The form of the Good in Plato’s Phaedo and Republic seems, by our standards, to do too much: it is presented as the metaphysical princi­ple, the epistemological principle and the principle of ethics. Yet this seemingly chimerical object makes good sense in the broader context of Plato’s philosophical project. He sought certain knowledge of neces­sary truths (in sharp contrast to the contingent truth of modern science). Thus, to be knowable the cosmos must be informed by timeless princi­ples; and this leads (...) to teleology and the Good. The form of the Good, it is argued, is what makes the world knowable insofar as it is knowable. This interpretation plugs a significant gap in the scholarship on the Good and draws attention to a deep connection between Plato’s episte­mology and his teleological understanding of the cosmos. (shrink)

I argue that these inconsistencies in wording and practice reflect the existence of two distinct Aristotelian views of inquiry, one peculiar to the Posterior Analytics and the other put forward in the Physics and practiced in the Physics and in other treatises. Although the two views overlap to some degree (e.g. both regard a rudimentary understanding of the subject as an essential first stage), the view of the syllogism as the workhorse of scientific investigation and the related view of inquiry (...) as a search for the ‘missing middle terms’ turn out to be ideas peculiar to the Analytics. Conversely, the techniques of analysis and differentiation highlighted in the Physics account receive only cursory attention in the Analytics. However, when we consider the character of Aristotle’s own inquiries, on both scientific and philosophical topics, it becomes clear that it is the Physics rather than the Posterior Analytics that gives us Aristotle’s considered view the path to knowledge. (shrink)

Aristotle is sometimes committed to a pattern of inference that moves from complexity offunctioning to complexity in the entity's metaphysical structure. This article argues that Aristotle rejects this inference in the case of the basic essence, the ultimate differentia that determines the kind to which the entity belongs. Specifically, the functional difference between active and passive reasoning in humans is not matched in the structure of the basic human essence. The basic essence is an immediate unity in the strong sense (...) that it is wholly without structural parts. Complex rational functioning emerges from a metaphysically simple basic essence. (shrink)

In Aristotle's views on cognition a series of terms – hupolêpsis, doxa, and epistêmê – play key roles. But it has not been noticed that each of these comes in two kinds – one unqualified and the other qualified. When these and their interrelations are properly explored, a deeply systematic picture of cognition emerges, in which doxa is best understood as ‘belief’, hupolêpsis as ‘supposition’, and epistêmê as a sort of belief, so that – contrary to orthodoxy – we can (...) have belief and knowledge of the same things at the same time. Many of these conclusions are shown to mark a continuity with Plato, in that neither thinker, it is argued, holds a so-called ‘two-worlds’ picture of cognition. (shrink)

This essay focuses on a recently prominent notion of ground which is distinctive for how it links metaphysics to explanation. Ground is supposed to serve both as the common factor in diverse in virtue of questions as well as the structuring relation in the project of explaining how some phenomena are “built” from more fundamental phenomena. My aim is to provide an opinionated synopsis of this notion of ground without engaging with others. Ground, so understood, generally resists illumination by appeal (...) to more familiar models of explanation. Nevertheless, its distinctive explanatory and metaphysical aspects guide us on characterizing its explanatory logic and its metaphysical features. Some issues concerning the meta-question of what grounds ground are explored, as well as some recent skeptical challenges to ground. (shrink)

Aristotle holds that individual substances are ontologically independent from nonsubstances and universal substances but that non-substances and universal substances are ontologically dependent on substances. There is then an asymmetry between individual substances and other kinds of beings with respect to ontological dependence. Under what could plausibly be called the standard interpretation, the ontological independence ascribed to individual substances and denied of non-substances and universal substances is a capacity for independent existence. There is, however, a tension between this interpretation and the (...) asymmetry between individual substances and the other kinds of entities with respect to ontological independence. I will propose an alternative interpretation: to weaken the relevant notion of ontological independence from a capacity for independent existence to the independent possession of a certain ontological status. (shrink)

This paper discusses the metaphysical status of artefacts and their forms in the ancient commentators on Aristotle’s Metaphysics. Specifically, it examines the Peripatetic tradition and Alexander of Aphrodisias to then turn to the commentaries of the late Neoplatonist Asclepius of Tralles, and the Byzantine commentator Michael of Ephesus. It argues that Alexander is the pioneer of the interpretation of artefactual forms as qualities and artefacts as accidental beings. The fortune of this solution goes through Asclepius and Michael to influence Thomas (...) Aquinas. (shrink)

Ontological separation plays a key role in Aristotle’s metaphysical project: substances alone are ontologically χωριστόν. The standard view identifies Aristotelian ontological separation with ontological independence, so that ontological separation is a non-symmetric relation. I argue that there is strong textual evidence that Aristotle employs an asymmetric notion of separation in the Metaphysics—one that involves the dependence of other entities on the independent entity. I argue that this notion allows Aristotle to prevent the proliferation of substance-kinds and thus to secure the (...) unity of his metaphysical system. (shrink)