The paper argues that the view that the particular quantifier is ‘existentially loaded’ is a relatively new one historically and that it has become entrenched in modern philosophical logic for less than happy reasons.

In the twenty-fourth aporia of Theophrastus' Metaphysics, there appears an important, if ‘bafflingly elliptical’, ascription to Plato and the ‘Pythagoreans’ of a theory of reduction to the first principles via ‘imitation’. Very little attention has been paid to the idea of Platonic and ‘Pythagorean’ reduction through the operation of ‘imitation’ as presented by Theophrastus in his Metaphysics. This article interrogates the concepts of ‘reduction’ and ‘imitation’ as described in the extant fragments of Theophrastus’ writings – with special attention to his (...) Metaphysics – in an attempt to make sense of how, precisely, Theophrastus characterizes the metaphysical systems of Plato and the ‘Pythagoreans’. A fuller examination of Aporia 24 produces important new understandings of the nature of the Early Academy in the mid fourth century B.C.E. Specifically, by ascribing the concept of reduction via ‘imitation’ to Plato and the ‘Pythagoreans’, Theophrastus is actually describing theories about the structure of the universe held by an important Platonist competitor and the contemporary head of the Academy in Athens, Xenocrates of Chalcedon (396/5–314/13 B.C.E.), who (a) took it upon himself to establish a Platonic doctrine that could be associated with his master’s writings and (b) coordinated that doctrine with the philosophical precepts of the Pythagoreans. As a consequence, we are prompted to question Aristotle’s famous ascription of a theory of ‘imitation’ to the metaphysics of the genuine contemporary or recently deceased Pythagoreans (such as Philolaus of Croton or Archytas of Tarentum) and consider how Xenocrates’ writings on Plato and the ‘Pythagoreans’ might be informing both Theophrastus’ and Aristotle’s descriptions of the Platonic and Pythagorean philosophical system(s). (shrink)

I discuss Aristotle’s opening argument against Platonic Forms in _Metaphysics_ A.9, ‘the Razor’, which criticizes the introduction of Forms on the basis of an analogy with a hypothetical case of counting things. I argue for a new interpretation of this argument, and show that it involves two interesting objections against the introduction of Forms as formal causes: one concerns the completeness and the other the adequacy of such an explanatory project.

There has been a long tradition of interpreting Plato as a rational egoist. Over the past few decades, however, some scholars have challenged this reading. While Rational Egoism appeals to many ordinary folk, in sophisticated philosophical circles it has fallen out of favor as a general and complete account of the nature of reasons for action. I argue that while the theory of practical rationality that is often equated with rational egoism—a view that I call ‘Simple-Minded Rational Egoism'—is neither plausible (...) nor endorsed by Plato in his Republic, there is a more complex version of Rational Egoism to which Plato is indeed committed. Moreover, such a conception of practical rationality is not vulnerable to the standard set of objections that contemporary philosophers have made against Rational Egoism. (shrink)

ABSTRACTAt least in some dialogues, Plato has been thought to hold the so-called Two Worlds Theory, according to which there can be belief but not knowledge about sensibles, and knowledge but not belief about forms. The Phaedo is one such dialogue. In this paper, I explore some key passages that might be thought to support TW, and ask whether they in fact do so. I also consider the related issue of whether the Phaedo argues that, if knowledge is possible at (...) all, we can have it only when discarnate. (shrink)

This study investigates the problem of the natural universal in the works of Mullā Ṣadrā. The problem of universals made its way into Arabic/Islamic philosophy via its Greek sources, and was transformed into the problem of natural universals by Avicenna. Weighing in on this problem, Ṣadrā reinterprets the nature of natural universals against the backdrop of his doctrine of “the primacy of being.” As he argues, a natural universal or quiddity qua quiddity is an “accidental being” that requireswujūdfor its existentiation. (...) Thus, Ṣadrā re-envisions the status of natural universals by stripping them of their disputed status as independently existing entities.RésuméDans cette étude je me propose de réfléchir sur le problème de l'universel naturel dans l’œuvre de Mullā Ṣadrā. Le problème des universaux s'est introduit dans la philosophie arabe et musulmaneviales sources grecques et s'est trouvé transformé en celui des “universaux naturels” aux mains d'Avicenne. En contribuant à son tour à l’évolution de ce problème, Ṣadrā réinterpréta le statut des universaux naturels à partir de sa propre doctrine de la “primauté de l’être”. Selon lui, un universel naturel ou “quiddité en tant que quiddité” est un “être par accident” qui requiertwujūdpour son existentiation. Ainsi, Ṣadrā re-envisage le statut des universaux naturels en les privant de leur statut contesté en tant qu'entités “indépendantes existantes”. (shrink)

The expression tode ti, commonly translated as ‘a this’, plays a key role in Aristotle’s metaphysics. Drawing lightly on theories of demonstratives in contemporary linguistics, I discuss the expres...

One of the hardest questions to answer for a (Neo)platonist is to what extent and how the changing and unreliable world of sense perception can itself be an object of scientific knowledge. My dissertation is a study of the answer given to that question by the Neoplatonist Proclus (Athens, 411-485) in his Commentary on Plato’s Timaeus. I present a new explanation of Proclus’ concept of nature and show that philosophy of nature consists of several related subdisciplines matching the ontological stratification (...) of nature. Moreover, I demonstrate that for Proclus philosophy of nature is a science, albeit a hypothetical one, which takes geometry as its methodological paradigm. I also offer an explanation of Proclus’ view of what is later called the mathematization of physics, i.e. the role of the substance of mathematics, as opposed to its method, in explaining the natural world. Finally, I discuss Proclus’ views of the discourse of philosophy of nature and its iconic character. (shrink)

In this paper I use the traditional image of Plato as swan to suggest that interpreting Plato should not be a matter of getting to know what his doctrines are (a doctrinal approach), but rather a of getting to know Plato himself (a knowledge by acquaintance approach). I argue that the dialogues encourage the knowledge by acquaintance approach and discourage the doctrinal approach, through the use of Platonic anonymity, Platonic irony and Platonic self-effacement. I point out how the knowledge by (...) acquaintance approach values the rich diversity of historical opinions about Plato, whereas the doctrinal approach seeks to resolve such diversity once and for all. Even though the doctrinal approach has powerful tools at its disposal—such as the testimony of Aristotle, the principle that the main speaker in a dialogue is Plato’s mouthpiece, and stylometric analysis—the product of a doctrinal approach is a brand of Platonism that is weak, rigid, and ultimately dispensable. The philosophy of Plato is worthy of more respect than that, and it repays such respect with wider understanding. (shrink)