Leibniz's principle of sufficient reason (PSR) is the claim that everything has a sufficient reason. But is Leibniz committed to the necessity or to the contingency of his great principle? I argue that Leibniz is committed to its contingency, given that he allows for the absolute possibility of entities that he claims violate the PSR. These are all cases of qualitatively indiscernible entities, such as indiscernible atoms, vacua, and bodies. However, Leibniz's commitment to the contingency of the PSR seems to (...) stand in tension with his inference of the PSR from his theory of truth. I argue that this apparent tension can be resolved satisfactorily. When it comes to his modal views on the PSR, Leibniz's position is entirely consistent. (shrink)

Who are refugees? Who, if anyone, is responsible for protecting them? What forms should this protection take? In a world of people fleeing from civil wars, state failure, and environmental disasters, these are ethically and politically pressing questions. In this book, David Owen reveals how the contemporary politics of refuge is structured by two rival historical pictures of refugees. In reconstructing this history, he advocates an understanding of refugeehood that moves us beyond our current impasse by distinguishing between what (...) is owed to refugees in general and what is owed to different types of refugee. He provides an account of refugee protection and the forms of international cooperation required to implement it that is responsive to the claims of both refugees and states. At a time when refugee protection is once again prominent on the international agenda, this book offers a guide to understanding the challenges this topic raises and shows why addressing it matters for all of us. (shrink)

The following suggestions for the interpretation of Parmenides and Melissus can be grouped for convenience about one problem. This is the problem whether, as Aristotle thought and as most commentators still assume, Parmenides wrote his poem in the broad tradition of Ionian and Italian cosmology. The details of Aristotle's interpretation have been challenged over and again, but those who agree with his general assumptions take comfort from some or all of the following major arguments. First, the cosmogony which formed the (...) last part of Parmenides' poem is expressly claimed by the goddess who expounds it to have some measure of truth or reliability in its own right, and indeed the very greatest measure possible for such an attempt. Second, the earlier arguments of the goddess prepare the ground for such a cosmogony in two ways. For in the first place these arguments themselves start from assumptions derived from earlier cosmologists, and are concerned merely to work out the implications of this traditional material. And, in the second place, they end by establishing the existence of a spherical universe: the framework of the physical world can be secured by logic even if the subsequent introduction of sensible qualities or ‘powers’ into this world marks some decline in logical rigour. (shrink)

A leading contemporary theory of consciousness in theoretical neuroscience apparently shares significant common ground with a philosophical system of thought from Antiquity. Although chronologically disparate, the integrated information theory of consciousness and Aristotelian metaphysics seem to be akin with regards to fundamental ontology, epistemic priority, and causal powers. In this article, I explore these areas of common ground. Additionally, I consider an apparent dissimilarity regarding panpsychism and suggest that an Aristotelian understanding of powers provides a natural way for IIT to (...) reasonably regulate its ascription of consciousness. (shrink)

In Measuring the Immeasurable Mind: Where Contemporary Neuroscience Meets the Aristotelian Tradition, Matthew Owen argues that despite its nonphysical character, it is possible to empirically detect and measure consciousness. -/- Toward the end of the previous century, the neuroscience of consciousness set its roots and sprouted within a materialist milieu that reduced the mind to matter. Several decades later, dualism is being dusted off and reconsidered. Although some may see this revival as a threat to consciousness science aimed at (...) measuring the conscious mind, Owen argues that measuring consciousness, along with the medical benefits of such measurements, is not ruled out by consciousness being nonphysical. Owen proposes the Mind-Body Powers model of neural correlates of consciousness, which is informed by Aristotelian causation and a substance dualist view of human nature inspired by Thomas Aquinas, who often followed Aristotle. In addition to explaining why there are neural correlates of consciousness, the model provides a philosophical foundation for empirically discerning and quantifying consciousness. En route to presenting and applying the Mind-Body Powers model to neurobiology, Owen rebuts longstanding objections to dualism related to the mind-body problem. With scholarly precision and readable clarity, Owen applies an oft forgotten yet richly developed historical vantage point to contemporary cognitive neuroscience. (shrink)

