Plato: Epistemology

At key moments in the Phaedrus and the Republic, Socrates qualifies our capacity to “see” the highest realities (the “place of being,” the “Good beyond being”) with the adverb “mogis” (mogis kathorosa, Phdr. 248a; mogis horisthai, Rep. 517b). Mogis can be used to indicate either the toilsome difficulty of some undertaking or the subject’s proximity to failing to accomplish the undertaking. Socrates uses mogis to qualify the nature of the human soul’s capacity to make the intellectual ascent and see the (...) divine, but it is not prima facie clear whether the qualification is meant to express (1) the difficulty we have in undertaking the intellectual ascent (a comment on the effort required) or (2) the fact that the human soul’s capacity to make the intellectual ascent will, on account of its limitations, only “just barely” be achieved, if at all. After discussing the uses of mogis in classical literature and surveying Plato’s uses of mogis across the corpus, I interpret Plato’s use of mogis at Phaedrus 248a, arguing that mogis kathorosa should be translated as “only gets a good look at the things that are with much toil” rather than the more common “scarcely able to gaze upon the things that are.” I then turn to the parallel passage at Republic 517b and argue against a prominent account, put forward by John Sallis, among others, of Plato’s understanding of divine inaccessibility. Whereas Sallis et al. argue that Plato’s use of mogis indicates that which is to be seen at the acme of the ascent is only “barely glimpsed” on account of the fact that it “withdraws” from our view, I argue instead that Plato’s use of mogis indicates that though we can “get a good look” at the highest realities, that good look is qualified by their inexhaustible excess. The human capacity to see the highest realities is qualified because there is “always more to see,” not because that which is there to be seen “withdraws” from view, and still less because there is some intrinsic limitation to human intellectual vision that prevents us from apprehending the highest realities. Accordingly, the divine is accessible but never exhaustible. (shrink)

This chapter examines Plato’s account of the method of learning by paradeigma (‘model’) in the Statesman. I first explain what the method is. I then consider the two parties who are described as using it: children who are learning to read and write and the dialogue’s two interlocutors. I highlight some parallels between each party’s use of the method. These parallels illuminate important features of dialectical inquiry in general and the Visitor and Young Socrates’ inquiry in particular, including the nature (...) of the knowledge they ultimately hope to achieve and one stage in the complex process by which they aim achieve it. (shrink)

Plato’s Philebus has often been said to lack unity as a dialogue. In particular, what is the relation between the methodological and metaphysical reflections early in the dialogue and the investigations of pleasure and knowledge that constitutes its main subject matter? This chapter argues that Plato’s Philebus provides a division of knowledge (epistēmē), which satisfies the methodological norms explained earlier in the dialogue. In order to make this claim, Socrates is shown to provide an example of a cross-cutting division not (...) unlike those found in the Gorgias and Sophist. With this account of the division in place, we are able to better appreciate how the divine method of inquiry ensures the unity of all forms of knowledge. (shrink)

Ignorance is commonly assumed to be a lack of knowledge in Plato’s Socratic dialogues. I challenge that assumption. In the Protagoras, ignorance is conceived to be a substantive, structural psychic flaw—the soul’s domination by inferior elements that are by nature fit to be ruled. Ignorant people are characterized by both false beliefs about evaluative matters in specific situations and an enduring deception about their own psychic conditions. On my interpretation, akrasia, moral vices, and epistemic vices are products or forms of (...) ignorance, and a person who lacks knowledge is not necessarily ignorant. (shrink)

