M. J. Levett's elegant translation of Plato's _Theaetetus_, first published in 1928, is here revised by Myles Burnyeat to reflect contemporary standards of accuracy while retaining the style, imagery, and idiomatic speech for which the Levett translation is unparalleled. Bernard William’s concise introduction, aimed at undergraduate students, illuminates the powerful argument of this complex dialogue, and illustrates its connections to contemporary metaphysical and epistemological concerns.

This paper sets out to re-examine the famous Wax Tablet model in Plato's Theaetetus, in particular the section of it which appeals to the quality of individual souls' wax as an explanation of why some are more liable to make mistakes than others (194c-195a). This section has often been regarded as an ornamental flourish or a humorous appendage to the model's main explanatory business. Yet in their own appropriations both Aristotle and Locke treat the notion of variable wax quality as (...) an important part of the model's utility in dealing with mistake. What, then, is its status for Plato? I shall argue that the section on variable wax quality is there to suggest to the reader a tempting way of misinterpreting the model. This will highlight the distinctive character of the model in its original version, and provide an unusual example of a philosopher describing how not to read one of his own doctrines. (shrink)

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)

This paper offers a new defense of the externalist interpretation of the kataleptic impression. My strategy is to situate the kataleptic impression within the larger context of the Stoic account of expertise. I argue that, given mastery in recognizing the limitations of her own state of mind, the subject can restrict her assent to kataleptic impressions, even if they are phenomenologically indistinguishable from those which are not kataleptic.

This article is a return to a theme I first tackled in “The Stoic criterion of identity” : the Academics’ ‘Growing Argument’ and the Stoic response to its attack on diachronic identity. This time my aim is to separate out approximately five different stages of the debate between the two schools. This will be done by shifting more of the focus onto developments that seem likely to belong to the late second and/or early first century BC.

In this paper I explore a famous part of Plato’s Theaetetus where Socrates develops various models of the mind (picturing it first as a wax tablet and then as an aviary full of specimen birds). These are to solve some puzzles about how it is possible to make a mistake. On my interpretation, defended here, the discussion of mistakes is no digression, but is part of the refutation of Theaetetus’s thesis that knowledge is “true doxa”. It reveals that false doxa (...) is possible only if there is a certain stock of abstract knowledge, conceptual knowledge, that is not awareness of the particular individual that is being described. The individual must be identified under some description, or seen as something of a certain kind. Error can only occur if the description applied misdescribes the situation, but then if it is to be applied falsely it must first have been known from somewhere else. So knowledge cannot be reduced to the application of descriptions to particulars, but is to be found in the prior possession of abstract descriptions that can be deployed in identifying particular individuals on the ground. (shrink)

In this paper, I clarify some central aspects of Stoic thought concerning identity, identification, and so-called peculiar qualities (qualities which were seemingly meant to ground an individual’s identity and enable identification). I offer a precise account of Stoic theses concerning the identity and discernibility of individuals and carefully examine the evidence concerning the function and nature of peculiar qualities. I argue that the leading proposal concerning the nature of peculiar qualities, put forward by Eric Lewis, faces a number of objections, (...) and offer two constructive suggestions which turn upon reconsidering the nature and function(s) of peculiar qualities. Finally, I examine a simple but potent Academic argument against the view that identification requires detecting some attribute(s) unique to the relevant individual. Such an argument is, I argue, largely successful and may have encouraged later Stoics not to think that peculiar qualities enable identification. (shrink)

This paper argues for a view that maximizes in the Stoics' epistemology the starkness and clarity characteristic of other parts of their philosophy. I reconsider our evidence concerning doxa (opinion/belief): should we really take the Stoics to define it as assent to the incognitive, so that it does not include the assent of ordinary people to their kataleptic impressions, and is thus actually inferior to agnoia (ignorance)? I argue against this, and for the simple view that in Stoicism assent is (...) either, in the case of the fool, doxa = agnoia, or alternatively, in that of the sage, epistêmê (knowledge). This view, together with reflection on the appropriate sense of "between" in the relevant reports of SE and Cicero, yields a sympathetic reading of an otherwise problematic challenge Sextus reports Arcesilaus as having prepared for the Stoic claim that katalêpsis, which is the criterion of truth, is between knowledge and opinion; on my view each side is proceeding in a philosophically legitimate way. (shrink)