Are principles of information processing necessary to demonstrate the consistency of statistical mechanics? Does the physical implementation of a computational operation have a fundamental thermodynamic cost, purely by virtue of its logical properties? These two questions lie at the centre of a large body of literature concerned with the Szilard engine (a variant of the Maxwell's demon thought experiment), Landauer's principle (supposed to embody the fundamental principle of the thermodynamics of computation) and possible connections between the two. A variety of (...) attempts to answer these questions have illustrated many open questions in the foundations of statistical mechanics. (shrink)

It is now nearly axiomatic among Platonic scholars that the Timaeus and its unfinished sequel the Critias belong to the last stage of Plato's writings. The Laws is generally held to be wholly or partly a later production. So, by many, is the Philebus, but that is all. Perhaps the privileged status of the Timaeus in the Middle Ages helped to fix the conviction that it embodies Plato's maturest theories.

Some statements couched in the present tense have no reference to time. They are, if you like, grammatically tensed but logically tenseless. Mathematical statements such as ‘twice two is four’ or ‘there is a prime number between 125 and 128’ are of this sort. So is the statement I have just made. To ask in good faith whether there is still the prime number there used to be between 125 and 128 would be to show that one did not understand (...) the use of such statements, and so would any attempt to answer the question. It is tempting to take another step and talk of such timeless statements as statements about timeless entities. If the number 4 neither continues nor ceases to be twice two this is, surely, because the number 4 has no history of any kind, not even the being a day older today than yesterday. Other timeless statements might shake our confidence in this inference: ‘clocks are devices for measuring time’ is a timeless statement, but it is not about a class of timeless clocks. But, given a preoccupation with a favoured set of examples and a stage of thought at which men did not distinguish the properties of statements from the properties of the things they are about, we can expect timeless entities to appear as the natural proxies of timeless statements. (shrink)

In this chapter, it is argued that the Mind-Body Powers model of neural correlates of consciousness provides a metaphysical framework that yields the theoretical possibility of empirically detecting consciousness. Since the model is informed by an Aristotelian-Thomistic hylomorphic ontology rather than a physicalist ontology, it provides a philosophical foundation for the science of consciousness that is an alternative to physicalism. Our claim is not that the Mind-Body Powers model provides the only alternative, but rather that it provides a sufficient framework (...) for empirically detecting and scientifically studying consciousness. Elsewhere, the integrated information theory’s prediction about the neural correlate of being conscious has been used to illustrate how the Mind-Body Powers model grounds the possibility of empirically detecting consciousness (see M. Owen, 2021, ch. 8). The theory’s prediction was used as one plausible example of a hypothesis about the nature and location of the neural correlate that can be combined with the model. However, there is no settled conclusion about which neurobiological theory of consciousness accurately identifies the neural mechanisms corresponding to being conscious (NAS, 2021, p. 39; Sattin et al., 2021; Seth, 2017; Seth & Bayne, 2022). Therefore, this work will employ another plausible neurobiological prediction provided by the Temporal Circuit Hypothesis. The hypothesis is combined with the Mind-Body Powers model to demonstrate that empirically detecting consciousness is metaphysically plausible wholly apart from a physicalist framework. (shrink)

I examine several alleged grounds of the principle of sufficient reason in Leibniz’s philosophy. These include the nature of a requisite and a sufficient condition, the nature of truth, and the nature of harmony. I argue that Leibniz does not ground the PSR in any of these ways. Instead, he is committed to a value-based grounds of the PSR: God creates the best possible world, and the fact that the PSR obtains in this world contributes to it being the best. (...) I conclude by considering some objections to this way of grounding the PSR. (shrink)