The main idea of this allegory is the difference between people who simply experience their sensory experiences, and call that knowledge, and those who understand real knowledge by seeing the truth. The allegory actually digs into some deep philosophy, which is not surprising since it comes from Plato. Its main idea is the discussion of how humans perceive reality and if human existence has a higher truth. It explores the theme of belief versus knowledge. The Perception Plato theorizes that the (...) group of people tied up in the cave would assume that the shadows they see on the wall are reality. Plato's theory further states that the echoing sounds the prisoners hear are perceived as reality. This false reality is all that the people in the cave know. They have no true knowledge of the real world. However, they fully believe that what they see on the cave wall is reality, and even try to name the shadows they see passing by. Plato's cave allegory further proposes that one of the prisoners escapes or gains freedom from the cave. The freed prisoner moves toward the fire, which temporarily blinds him. As he gains his eyesight and moves into the real world, he gains a greater sense of reality. (shrink)

It is widely accepted that ruling is the sole prerogative of Plato’s philosopher-rulers because they alone possess knowledge (ἐπιστήμη). This knowledge is knowledge of the Good, taken to be the only knowledge there is in Kallipolis. Let us call this the sufficiency condition thesis (the SCT). In this paper, I challenge this consensus. I cast doubt on the adequacy of the SCT, arguing that part of the training and education of the philosopher-rulers involves their gaining practical wisdom (φρόνησις) and experience (...) (ἐμπειρία). To succeed in this, I have two main aims. First, I argue that the philosopher-rulers must attain optimum cognitive success in these three modes of cognition to function efficiently in ruling. This involves showing that Plato, for his political project, appeals to other senses of cognitive successes besides his strictly metaphysical epistemology. Second, I attempt to demonstrate how these three modes of cognition coalesce or coincide in ruling the perceptible world, especially in the judgement and determination of concrete perceptible matters. (shrink)

Main purpose of this work is to state the ideas of Plato about God, the universe, and the creation of universe. While explaining about his ideas on this subject, not only his time, but also ideas of the philosophers preceding him are taken into consideration. It also includes usual views and belief systems about the God, the universe and the creation of universe during his time. Thus, we had a chance to examine Plato’s ideas about our subject in detail. Our (...) work, which is formed by Literature Reading method, has approached Plato’s ideas and the preceding ideas as different categories, classified each section as the God, the universe, and the creation of universe to examine. (shrink)

The Parmenides has been unduly overlooked in discussions of hypothesis in Plato. It contains a unique method for testing first principles, a method I call ‘exploring both sides’. The dialogue recommends exploring the consequences of both a hypothesis and its contradictory and thematizes this structure throughout. I challenge the view of Plato’s so-called ‘method of hypothesis’ as an isolated stage in Plato’s development; instead, the evidence of the Parmenides suggests a family of distinct hypothetical methods, each with its own peculiar (...) aim. Exploring both sides is unique both in its structure and in its aim of testing candidate principles. (shrink)

Plato’s Theory of Perception This research deals with Plato's perceptual theory, as the perceptual theory in Plato's philosophy represents one of the steps of the Plato’s epistemology. Plato divided knowledge into four categories: Sensory knowledge, presumptive knowledge, mathematical knowledge, and rational knowledge. The theory of sensory perception is in the first place, so this research focuses on the statements, the meaning of perception, the senses, the difference between sensation and mind, the topics of sensory perception, and the nature of the (...) work of sensory perception. (shrink)

At the end of the Meno, Socrates suggests that genuine virtue is knowledge. This is surprising because he has recently concluded that virtue is true opinion. I show that Socrates’ new position is motivated by two commitments. First, that being virtuous requires being responsible for the correctness of one’s actions. Second, that only a knower has this kind of ownership of action. An implication of my argument is that, despite his emphasis on virtuous action in the Meno, Socrates endorses an (...) agent-centred ethics. He thinks the epistemic status of the agent is essential to the assessment of her goodness. (shrink)

