This paper considers a principal concept of metaphysics – the category of substance – as it figures in Kant’s critical program of establishing metaphysics as a science. Like Leibniz, Kant identifies metaphysical concepts through logical reflection on the form of cognitive activity. He thus begins with general logic’s account of categorical judgment as an act of subordinating predicate to subject. This categorical form is then considered in transcendental logic with reference to the possibility of its real use. Transcendental reflection reveals (...) that the categorical form, in its potential for such use, constitutes the category of substance and accident, representing a first real subject and a determination of its existence. But to qualify for objective, scientific employment, metaphysics’ concepts must admit of real definitions, which show their objects to be possible, and such possibility, pace Leibniz, can be established only in relation to possible experience. Thus, relying on his doctrine of the schematism, Kant shows the category to figure constitutively in experience, as the ground of the first law of nature, that in all change substance persists. (shrink)

I argue for three main claims about Leibniz. (1) He views representation as a kind of structural correspondence between the representing thing and its target. (2) The primary sense in which he considers a perception or representation distinct, as opposed to confused, concerns the degree to which its structure is explicit or consciously accessible. (3) This is also the sense in which he takes concepts or ideas to be distinct.

In the Monadology Leibniz has us imagine a thinking machine the size of a mill in order to show that matter can’t think. The argument is often thought to rely on the unity of consciousness and the notion of simplicity. Leibniz himself did not see matters this way. For him the argument relies on the view that the qualities of a substance must be intimately connected to its nature by being modifications, limitations of its nature. Leibniz thinks perception is not (...) a modification of matter because it is active and matter is passive. At the same time, there are traces in Leibniz of a different argument that relies on the notion of internal action, which may involve the notion of simplicity. Critics have sometimes charged that the Mill Argument is an argument from ignorance, but Leibniz was aware of this problem and made clear that he did not make that mistake. (shrink)

In this paper I consider a cluster of positions which depart from the immortalist and dualist anthropologies of Rene Descartes and Henry More. In particular, I argue that John Locke and Isaac Newton are attracted to a monistic mind-body metaphysics, which while resisting neat characterization, occupies a conceptual space distinct from the dualism of the immortalists, on the one hand, and thoroughgoing materialism of Thomas Hobbes, on the other. They propound a sort of property monism: mind and body are distinct, (...) with distinct characteristics and functions, but are, nevertheless, ontologically interdependent. Consciousness ? the locus of personhood, and thus, a necessary condition for personal immortality ? is an embodied phenomenon; its preservation requires the life and proper functioning of the body. Dying with the dissolution of his body, then, man is a compound wholly mortal. Nevertheless, both Locke and Newton accepted the possibility of personal immortality; with Hobbes, both looked to the Biblical promise of bodily resurrection. For with the re-vitalization of the body ? and a subsequent restoration of consciousness and memory ? personal identity is preserved, even beyond the grave. (shrink)

J. L. Mackie's famous claim that Locke ‘anticipates’ Kripke's Causal Theory of Reference (CTR) 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 this paper, I consider Isaac Newton’s fevered accusation that John Locke is a ‘Hobbist.’ I suggest a number of ways in which Locke’s account of the mind–body relation could plausibly be construed as Hobbesian. Whereas Newton conceives of the human mind as an immaterial substance and venerates it as a finite image of the Divine Mind, I argue that Locke utterly deflates the religious, ethical, and metaphysical significance of an immaterial soul. Even stronger, I contend that there is good (...) reason to suspect that Locke is a crypto-materialist, at least with respect to human beings, and in this respect, could reasonably be labeled a ‘Hobbist.’. (shrink)

As is well known, the linguistic/philosophical reflection on natural kind terms has undergone a remarkable development in the early seventies with Putnam and Kripke’s essentialist approaches, touching upon different aspects of Kan’s slant. Preliminarily, however, it might be useful to review some of the theoretical stages in Locke and Leibniz’s approaches on natural kind terms in the light of contemporary reflections, to eventually pinpoint Kant’s contribution and see how some commentators have placed it within the theory of direct reference. Starting (...) with textual evidence even from the logical corpus, in the present essay I will attempt to discuss some of the arguments dismissing Kant’s adherence to this view. These assume that in his approach to the semantics of natural kind Kant appears to be still holding on to a nominalist/conceptualist position, though he seems to be well aware of a few key issues for the theorists of direct reference. (shrink)

Two books on Whitehead, a major study by the noted philosopher of science, Isabelle Stengers, and a shorter one by Didier Debaise are reviewed, along with two earlier mathematical and scientific works by Whitehead himself, which have been re-issued. This provides the basis for a wide-ranging discussion of the relationships between Whitehead's love of poetry and Heidegger's approach to it, Whitehead's background in mathematics and theoretical physics and his attitude to empirical science and more general problems of the philosophy of (...) the event, in particular how radical change can come about. (shrink)

In this article, I develop a higher-order interpretation of Leibniz's theory of consciousness according to which memory is constitutive of consciousness. I offer an account of Leibniz's theory of memory on which his theory of consciousness may be based, and I then show that Leibniz could have developed a coherent higher-order account. However, it is not clear whether Leibniz held (or should have held) such an account of consciousness; I sketch an alternative that has at least as many advantages as (...) the higher-order theory. This analysis provides an important antecedent to the contemporary discussions of higher-order theories of consciousness. (shrink)

In this paper I argue against the received view that the anti‐nativist arguments of Book I of Locke's Essay conclusively challenge nativism. I begin by reconstructing the chief argument of Book I and its corollary arguments. I call attention to their dependence on (what I label) “the Awareness Principle”, viz., the view that there are no ideas in the mind of which the mind either isn't currently aware or hasn't been aware in the past. I then argue that the arguments' (...) dependence on this principle is question begging on two counts. Unless this principle is defended, Locke's arguments beg the question against Descartes and Leibniz because their nativism implies the denial of the Awareness Principle. And even when Locke defended the principle, his arguments remain question begging because they presuppose the empiricism they aim to prove. The disclosure of the question‐begging status of these arguments debunks a seemingly powerful way of attacking nativism. (shrink)

El presente trabajo de investigación tiene por objetivo reconstruir la noción de identidad práctica tanto en Aristóteles como en Leibniz, a fin de mostrar en qué medida el hannoveriano es deudor del Estagirita y en qué medida se distingue una propuesta de la otra. Para lograr esto hacemos dos cosas: por un lado, analizamos la noción aristotélica de praxis y de agencia moral a la luz de su noción de habituación; por otro lado, damos cuenta de la dimensión práctica que (...) el hannoveriano adscribe a su noción de identidad personal, a partir de sus nociones de conscientia y cualidad moral. -/- The purpose of this research is to reconstruct the notion of practical identity in both Aristotle and Leibniz in order to show to what extent, the Hanoverian is indebted with Aristotle and to what extent one proposal can be distinguished from the other. To achieve this we do two things: on the one hand, we analyze the Aristotelian notion of praxis and moral agency trough his notion of habituation; on the other hand, we notice the practical dimension that Leibniz assigns to his notion of personal identity, based on his notions of conscientia and moral quality. (shrink)