Why would Rene Descartes, the father of modern rationalist philosophy, choose "meditations" -- a term and genre associated with religious discourse and practice -- for the title of his magnum opus that lays the metaphysical foundations for his reform of all knowledge, including mathematics and sciences? Why did he believe that the immortality of the soul and the existence of God, which the Meditations on First Philosophy set out to demonstrate, can only be made self-evident through meditating? These are the (...) question that Christopher Wild's book answers. Descartes discovered the "foundations of a marvelous science" through a dramatic conversion in southern Germany in the winter of 1619. The spiritual and cognitive exercises, derived from ancient philosophy and the Christian meditative tradition, which Descartes deployed in the Meditations, enable readers to discover metaphysical truths with the same degree of self-evidence with which Descartes did during his own conversion. Descartes' meditative turn, Wild argues, brings to a culmination a life-long preoccupation with the practice or craft of thinking, known as Cartesian method. By joining meditation to method the Meditations becomes the founding document for a Cartesian "art of turning," a new practice of both thought and life. (shrink)

One Stoic response to the skeptical indistinguishability argument is that it fails to account for expertise: the Stoics allow that while two similar objects create indistinguishable appearances in the amateur, this is not true of the expert, whose appearances succeed in discriminating the pair. This paper re-examines the motivations for this Stoic response, and argues that it reveals the Stoic claim that, in generating a kataleptic appearance, the perceiver’s mind is active, insofar as it applies concepts matching the perceptual stimulus. (...) I argue that this claim is reflected in the Stoic definition of the kataleptic appearance, and that it respects their more general account of mental representation. I further suggest that, in attributing some activity to the mind in creating each kataleptic appearance, and in claiming that the expert’s mind allows her to form more kataleptic appearances than the amateur, the Stoics draw inspiration from the wax tablet model in Plato’s Theaetetus (190e–196d), where Socrates distinguishes the wise from the ignorant on the basis of how well they match sensory input with its appropriate mental ‘seal’ (σφραγίς). (shrink)

At Varro LL VI.56 and SE M 8.275-276, we find reports of the Stoic view that children and articulate non-rational animals such as parrots cannot genuinely speak. Absent from these testimonia is the peculiar case of the superficiality of the actor’s speech, which appears in one edition of the unstable text of PHerc 307.9 containing fragments of Chrysippus’ Logical Investigations. Commentators who include this edition of the text in their discussions of the Stoic theory of speech do not offer a (...) univocal account of the superficiality of the parrot’s, the child’s, and the actor’s speech. In this paper, I offer a reconstruction of the Stoic account of genuine and superficial speech and show that not only is there an account of superficial speech that univocally explains the superficiality of the speech of parrots, children, and actors, but that this account challenges traditional assumptions about the entities at the heart of the Stoic theory of language—lekta. It will turn out that genuine speech is the expression of a lekton by way of performing a speech act, and that this account of superficial speech can be used to explain other linguistic phenomena that are of interest to the Stoics, such as sentences in insoluble sophisms and sentences containing demonstratives that do not refer to anything in the subject term. Importantly, my reconstruction shows, against the near consensus view of lekta, that lekta do not primarily explain what makes an utterance meaningful. Rather, they primarily explain what makes an utterance an instance of genuine speech. (shrink)

An overview of the ancient philosophers and their philosophical system (divided into the fields of logic, physics, and ethics) comprising the living, organic, enduring, and evolving body of interrelated ideas identifiable as the Stoic perspective.

Here I propose an interpretation of the ancient Stoic psychological theory on which (i) the concepts that an adult human possesses affect the content of the perceptual impressions (φαντασίαι αἰσθητικαί) she forms, and (ii) the content of such impressions is exhausted by an ‘assertible’ (ἀξίωμα) of suitable complexity. What leads the Stoics to accept (i) and (ii), I argue, is their theory of assent and belief formation, which requires that the perceptual impression communicate information suitable to serve as the content (...) of belief. In arguing for (i), I reject a rival interpretation on which conceptualization occurs subsequently to the formation of a perceptual impression. In arguing for (ii), I deny that perceptual impressions have two kinds of content: one formulated in an assertible, the other sensory, featuring independently of this assertible. I explore the implications of (i) and (ii) for the Stoic theory of emotions, expertise, and rationality, and argue that they shed new light on the workings of impression, assent, and belief. (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)

The Stoics identified thephantasiawith the impression (typos) in the soul, or the impressing process (typōsis). Alexander of Aphrodisias engages directly with this account atDe anima68.10–21, and argues against the applicability of the impression in a theory of perception inMantissa10, especially 133.25–134.23. I analyse Alexander’s polemic account atDe anima68.10–21, I demonstrate that it differs from Chrysippus’ criticism of Cleanthes (contrary to some commentators), and I show how it fits in the context of his argument. From this analysis it will emerge how (...) Alexander uses Stoic ideas to form his Aristotelian account. Then, I show that Alexander, by taking ‘typos’ metaphorically, not only prefers the term ‘enkataleimma’ over ‘typos’ in his theory ofphantasia, but he keeps the ‘typos’ terminology only to remain faithful to Aristotle’s use (contrary to some commentators). (shrink)