The book "Theory of Forms: The Construction of Plato and Aristotle’s Criticism" focuses on two main aspects, construction and criticism. The constriction of Forms theory is the basis on which Plato built all of his philosophy and which influenced all forms of ideas philosophy that emerged after Plato. The research topic was completed by adding Aristotle's critique of the theory of Forms in order to put a clear picture in front of the reader, which was presented by Plato himself and (...) Aristotle's criticism of this theory. -/- Therefore, the book consists four chapters, the first chapter covers the following topics; The philosophical roots of Plato's theory of Forms, The numbers in the Pythagorean school, The Heraclitus' idea of change, Anaxagoras’ idea of Mind, Sophists. Chapter two, Plato's theory of Forms. Definitions of the Forms. The importance of the Forms, The existential and logical significance, Evidence of Forms, Evidence that knowledge is remembering. Chapter Three, Forms and Levels of Knowledge, Dialectic ,Inferential knowledge, Mental knowledge The fourth chapter, The nature of the Forms existence and its being Causes. Forms as numbers and their relationship to movement. The problem of Participation. The final Evaluation of Forms. (shrink)

The Five Greatest Kinds discussed in Plato‘s Sophist are taken to be just one instance of a fivefold structure found in various related texts. Contemporary linguistic theories are a source for ideas about its functioning.

In book X, Plato's rejection of mimetic poetry can be read as a parallel to rejecting the conventions of the poetic style contemporary to his time. This rejection can, owing to the premises derived and the analyses made in this paper, further be read as to suggest that Plato presses for a reformation of the poetic vocabulary. That is, as to suggest that Plato proposes that the non-rational imagistic tradition, embodied in mimetic poetry, get replaced by a rational and noetic-aspiring (...) rhetoric that opts for knowledge and truth. (shrink)

This paper provides an original approach to research on the logical processes that determine how certain forms participate in others. By introducing the concept of relational participation, the problems of self-referentiality of the Platonic forms can be dealt with more effectively. Applying this to the forms of likeness and unlikeness in Parmenides 132d-133a reveals a possible way to resolve different versions of the Third Man Argument. The method of generating numbers from oddness and evenness may also be of interest; relational (...) participation in these forms clarifies the interpretation of Parmenides 143e-144a. (shrink)

En la primera parte del Teeteto Sócrates refuta tres tesis que considera estrechamente vinculadas entre sí: la tesis de Teeteto que identifica conocimientoy percepción, la tesis relativista y la tesis movilista. El propósito de este trabajo es mostrar que en tres de las refutaciones ofrecidas contra estas posiciones se exhibe una misma estrategia tendiente a remitis a un prerrequisito dialéctico vinculado a la pretensión de verdad. ESta constituiría una estrategia radical, en el sentido de que pone en cuestión la misma (...) posibilidad de enmitir la propia tesis por parte del adversario. (shrink)

Emotions ( pathè) such as anger, fear, shame, and envy, but also pity, wonder, love and friendship have long been underestimated in Plato’s philosophy. The aim of Emotions in Plato is to provide a consistent account of the role of emotions in Plato’s psychology, epistemology, ethics and political theory. The volume focuses on three main issues: taxonomy of emotions, their epistemic status, and their relevance for the ethical and political theory and practice. This volume, which is the first edited volume (...) entirely dedicated to emotions in Plato’s philosophy, shows how Plato, in many aspects, was positively interested in these affective states in order to support the rule of reason. (shrink)

In consoling the lover of sights and sounds at Republic 475e4-479d5, Socrates describes a tripartite distinction among knowledge, doxa, and ignorance. Socrates claims that knowledge is ‘over’ what-is, doxa is over what is and is-not, and ignorance is over nothing at all. I argue that Plato shows that doxa and ignorance are also related to what-is. While knowledge, doxa, and ignorance interact with different first-degree objects, these three capacities have a common second-degree object: what-is. The fact that Socrates claims that (...) doxa is inferior to knowledge, and ignorance is inferior to doxa, shows that these three capacities have a shared aspiration that doxa and ignorance each fail to fulfill in their own way. Following Plato’s analogy to the senses at 477c1-d1, I use an analogy to the senses to demonstrate Plato’s understanding of the relationship between doxa and what is. (shrink)

