The present PhD dissertation aims to examine the relation between modality and change in Aristotle’s metaphysics. -/- On the one hand, Aristotle supports his modal realism (i.e., worldly objects have modal properties - potentialities and essences - that ground the ascriptions of possibility and necessity) by arguing that the rejection of modal realism makes change inexplicable, or, worse, banishes it from the realm of reality. On the other hand, the Stagirite analyses processes by means of modal notions (‘change is the (...) actuality of what is virtual insofar as it is virtual’). In other words: to grasp what change is, one has to resort to the modal idiom of potentialities, while the fact that there is change is indicative of the fact that nature is full of modal properties. -/- Aristotle’s modal and kinetic realism finds a negative in the figure of the Megaric Diodorus Kronus. The polemical situation of Greek philosophy has indeed the dialectical advantage of not opposing the Aristotelian position to a sui generis straw man. Both in its reduction of modal judgements to temporal quantifications and in its dissolution of the reality of the state-of-being-in-motion in favour of a cinematographic view of processes, the philosophical figure of reductionist antirealism embodied by Diodorus constitutes an alternative that takes the opposite view of Aristotle’s realism. -/- The present study is structured as a discussion between these two positions. In the face of Diodorus’ antirealist challenges, Aristotle articulates modal and kinetic considerations: the answers he gives to Diodorus’ puzzles thus provide valuable insight into his metaphysics. Moreover, the examination of Aristotle’s and Diodorus’ metaphysics, because of their insight and originality, will not fail to interest the philosopher concerned with the metaphysical foundations of modern physics, insofar as the entanglement between modalities and processes is nowadays at the core of mechanics (phase spaces, path integrals, etc.). (shrink)

In this paper, I examine how the Mode of Infinite Regress functions in Pyrrhonian scepticism. I argue that it is used both to generate an infinite regress of reasons and to show that such infinite regresses are epistemically defective. I clarify precisely how this occurs while examining the Mode’s efficaciousness and whether ancient philosophers might have accepted infinite regresses of reasons. I ultimately argue that they would not for reasons which have hitherto not been adequately appreciated and which shed further (...) light on how the Mode of Infinite Regress functions, its efficacy, and the relevant notions of justification at stake. (shrink)

Method in philosophical counselling is still a contentious topic. That is, there is no consensus on whether the philosophical counsellor should have a method in her practice to help the counsellee resolve philosophical problems. Some philosophical counsellors claim that there should not be any rigid adherence to method(s) as this will render philosophy too dogmatic. Philosophical counselling, in light of this view, promotes a kind of mutual philosophising sans definite goal with the counsellee. What I call "dissentient philosophical counselling" takes (...) this claim even further: the philosophical counsellor lives/practices her philosophical counselling, that is, she embodies and practices philosophy as a way of life. This view is posed as a response to contemporary conceptualisations of philosophical counselling where the philosophical counsellor might stand in a disembodied relationship with her method(s) and tries to have a conversation "from nowhere". Dissentient philosophical counselling, even though more focused on living philosophically , still suffers from certain shortcomings. In this paper, I firstly showcase how even the seemingly innocuous but important question "How might one live?" suffers from a lack of much needed nuance. And secondly, I introduce, via a fictional narrative, a provisional way of practicing this reworked dissentient philosophical counselling. I do this by, firstly, introducing African conversational philosophy, via its method of conversationalism, and secondly, I introduce a peculiar version of Pyrrhonian scepticism especially regarding the notion of bios adoxastōs (life without dogma). (shrink)

Parallels between the ancient Hellenistic philosophies of the Stoics and Epicureans, on the one hand, and modern cognitive psychotherapy, on the other, are well known and a topic of current discussion. The present article argues that there are also important parallels between Pyrrhonism, the third of the major Hellenistic philosophies, and the currently state-of-the-art “3rd wave” cognitive-behavioral therapies in general, and Acceptance and Commitment Therapy (act) in particular. This provides a crucial insight into Pyrrhonism: understanding Sextus’ term adoxastos using the (...) technical act term ‘defusion’ illuminates the psychological condition of the Pyrrhonist and explains why the apraxia objection against Pyrrhonism is misguided. (shrink)

There is a long history of philosophers granting a privileged epistemic status to cognition of directly present objects. In this paper, I examine three important historic accounts which provide different models of this cognitive state and its connection with its objects: that of the Stoics, who are corporealists and think that ordinary perception may have an epistemically privileged status, but who seem to struggle to accommodate non-perceptual cognizance; that of Augustine, who thinks that incorporeal objects are directly present to us (...) in ‘intellectual perception’, and that, by way of contrast, ordinary sense-perception does not have a privileged epistemic status; and that of William of Ockham, who allows for unmediated action at a distance and is fairly generous about what counts as being directly present. (shrink)