Plato was central both to the genesis of Stoic theory and to subsequent debates within the Stoa. These essays provide new and detailed explorations of the complex relationship between Plato and the Greek and Roman Stoic traditions, and together they show the directness and independence with which Stoics examined Plato's writing. What were the philosophical incentives to consulting and then returning to Plato's dialogues? To what extent did Plato, rather than Xenophon or Antisthenes, control Stoic reconstructions of Socrates' ethics? What (...) explains the particular focus of Stoic polemic against Plato, and how strong is the evidence for a later reconciliation between Plato and Stoicism? This book will be important for all scholars and advanced students interested in the relationship between a major philosopher and one of the most important philosophical movements. (shrink)

The Stoic theory of knowledge was founded by Zeno on a perceptual and crudely materialistic base, but subsequently developed into an elaborate theory involving λεκτ which has proved difficult to reconstruct. The evolution of the school, influenced not only by internal differences but also by interaction with the Platonic Academy, certainly contributed to this development. Hence any adequate reconstruction of the Stoic theory of knowledge must take account of the differences among the positions of the different representatives of the school (...) with respect to the criticism put foward by the Academics. I propose here to clarify Zeno's position, showing how Arcesilaus' criticism helped to expose certain lacunae and thus to bring about changes in doctrine on the part both of Zeno himself and of his immediate successors. (shrink)

The Stoic theory of knowledge was founded by Zeno on a perceptual and crudely materialistic base, but subsequently developed into an elaborate theory involving λεκτ which has proved difficult to reconstruct. The evolution of the school, influenced not only by internal differences but also by interaction with the Platonic Academy, certainly contributed to this development. Hence any adequate reconstruction of the Stoic theory of knowledge must take account of the differences among the positions of the different representatives of the school (...) with respect to the criticism put foward by the Academics. I propose here to clarify Zeno's position, showing how Arcesilaus' criticism helped to expose certain lacunae and thus to bring about changes in doctrine on the part both of Zeno himself and of his immediate successors. (shrink)

Bobzien presents the definitive study of one of the most interesting intellectual legacies of the ancient Greeks: the Stoic theory of causal determinism. She explains what it was, how the Stoics justified it, and how it relates to their views on possibility, action, freedom, moral responsibility, moral character, fatalism, logical determinism and many other topics. She demonstrates the considerable philosophical richness and power that these ideas retain today.

This collection makes available in English twelve papers by the distinguished French scholar Professor Jacques Brunschwig. The essays deal with problems arising in the texts and doctrines of the three major philosophical schools of the Hellenistic period - Epicureanism, Stoicism and Scepticism. The author's strategy is to focus on some specific problem and then to enlarge the conclusion of his discussion so as to reformulate or reassess some more important issue. The main subjects tackled are: problems in Epicurean cosmology and (...) linguistic theory; aspects of Stoic logic, ontology and theology; the history of Scepticism; and analysis of some of the conceptual tools used by the Sceptics in their anti-dogmatic arguments. (shrink)

Belief and Truth: A Skeptic Reading of Plato explores a Socratic intuition about belief, doxa -- belief is "shameful." In aiming for knowledge, one must aim to get rid of beliefs. Vogt shows how deeply this proposal differs from contemporary views, but that it nevertheless speaks to intuitions we are likely to share with Plato, ancient skeptics, and Stoic epistemologists.

This book argues that political philosophy is central to early Stoic philosophy, and is deeply tied to the Stoics' conceptions of reason and wisdom. Broad in scope, it explores the Stoics' idea of the cosmic city, their notion of citizen-gods, as well as their account of the law.

The doctrines of the Hellenistic Schools - Epicureans, Stoics, and Sceptics - are known to have had a formative influence on later thought, but because the primary sources are lost, they have to be reconstructed from later reports. This important collection of essays by one of the foremost interpreters of Hellenistic philosophy focuses on key questions in epistemology and ethics debated by Greek and Roman philosophers of the Hellenistic period. There is currently a new awareness of the great interest and (...) influence of Hellenistic philosophy. In bringing together a major collection of scholarly and interpretative studies by a leading figure in the field, this volume is a boon to philosophers and classicists who work on the Hellenistic period, but also to students keen to enrich their understanding of the history of epistemology and ethics. (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)