O presente artigo aduz a interpretação de Martin Heidegger do conceito de ἀλήθεια – tradicionalmente traduzido por verdade – na filosofia de Platão, a partir da célebre alegoria da caverna presente na República. Segundo o posicionamento inicial de Heidegger, ἀλήθεια era originalmente pensada pelos gregos como desvelamento até Platão, com quem o sentido do termo se transforma e passa a expressar a retitude da percepção. Contudo, as críticas filológicas proferidas contra Heidegger por Paul Friedländer fizeram com que seu posicionamento histórico-filológico (...) inicial fosse em certa medida alterado, passando a sustentar que os gregos antigos, embora tivessem experimentado o acontecimento original de ἀλήθεια, não foram capazes de expressá-lo como tal. Por conseguinte, Heidegger também abandonou a tese de que houve em Platão uma mudança essencial no sentido de ἀλήθεια. (shrink)

The kind of self-knowledge at issue in the eye-soul analogy of the Alcibiades is knowledge of one’s epistemic state, i.e. what one knows and does not know, rather than knowledge of what one is. My evidence for this is the connection between knowledge of one’s epistemic state and self-improvement, the equivalence of self-knowledge to moderation, and the fact that ‘looking’ into the soul of another is a metaphor for elenctic discussion. The final lines of the analogy clarify that the part (...) of the soul one ‘looks’ into and the part one learns about when learning about one’s epistemic state is divine. (shrink)

This article defends three claims. First, that collection and division in the Phaedrus are described as procedures that underlie human speaking and thinking in general, as well as philosophical inquiry, and are not identified with either. Second, that what sets the dialectical use of these procedures apart from their ordinary use are philosophical suppositions independent of the procedures of collection and division themselves; for that reason, collection and division cannot be identified with dialectic as such. Third, that the second part (...) of the Phaedrus is concerned with the broader question how noble or beautiful speaking, in general, may be said to depend on dialectic as much as it is concerned with the question how rhetoric, as a kind of expertise, is related to dialectic. (shrink)

From my ongoing "Metalogical Plato" project. The aim of the diagram is to make reasonably intuitive how the Socratic elenchos (the logic of refutation applied to candidate formulations of virtues or ruling knowledges) looks and works as a whole structure. This is my starting point in the project, in part because of its great familiarity and arguable claim to being the inauguration of western philosophy; getting this point less wrong would have broad and deep consequences, including for philosophy’s self-understanding. -/- (...) (i.) is the first pass at elenchos in which the Socratic interlocutor does not reflect on knowledge being the crux of the problem. (ii.) is the second, rarer, reflective pass in which they are, making the investigation explicitly about knowledge. Its centrality in the Charmides makes that neglected dialogue of superlative importance. This structure is also the gateway through which the discussion/dialectic crosses into the Agathology (discussion of the form of the good) at Republic 505. -/- The problem of elenchos, then, grasped as a whole structure, is that it seems that knowledge can neither satisfactorily be included in nor excluded from its own scope. The development of the ti esti (“what is ---?”) question leads to the introduction of knowledge into its own scope (i. implicitly, as goodness contrasted with blind rule-following ii. explicitly qua knowledge) while the development of the dual peri tinos (“----about what?) question leads to K’s elimination from its own scope. The introductions are motivated to avoid contradiction, but produce regress; the eliminations are motivated to avoid regress, but produce contradiction. In scholarship, and in the history of philosophy, the ti esti question is universally recognized, to the point of being identified with philosophy’s origin and essence; the peri tinos question is neglected textually and never recognized as the equal dual to the ti esti. This, I claim, has blocked the development of a nontrivial logical appreciation of what Plato's Socrates is up to. (One rather disastrous effect of this neglect is taking Aristotle as the beginning of the development of logic, rather than, correctly, for the beginning of logic’s fatal separation from mathematics and dialectic.) -/- Further, because of this monopticism of the ti esti, the function of consistency in the elenchos has not been understood, even with respect to the ti esti. The ti esti is actually in search of completeness, given a norm of consistency; the peri tinos is in search of consistency, given a norm of completeness. Only appreciating the two questions as dual allows space in the structure to clarify these different orientations relative to consistency. (And, dually, to completeness, whose function in the elenchos is generally entirely missed by scholars and relegated to discussions of eros; it's not out of place there, of course, but its significance is secured here.) Recognizing the duality of the ti esti and peri tinos questions is thus the royal road, in the Socratic-Platonic context, to catching sight of what we post-Cantorians can recognize as the metalogical duality of consistency and completeness. (The salutary disruptive effects of this Plato-Cantor proximity have, of course, been traced in complementary ways by Badiou.) -/- Note that the diagram is supposed to provide a relatively accessible orientation, not to stand on its own, and certainly not to be the last word on any subject. An important qualification (telegraphed in the previous paragraph) is that what elenchos shows is not finally circular or paradoxical, though the problem first presents as such (stubbornly, obdurately, as "difficult" Plato's Socrates always says with characteristic understatement). What is depicted here is meant, at a first pass, to be the shape of that first presentation, the form of the problem of elenchos, rather than of its solution. It's not an accident that this problem strongly resembles "Russell's paradox" (not Russell's not a paradox.) Problem is to solution as RP is to the diagonal theorems. (shrink)

