) or fiat entities? In section The Species-as-Individuals View, we illustrate the reasons that have led many scholars to support the view that species are individuals. In the next two sections, we show that the relational concepts of species – on which the species-as-individuals view is based – provide neither necessary nor sufficient conditions for species membership. This seriously undermines the species-as-individuals view. In the section A Conceptualist Model for the Metaphysics of Species, we advance the proposal that species are fiat concepts (and thus, universal entities partially dependent on the human mind) carved in a multi-dimensional space representing the properties that the biological organisms possess. The final section concludes. (shrink)

It is often claimed that the beginnings of Brentano’s ontology were Aristotelian in nature; but this claim is only partially true. Certainly the young Brentano adopted many elements of Aristotle’s metaphysics, and he was deeply influenced by the Aristotelian way of doing philosophy. But he always interpreted Aristotle’s ideas in his own fashion. He accepted them selectively, and he used them in the service of ends that would not have been welcomed by Aristotle himself. The present paper is an exposition (...) of the development of Brentano’s ontology, beginning with the Lectures on Metaphysics first delivered by Brentano in Würzburg in 1867 and concluding with his late work from 1904–1917. (shrink)