The Stoics thought that knowledge depends on a special kind of appearances which they called ‘apprehensive’, which are by definition true. Interestingly, Sextus Empiricus reports in M 7.247 that they held that there are appearances that are true but that are not apprehensive because they are true merely by chance and thus cannot constitute knowledge. I believe that this suggests that the Stoics were aware of what is in modern literature known as the problem of epistemic luck. Unfortunately, Sextus’ report (...) leaves out a lot of important details, which makes it difficult to understand exactly which appearances the Stoics thought are true by chance, and why. I argue that the true non-apprehensive appearances in question here are imaginations, representational states which are not immediately caused by external objects through perception, but produced solely by the mind. I propose an explanation why the Stoics, who defined chance in terms of hidden causes, would have thought that imaginations can only be true by chance. The explanation stems from their view that the essential characteristic of imagination is that it leaves the actual cause of its representational content hidden from the subject. (shrink)

Sextus Empiricus associates the skeptical stance with the activity of inquiry or investigation. My purpose in this paper is to examine the Pyrrhonist's involvement in that activity because getting an accurate understanding of the nature and purpose of skeptical inquiry makes it possible to delineate some of the distinctive traits of Pyrrhonism as a kind of philosophy. I defend the minority view among specialists according to which (i) Sextus describes both the prospective Pyrrhonist and the full-fledged Pyrrhonist as inquirers into (...) truth, and (ii) the full-fledged Pyrrhonist can, without inconsistency, engage in truth-directed inquiry. (shrink)

Tarski's analysis of the concept of truth gives rise to a hierarchy of languages. Does this fragment the concept all the way to philosophical unacceptability? I argue it doesn't, drawing on a modification of Kaplan's theory of indexicals.

The aim of this paper is to show how PH II constitutes an original, ambitious, and unified skeptical inquiry into logic. My thesis is that Sextus’s argument in Book II is meant to accomplish both its stated goal (to investigate the topics typically grouped together by dogmatists under the heading of “logic”) and an unstated goal. The unstated goal is, in my view, interesting in itself and sheds new light on Sextus’s methodology. The goal is: to suspend judgement on the (...) effectiveness of dogmatic methodologies. (shrink)

Epicurean epistemology is usually summarised in a controversial thesis according to which all perceptions are true. Although it seems very problematic and counterintuitive, careful investigation of the main sources shows us that Epicurus ’ claim for the truth of perceptions is not so hasty but is supported with some serious arguments. In the paper, I examine the thesis according to which “all perceptions are true”, but my main focus is to analyse the content of Epicurean perception through the following questions: (...) what kind of content do Epicurean perceptions have; what are the proper objects of perception; can we ascribe to such content truth and falsity? In the first part, I say something general about the thesis and point out some basic characteristics of perceptions due to which they serve as a criterion of truth. Next I try to show that the proper objects of perceptions are eidola and not external objects because only in that case can Epicurus maintain the truth of all perceptions, including illusions, hallucinations, dreams and other misperceptions. In the third part, I argue that such Epicurean perceptual content can be explained by the modern notion of non-conceptual content, which helps us to understand the special feature of Epicurean perceptions and also the important difference between perception and belief in Epicurean epistemology. In the final part, I discuss the notion of alethes which I suggest implies that perception is “factive”. (shrink)

This paper engages with Svavar Svavarsson’s recent essay, “Sextus Empiricus on Persuasiveness and Equipollence,” arguing against both (i) his interpretation of whether two rival arguments appear equipollent to the Pyrrhonist because he himself is equally persuaded by both of them, and (ii) his interpretation of the way in which the argument from possible disagreement is supposed to induce suspension of judgment in the Pyrrhonist. In so doing, I aim to dispel some serious misunderstandings regarding key aspects of the Pyrrhonist’s skeptical (...) outlook and argumentative practice. (shrink)

This paper examines the Stoic account of apprehension (κατάληψις) (a cognitive achievement similar to how we typically view knowledge). Following a seminal article by Michael Frede (1983), it is widely thought that the Stoics maintained a purely externalist causal account of apprehension wherein one may apprehend only if one stands in an appropriate causal relation to the object apprehended. An important but unanswered challenge to this view has been offered by David Sedley (2002) who offers reasons to suppose that the (...) Stoics (or at least Zeno, the founder of the Stoa) did not make such a causal stipulation. I offer a defence of the traditional, causal reading against the challenges raised by Sedley but also argue, against the traditional view, that the Stoic account incorporated an internalist element. On the hybrid account defended here, in order to apprehend not only must the agent stand in an appropriate causal relation to the object apprehended but the agent’s appearance of the object must also be clear (a feature which is accessible to the epistemic agent). The traditional scholarly view rejects internalist interpretations because it is thought that such interpretations cannot make sense of the Stoics’ discussion of the ‘automatic assent’ produced by kataleptic appearances and a purely externalist view is taken to be charitable insofar as it saves the Stoics from a vicious regress which they would otherwise face (were they internalists). I spell out how the regress might be taken to function and defend an internalist interpretation against both these charges. The internalist element embraced by the Stoics does not lead to the problems it is often thought to and the account defended here not only does justice to the textual evidence but also sheds light on the Stoic debates with their sceptical opponents and grants the Stoics an epistemic account fit for purpose. (shrink)