In the Speech of Pythagoras fromMetamorphoses15, Ovid uses a metaphor of how wax can be stamped with new images to illustrate how theanimacan remain substantially the same while altering in shape when undergoing transmigration. Shortly after he describes how all things are in a state of flux, and compares the flow of time to the movement of a river. In Plato’sTheaetetus, Socrates, in an extended analogy, tells us to imagine that the ψυχή contains a block of wax, upon which are (...) imprinted our memories, while the dialogue also contains a lengthy criticism of the Heraclitean doctrine of flux. This article will argue that Ovid adapts the wax-metaphor from theTheaetetusand that the dialogue also provides the context for Ovid’s allusion to the Heraclitean principle that πάντα ῥεῖ. It will analyse how the wax and river metaphors were transformed in the epistemological theories of the Stoics and the Epicureans in order to demonstrate how Ovid reformulates this series of philosophical discussions for poetic purposes. The final part of this article will discuss how the wax and river metaphors can be read in term of the wider intertextual agenda of the Speech of Pythagoras. (shrink)

El presente trabajo se propone advertir el momento del proceso cognitivo en el cual la habilidad del sabio de controlar sus asentimientos se haría manifiesta; dicho propósito presenta ciertas dificultades dado el marco de un determinismo radical que caracteriza al pensamiento estoico. Por tanto, y con el objetivo de dilucidar tales problemáticas, conjugaremos la existencia de una cadena de determinaciones (que constituye el destino) con la posibilidad de que un individuo cuente con una facultad que 'esté en su poder'. The (...) present paper proposes to notice the cognitive process' moment in which the sage's ability to control his assents would become apparent; this objective presents some difficulties given the context of a radical determinism that characterizes Stoic thought. Therefore, and with the aim of solving such problems, we will conjugate the existence of a determinations' chain (which constitutes fate) with the possibility that a man has a faculty which 'might be in his power'. (shrink)

This paper focuses on Plotinus’ account of the soul’s cognitive powers of sense perception and discursive thought, with particular reference to the treatises 3. 6 [26], 4. 4 [28] and 5. 3 [49] of the Enneads . Part 1 of the paper discusses Plotinus’ direct realism in perception. Parts 2 and 3 focus on Plotinus’ account of knowledge in Enneads 5. 3 [49] 2–3. Plotinus there argues that we make judgements regarding how the external world is by means of discursive (...) reasoning. This latter claim, however, is in tension with what Plotinus argues elsewhere regarding our perceptual apprehension of the external world (3. 6 [26] 1; 4. 4 [28] 23). This puzzle is addressed in Part 3 of the paper, which investigates Plotinus’ view that there exist some sense perceptions of which we are unaware. Finally, Part 4 looks at Plotinus’ understanding of Plato’s famous wax block analogy, in 5. 3 (49). The overall conclusion of the paper is that Plotinus’ account of knowledge is radically different from that of the Cartesian tradition. (shrink)

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. (shrink)

Le terme « perception » apparaît pour la première fois dans son sens philosophique dans les Académiques de Cicéron, où il traduit le terme technique stoïcien κατάληψις, traduit également par compréhension. La perception n’est pas une « perception sensible » au sens moderne du terme, car elle ne se définit pas comme une impression produite en nous par les choses extérieures, mais comme l’assentiment donné à la phantasia dite compréhensive ou perceptive, c’est‑à‑dire celle qui est conforme à son objet, claire (...) et distincte. Il s’agit pour les stoïciens de l’un des critères de la vérité. Pour contester l’existence de la perception et son rôle-clé dans l’épistémologie stoïcienne, les académiciens ont adopté une stratégie en deux temps : affirmer que l’assentiment porte sur des propositions et non sur des représentations, et contester l’existence d’une représentation perceptive, discernable des représentations fausses. Les stoïciens ont répondu sur ces deux points et ont reconstruit la notion de perception inventée initialement par Zénon dans le cadre de cette polémique, qui a forgé la notion classique de la perception. Le continuisme perceptif des stoïciens et leur conception cinématographique de la perception sensible sont les clés de leur conception de la perception. (shrink)

Cette étude examine quelques aspects de la conception de la richesse chez Sénèque et du rapport qu’il nous invite à entretenir avec celle-ci. Nous montrerons que le Cordouan, bien qu’il s’inscrive pleinement dans la voie déjà tracée par les maîtres stoïciens, ne se prive pas, comme c’est souvent le cas chez lui, de présenter le sujet de manière personnelle. Classification JEL : B11.