Conceiving Prime Matter in the Middle Ages: Perception, Abstraction and Analogy

In its formlessness and potentiality, prime matter is a problematic entity of medieval metaphysics and its ontological limitations drastically affect human possibility of conceiving it. In this article, I analyse three influential strategies elaborated to justify an epistemic access to prime matter. They are incidental perception, negative abstraction, and analogy. Through a systematic and historical analysis of these procedures, the article shows the richness of interpretations and theoretical stakes implied by the conundrum of how prime matter can be known by human beings. In particular, the reasons behind the later medieval acceptance of analogy as the main way to unveil prime matter become clearer by pointing out the correlation between the ontological and epistemological levels of the medieval examination of prime matter.

Temperance and Epistemic Purity in Plato’s Phaedo

In this paper I examine the moral psychology of the Phaedo and argue that the philosophical life in this dialogue is a temperate life, and that temperance consists in exercising epistemic discernment by actively withdrawing assent from incorrect evaluations the body inclines us to make. Philosophers deal with bodily affections by taking a correct epistemic stance. Exercising temperance thus understood is a necessary condition both for developing and strengthening rational capacities, and for fixing accurate beliefs about value. The purification philosophers strive for, and the purifying role of philosophy, should then be understood as a clarificatory act consisting in making one’s thoughts clear and withdrawing assent from erroneous evaluative content in our desires and pleasures. Along the way, I argue that philosophers must neither avoid situations and activities that cause bodily affections as much as possible, nor ignore or care little about them.

Categories in Topics I 9: A New Plea For a Traditional Interpretation

The list of katēgoriai presented at the start of Top. I 9 was traditionally interpreted as a version of the canonical Aristotelian list of categories, and as largely equivalent to the list we find in Categories 4. Accordingly, its first item, the ‘what it is’, was identified with the category of substance. This interpretation has been challenged by several scholars, all sharing the view that the ‘what it is’ in Top. I 9 cannot be substance, since it collects items belonging to all Aristotelian categories (e. g. human being, colour, length). Rather, they say, it is a manner of predication – i. e. essential predication – and can only determine an ontologically miscellaneous class of items. Against this family of proposals, I argue afresh that the traditional interpretation is almost entirely correct. To this purpose, I take advantage of the distinction between kinds of predicate and kinds of predication.

Causal Priority in Metaphysics Θ.8

Aristotle’s Metaphysics Θ.8 argument for the priority of actuality to potentiality poses an immediate interpretive problem: the argument uses two distinct tests for priority, one of which threatens to reverse the results of the other. This paper argues that the standard approach to this passage, according to which one thing is prior to another when it satisfies the ontological independence test from Metaphysics Δ.11, fails to secure the argumentative unity of the passage. It introduces a new, causal account of priority which explains both Aristotle’s claims about priority and the way he argues for them.

Locke, Simplicity, and Extension

This paper aims to clarify Locke’s distinction between simple and complex ideas. I argue that Locke accepts what I call the “compositional criterion of simplicity.” According to this criterion, an idea is simple just in case it does not have another idea as a proper part. This criterion is prima facie inconsistent with Locke’s view that there are simple ideas of extension. This objection was presented to Locke by his French translator, Pierre Coste, on behalf of Jean Barbeyrac. Locke responded to Barbeyrac’s objection, but his response, along with a passage from Chapter XV of Book II of the Essay, “Of Duration and Expansion, considered together,” has been taken to show that he did not accept the compositional criterion. I examine these passages and argue that they are not in tension with but rather affirm that criterion.

The Analysis of False Judgement According to Being and Not-Being in Plato’s Theaetetus (188c10–189b9)

The version of the paradox of false judgement examined at Tht. 188c10–189b9 relies on the assumption that to judge falsehoods is to judge the things which are not. The presentation of the argument displays several syntactic ambiguities: at several points it allows the reader to adopt different syntactic connections between the components of sentences. For instance, when Socrates says that in a false judgement the cognizer is “he who judges the things which are not about anything whatsoever” (188d3–4), how should the clause “about anything whatsoever” be construed? In common with “he who judges” and “the things which are not” (in which case the cognizer would be “he who judges about anything whatsoever the things which are not about it”), or exclusively with “he who judges” (in which case the cognizer would be “he who judges about anything whatsoever the things which are not”)? The most plausible answer is that both construals are envisaged. Accordingly, the argument has two branches corresponding to these two alternative construals. In particular, it attempts to show that in both cases the cognizer will address what does not exist – an impossibility. The idea that a false judgement is concerned with what is not about its reference has a clear echo in the Sophist. The way in which the problem is handled in the Theaetetus provides a hint that can help to find a solution for the hotly debated issue of the interpretation of the Sophist’s account of false statement.

Life, Lawfulness, and Contingency: Kant and Schelling on Organic Nature

In the Critique of the Power of Judgment, Kant calls purposiveness the “lawfulness of the contingent”. I argue that this should be interpreted not as lawfulness assumed in order to remove unacceptable mechanical indeterminacy, but rather as an additional kind of lawfulness which, in the case of organisms, inexplicably coincides with mechanical determination. Schelling adapts Kant’s notion of natural purposiveness in his own conception of the relation between mechanism and organism. He states in his 1798 work, On the World Soul, that nature is “lawless in its lawfulness, and lawful in its lawlessness”. This should be interpreted similarly: there is a coincidence of two orders of lawfulness in nature. However, while Kant maintains that the coincidence or unity of these two orders is inexplicable for beings like us, Schelling explains the unity by assigning these laws to distinct levels of operation in nature. Organic organization is generated by a second-order operation of an organic principle on the first-order mechanical forces that are characteristic of matter. Schelling thereby builds on Kant’s third Critique framework in a creative way in order to offer a more fully unified account of nature. In this account, mechanism and organism maintain distinct roles but are both grounded in a further, higher principle.

Expert Impressions in Stoicism

We focus on the question of how expertise as conceived by the Stoics interacts with the content of impressions. In Section 1, we situate the evidence concerning expert perception within the Stoic account of cognitive development. In Section 2, we argue that the content of rational impressions, and notably of expert impressions, is not exhausted by the relevant propositions. In Section 3, we argue that expert impressions are a subtype of kataleptic impressions which achieve their level of clarity and distinctness due to the contribution of expertise. In Section 4, we argue that the expertise in living well not only allows the wise person to assent correctly but also affects the content of her impressions. We suggest that these two models – one’s attitude toward an impression being informed by expertise, and one’s impressions being affected by expertise – might characterize distinct stages of cognitive development. Stoic wisdom is not only a matter of the way one assents to one’s impressions but also a matter of the condition of one’s soul and, consequently, of the kinds of impressions one even entertains. Expertise offers a model of how cognitive and discriminatory improvement through practice and effort can transform the non-wise into the wise. A reading on which the content of impressions is not exclusively propositional illuminates a further aspect of this transformation. If the same propositions are accessible through impressions with different non-propositional content, we can account for cases in which the novice and the expert entertain the same proposition.