For phenomenological psychopathologists an important methodological question is which philosopher, or philosophical corpus, one is going to draw on to help organize and illuminate raw psychopathological data. For the main phenomenological psychopathologists of the past this involved selecting from among phenomenological philosophers and keeping close to them to varying degrees. For Minkowski it was Bergson, for von Gebsattel it was Scheler, and for Binswanger it was Heidegger and then Husserl. A question that arises is what makes the choice of philosopher (...) non-arbitrary?A pragmatist, or pluralist, answer to this question which I tend to favor is that psychopathologists... (shrink)

This paper offers an overview of consciousness and personal identity in eighteenth-century philosophy. Locke introduces the concept of persons as subjects of consciousness who also simultaneously recognize themselves as such subjects. Hume, however, argues that minds are nothing but bundles of perceptions, lacking intrinsic unity at a time or across time. Yet Hume thinks our emotional responses to one another mean that persons in everyday life are defined by their virtues, vices, bodily qualities, property, riches, and the like. Rousseau also (...) takes persons to be fundamentally determined by our socially-mediated emotional responses to one another, though unlike Hume or Locke, he has little interest in placing this account of persons alongside a larger discussion of the human mind and its operations. Developing this idea further, Kant argues that our moral commitments require that we must take ourselves to be free. The fundamental equality that Rousseau sought in the political order is, for Kant, a requirement that reason puts on all of us. (shrink)

Arguing that Arendt and Foucault can both be seen as engaged in the practice of genealogy, this article starts by sketching the background figures of Heidegger and Nietzsche that they hold in common and situates their relations to Nietzsche as emerging from dissatisfaction with the lack of historical groundedness in Heidegger’s philosophy. To develop this case and to provide that basis for some comparison between their approaches and diagnoses of the contemporary condition, it then offers an analysis of each of (...) Arendt and Foucault against this Heidegger-Nietzsche background. Finally I draw attention to some salient similarities and differences between Arendt and Foucault that can provide a basis for critical dialogue between them. (shrink)

Shapiro (Philos Q 61:320–342, 2011) argues that, if we are deflationists about truth, we should be deflationists about logical consequence. Like the truth predicate, he claims, the logical consequence predicate is merely a device of generalisation and more substantial characterisation, e.g. proof- or model-theoretic, is mistaken. I reject his analogy between truth and logical consequence and argue that, by appreciating how the logical consequence predicate is used as well as the goals of proof theory and model theory, we can be (...) deflationists about truth but not logical consequence. (shrink)

This essay argues that realism in ethics and in politics is best understood as a discipline of mind directed against wishful thinking. Reading Geuss in this context, against the background of the work of Bernard Williams, allows us to specify what is of value in his work as well as to illustrate the limitations – of argument and of tone – of that work. More specifically, it is argued that while the fairly catholic character of Geuss′s realism is a strength, (...) his critical considerations of theorists such as Rawls and Nozick and concepts such as human rights not only show little intellectual grasp of these positions, but also typically fail to respect his own criteria for understanding and evaluating political theories. (shrink)

By the courtesy of the editors I have been allowed to see Mr. A. Y. Campbell's “observations on two emendations of Ausonius suggested by me in C.Q. XXVII. 178 ff. Meanwhile I have learned from Mr. E. Harrison, of Trinity College, Cambridge, that, in the Cambridge Philological Society's Proceedings, 1924, p. 27, since Alcestis is meant, cp. Juv. 6, 652 spectant subeuntem fata mariti / Alcestim et, similis si permutatio detur, morte viri cupiant animam servare catellae, he had already proposed (...) to ‘read pro nece functa viri,’ thus anticipating my pro nece and Mr. Campbell's funere. As the Cambridge Phil. Soc. Proc. are inaccessible to me and are not to be discovered in theBodleian Library, I was ignorant of Mr. Harrison's proposal. I am glad that we concur. (shrink)

Discusses the history of animal rights ; laws about how animals are treated; moral issues involved in using animals in such fields as medical research and..