Plato is commonly considered a metaphysical dualist conceiving of a world of Forms separate from the world of particulars in which we live. This paper explores the motivation for postulating that second world as opposed to making do with the one we have. The main objective is to demonstrate that and how everything, Forms and all, can instead fit into the same world. The approach is exploratory, as there can be no proof in the standard sense. The debate between explaining (...) Plato’s ontology with a single world and requiring a two-world model to make sense of the same thing is typically about scouring the Platonic corpus for evidence and turning to Aristotle for help where we need it. The aim here is to dig deeper than what either of them, or anyone else, has said or implied about the number or worlds, searching instead for any insight that might be gained from the way Forms are supposed to exist versus what we ourselves might understand by existence. Although the paper is, at its most basic level, about the existence of the Forms, the intention is not to prove that they exist, nor to evaluate the proofs and objections already on record, but to consider how they might exist and what follows if they do. Dialogue toward consensus on why we think the Forms exist, and why we think they do not, could perhaps provide a smoother “second sailing” in waters where we have been unable to agree whether they do and where they would if they did. (shrink)

John Mackie famously dismissed the rational tenability of moral objectivism with two quick arguments. The second, the so-called “argument from queerness,” proceeds as follows. A commitment to moral objectivism brings with it a commitment to the existence of moral properties as “queer” as Platonic Forms that are apprehended only through occult faculties like so-called “moral intuition” (Mackie 1977, 38). Since we have no reason to believe that there is any faculty such as moral intuition that serves as a reliable Form (...) detector, we equally have no reason to accept moral objectivism (1977, 23–24, 38–41). Recently, Julia Annas has observed that Mackie has offered us “a coarse and imperceptive interpretation of Plato,” in addition to a mistaken account of the epistemic requirements of moral objectivism (2001, 238). But one might worry that the case Annas makes for the homely nature of Platonic moral knowledge—it’s just like plumbing, only non-optional (2001, 246)—rests, as she admits, on her focus on dialogues like the Laches, in which the analogy between the moral virtues and crafts like flute-playing, shoe-making, and navigating is emphasized (2001, 244). Annas explicitly leaves open the question whether Mackie’s interpretation might capture Plato’s conception of moral knowledge in dialogues like the Republic, in which the analogy between moral and mathematical knowledge is emphasized (2001, 243). Yet it is clear from Mackie’s brief remarks about Plato that he has the Republic primarily in mind (Mackie 1977, 23–24). (shrink)

Few arguments from the past have stirred up as much interest as Aristotle’s “Third man” and not so many texts have received as much attention as its account in chapter 22 of the Sophistici elenchi. And yet, several issues about both remain highly controversial, starting from the very nature of the argument at stake and the exact signification of some of its features. The essay provides a close commentary of the text, dealing with its main difficulties and suggesting an overall (...) interpretation of Aristotle’s discussion of the “Third Man” argument. (shrink)

Corrective intervention in Plato's metaphysics replacing the standard view of Plato as a metaphysical dualist with a novel and revolutionary paradigm of unitary pluralism in a single reality built on ontological diversity.

What does Plato mean in saying that, for all forms, “F-ness is F”? In such claims, I argue, ‘F’ is being used metonymically to refer to the property of being productive of F-ness rather than to the property of being F, in a way consistent with univocity and the rejection of a genuine Self-Predication Assumption. I explain and defend this productive metonymy reading and show how it can resolve the troubling argument at Phaedo 74b7-c6.

In Plato’s Timaeus, two different theories – the Receptacle theory and the geometrical particle theory – are presented to explain change in the natural world. In this paper, I argue that there is tension between the two theories. After examining several possible solutions for this tension, I conclude that Plato does not present it as something ready to be solved within the dialogue but, rather, as something to be understood in a way that maintains both theories. Finally, I also argue (...) that the contrast between the two theories in the Timaeus derives from a similar contrast in the Phaedo. (shrink)

Dans cet article, la pairepros ta alla/pros heautodans leParménidede Platon est analysée dans les termes d’une distinction entre la prédication ordinaire (où un individu présente une qualité) et la prédication en arborescence (fondée sur la relation qui s’établit entre un X et un Y lorsque la nature X fait partie de la nature Y). J’engage une discussion avec mes critiques en soutenant que cette interprétation donne tout leur sens aux remarques méthodologiques de Platon, tout en rendant son argumentation plus efficace. (...) LeParménidefait le pont entre les dialogues de maturité et les développements techniques des derniers dialogues de Platon. (shrink)