The present chapter investigates Heidegger's early understanding of Platonic dialectic in its contrast to sophistry as this comes to expression in his lectures on Plato's Sophist.

In this paper, I question a widespread reading of a passage in the last part of the Phaedrus dealing with the science of dialectic. According to this reading, the passage announces a new method peculiar to the later Plato aiming at defining natural kinds. I show that the Phaedrus itself does not support such a reading. As an alternative reading, I suggest that the science of dialectic, as discussed in the passage, must be seen as dealing primarily with philosophical rhetoric (...) and knowledge of human souls. (shrink)

The “battle” between corporealists and idealists described in Plato’s Sophist 245e6–249d5 is of significance for understanding the philosophical function of the dramatic exchange between the Eleatic guest and Theaetetus, the dialogue's main interlocutors. Various features of this exchange indicate that the Eleatic guest introduces and discusses the dispute between corporealists and idealists in order to educate Theaetetus in ontological matters. By reading the discussion between Theaetetus and the Eleatic guest in the light of these features, one comes to see that (...) the primary audience for the proposal advanced by the Eleatic guest in this passage, namely that being is power, is not any of the participants in the “battle,” as has been commonly assumed, but Theaetetus himself—a fact to bear in mind in any viable interpretation of the passage. (shrink)

This article explores the motif of psychic nourishment in Plato’s Protagoras. It does so by analyzing what consequences Socrates’ claim that only a physician of souls will be able adequately to assess the quality of such nourishment has for the argument of the dialogue. To this purpose, the first section of the article offers a detailed analysis of Socrates’ initial conversation with Hippocrates, highlighting and interpreting the various uses of medical metaphors. Building on this, this section argues that the warning (...) Socrates utters against sophistry is much more complex than commonly assumed, and further that Socrates demonstrates his own skill as a physician of souls during this conversation. The second part analyzes the first half of Socrates’ discussion with Protagoras, arguing that Socrates here demonstrates another aspect of his expertise as a physician of souls by making Protagoras participate, although against his will, in bringing the unhealthy character of his teachings to light. (shrink)