Much of present-day epistemology is divided between internalists and externalists. Different as these views are, they have in common that they strip justification from its dialectical component in order to block the skeptic’s argument from disagreement. That is, they allow that one may have justified beliefs even if one is not able to defend it against challenges and resolve the disagreements about them. Lammenranta (2008, 2011a) recently argued that neither internalism nor externalism convinces if we consider the argument in its (...) most interesting format. In this paper I zoom in on this debate, and fix further details of Lammenranta’s lead. Specifically, I will side with skepticism that justification is dialectical, yet only if certain conditions are in place. (shrink)

Pyrrhonism was one of the two main ancient skeptical traditions. In this second paper of the three‐part series devoted to ancient skepticism, I present and discuss some of the issues on Pyrrhonian skepticism which have been the focus of much attention in the recent literature. The topics to be addressed concern the outlooks of Pyrrho, Aenesidemus, and Sextus Empiricus.

Scholarship on ancient skepticism has undergone a remarkable renaissance in the last three decades. Specialists in ancient philosophy have explored the complex history of the Greco‐Roman skeptical traditions and discussed difficult philological and exegetical issues. But they have also assessed the philosophical significance of the various ancient skeptical outlooks. In this first paper, I provide a general presentation of this area of study, while in the two subsequent articles I will focus on some of the topics that have been the (...) object of much attention in the recent literature on ancient skepticism. (shrink)

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. (shrink)

Abstract: In this paper I discuss Sextus Empiricus' response to the dogmatists' objection that the skeptics cannot inquire into philosophical theories and at the same time suspend judgment about everything. I argue that his strategy consists in putting the burden of proof on the dogmatists: it is they, and not the skeptics, who must justify the claim to be able to inquire into the nature of things. Sextus' arguments purport to show that if we consider the dogmatists' inquiry, we should (...) conclude either that it is impossible or that it does not supply the skeptics with satisfactory starting-points for further inquiry. (shrink)

With regards the crucial issue of the existence of the self, within canonical texts of the Buddhist Abhidharma schools we find passages that are frequently at odds with one another. Sometimes the Buddha defends or respects the belief in the self and in personal continuity; at other times he seems to deny that beyond the psycho-physical factors to which our existential experience can be reduced there is an ātman that contains, owns or controls these same factors; in further cases still, (...) he states that the use of the metaphysical categories of “being” and “non-being” must be avoided – thus, about the self (or everything else), it is inappropriate to say that it exists or that it does not exist. Faced with these divergences (or contradictions) within contemporary Buddhist studies, we can detect two main tendencies. Some scholars start from the assumption that the Buddha’s teaching is or should be coherent and univocal, and, therefore, propose readings of his original message that are supposed to iron out or conciliate any inconsistencies. Others believe that the inconsistencies are actually irreconcilable and, therefore, maintain that the Abhidharma canons are a composite and stratified redaction in which the opposite views of different writers overlap and intersect. Against these historiographical approaches, the purpose of the present paper is to show that the three aforementioned modes of the Buddha’s teaching are, in fact, both alternative and irreconcilable. This, however, far from presenting a puzzle to be solved or explained (by resorting to suppositions of which, in the canons, we have no explicit confirmation), is nothing more than a feature of the Buddha’s Dharma, which appears to be a teaching that develops different pedagogical/soteriological modes for different purposes, and which is conceived for the spiritual growth of followers with different intellectual and psychological profiles. (shrink)

Sextus responds to the Dogmatists’ criticism that the Sceptics cannot investigate Dogmatic theses, formulating his own version of Meno’s puzzle against them. He thus forces them to adopt υοεῐυ ἁπλῶς – a way of thinking that does not carry any commitment to the reality of what someone thinks – as their only solution to the puzzle and as the necessary starting point of their investigation. Nοεῐυ ἁπλῶς avoids Dogmatic assumptions without making use of the Sceptical argumentation that leads to suspension (...) of judgment. It constitutes a novel answer to Meno’s puzzle, Dogmatism- and Scepticism-free, with important consequences both for Dogmatism and for Scepticism. (shrink)

Dowód pierwszej tezy Gorgiasza jest dedukcyjnym wnioskowaniem nie wprost, skon-struowanym przez wielokrotne użycie schematu modus tollens. Te z jego przesłanek, które przyjęte są bez dowodów, są łudząco podobne do niektórych prawd logicznych lub analitycznych. Gdyby rzeczywiście nimi były, w dowodzie musiałyby pojawić się sprzeczności. W czasach Gorgiasza dowód mógł uchodzić za poprawny; możliwość jasnego wskazania i opisania jego defektów poja-wiła się dopiero z wynalezieniem logiki formalnej. Gorgiasz mógł ogłosić swą tezę serio –jako tezę skrajnego nihilizmu metafizycznego –nie obawiając się kompromitacji. (...) Jeżeli dowód jest sofizma-tem, to wśród sofizmatów jest arcydziełem, najwybitniejszym osiągnięciem sofistów w tej dziedzi-nie. (shrink)