This essay addresses the role of aporetic thinking and aporetic dialogue in the early “Socratic” dialogues of Plato. It aims to provide a new angle on why and how puzzlement induced by Socrates should benefit his interlocutors but often fails to do so. After discussing criteria for what is to count as an aporetic dialogue, the essay explains how and why Socrates’ aporia-inducing conversations point to a conception of virtue as grounded in a form of self-transparent wisdom. In combination with (...) a knowledge criterion that requires the ability to articulate and successfully defend one’s views under critical examination, this conception of virtue entails that failure under Socratic examination is an indication of not just intellectual but also ethical deficits. I then show (against a still prevailing view among scholars) that at least the grown-ups among Socrates’ interlocutors in these dialogues fail to realize that their aporia is a proof of ignorance. Laches, for instance, thinks that his failure under Socratic examination has been caused by his inexperience with debates, while Meno blames it on Socrates’ alleged trickery. In the Euthydemus, Plato aims to blunt the charge of sophistry by contrasting “sophistic” trickery with Socrates’ philosophical exhortation. Yet, as I argue, the most important difference between sophistic and Socratic examination lies in the underlying ethos, not in the argumentative techniques, as these are partly similar. The final section of the essay analyses the intellectual and ethical benefits of aporia-inducing discourse for those who do fully acknowledge their ignorance and follow the urge to overcome ignorance. (shrink)

In Plato’s Statesman, the Eleatic Stranger leads Socrates the Younger and their audience through an analysis of the statesman in the service of the interlocutors’ becoming “more capable in dialectic regarding all things”. In this way, the dialectical exercise in the text is both intrinsically and instrumentally valuable, as it yields a philosophically rigorous account of statesmanship and exhibits a method of dialectical inquiry. After the series of bifurcatory divisions in the Sophist and early Statesman, the Stranger changes to a (...) non-bifurcatory method of dividing to account for the statesman, but does not explain the reason for this change. I argue that the change is prepared by the elements discussed in the digression from 277a2 to 287b2. Here the Stranger makes use of four concepts that are crucial for understanding this change: the notion of paradigm, the paradigms of care and the weaver, and the notion of due measure. I claim that the notion of paradigm clarifies the nature of dialectical inquiry, care and weaving act as paradigms appropriate to dialectical practice, and an account of due measure offers insight into the constitutive ratios that govern the structuring of kinds pursued through dialectical inquiry. I suggest that the non-bifurcatory method is intended to articulate knowledge in the strictest sense, or knowledge of the forms, presenting a method of inquiry into being and its structure that will foster the turning of the soul from things to forms that Socrates describes in the Republic. (shrink)

The Socratic method has long been venerated for its ability to produce insightful and engaging academic discourse in the classroom. It has also been criticized, however, for encouraging an overly aggressive and, perhaps, combative teaching style, as well as for its potential stultifying and manipulative effect on students. Assessing its merits, though, is a difficult task, as there is little consensus as to what constitutes a successful application of the Socratic method. Addressing this issue requires a closer examination of Plato’s (...) dialogues, our main source for descriptions of Socrates’s pedagogical practices, in the hope that they might provide us with a clearer and richer understanding of the principles that guide Socrates as he questions his interlocutors. While we cannot undertake anything near an exhaustive examination in this chapter, our aim is instead to uncover some important features of the underlying pedagogical model employed in the dialogues most closely associated with the Socratic method. After examining these features in light of recent criticisms, we conclude that educators today still have good reason to look to this ancient method for inspiration. (shrink)

The argument at Phaedo 74 B 4‐C 6 that the equal itself is ‘something different from’ sets of physical equals depends on Leibniz's Law: there is a property that perceptible equals have that the equal itself does not have. What I call the ‘epistemic interpretation’ holds that the property is an epistemic one: having appeared unequal. The ‘ontological interpretation’ holds that the property is not epistemic, but simply the property of being unequal. The most natural reading of the text favours (...) the epistemic interpretation; scholarly support for the ontological interpretation is based on the widely held view that on the epistemic interpretation the argument is manifestly invalid. But this view implicitly relies on an impoverished sense of ‘appearing’ as equivalent to ‘being thought’. Drawing on an analogy with colour perception, I elaborate an experiential sense of ‘appearing’ which makes Plato's argument on the epistemic interpretation philosophically defensible. (shrink)