Plato: Metaphysics, Misc

Investigating Plato’s ontological as well as epistemological status in each of his dialogues, this book is going to challenge the current theories of Plato’s development and suggest a new theory. Regarding the relation of Plato’s early and middle period dialogues, scholars have been divided to two opposing groups: unitarists and developmentalists. While developmentalists try to prove that there are some noticeable and even fundamental differences between Plato’s early and middle period dialogues, the unitarists assert that there is no essential difference (...) in there. The main goal of the first two chapters is to suggest that some of Plato’s ontological as well as epistemological principles change, both radically and fundamentally, between the early and middle period dialogues. Though this is a kind of strengthening the developmentalistic approach corresponding the relation of the early and middle period dialogues, based on the fact that what is to be proved here is a essential development in Plato’ ontology and his epistemology, by expanding the grounds of development to the ontological and epistemological principles, it hints to a more profound development. The fact that the bipolar and split knowledge and being of the early period dialogues give way to the tripartite and bound knowledge and benig of the middle period dialogues indicates the development of the notions of being and knowledge in Plato’s philosophy before the dialogues of the middle period. The first chapter entitled “Plato’s Onto-Epistemological Principles in the Early Dialogues” tries to draw out six principles out of Plato’s early dialogues specially Euthyphro, Laches, Charmides, Hippias Major and Euthydemus. We discuss that these principles present kind of a bipolar as well as split ontology and epistemology. The second chapter, “Revision of First Socrates’ Principles in the Middle Period Dialogues”, aims to argue that the onto-epistemological principles of the early dialogues are being radically changed in three dialogues of Meno, Phaedo and Republic in the middle period dialogues. Not only the bipolar ontology and epistemology of the early dialogues give place to a tripartite ontology and epistemology but also their split being and knowledge are inclined to be replaced by bound being and knowledge. Our next step in this book is to suggest a new approach to Plato’s theory of being in Republic V and Sophist based on the notion of difference and the being of a copy. To understand Plato’s ontology in these two dialogues we are going to suggest a theory we call Pollachos Esti; a name we took from Aristotle’s pollachos legetai both to remind the similarities of the two structures and to reach a consistent view of Plato’s ontology. Based on this theory, when Plato says that something both is and is not, he is applying difference on being which is interpreted here as saying, borrowing Aristotle’s terminology, 'is is (esti) in different senses'. I hope this paper can show how Pollachos Esti can bring forth not only a new approach to Plato’s ontology in Sophist and Republic but also a different approach to being in general. Thence, chapter three, “Pollachos Esti; Plato’s Ontology in Sophist and Republic”, intends to discuss that i) the theories of ‘being as difference’ and ‘being of a copy’, considered together in what we call the theory of pollachos esti, can well be compared to the structure of pollachos legetai in Aristotle when it is attached to the theories of pros hen and substance; and ii) the ontology of Republic V-VII is based on this theory and is, thus, almost the same as the ontology of Sophist. Investigating the most famous chronologies of the last 150 years from Campbell on, the fourth chapter, “The Standard Chronology of the Dialogues”, is to argue that all of them have a somewhat fix and dogmatic arrangement of Plato’s dialogues in which Meno, Phaedo and Republic are located after some early dialogues and before Theaetetus and Parmenides, on the one hand, and all the so-called late period dialogues after Theaetetus and Parmenides on the other hand. It is also reminded that all that the stylometric evidences can show is the lateness and homogeneity of the late period dialogues and, thence, nothing about the relation between dialogues like Theaetetus, Parmenides and Republic. The standard chronology is the subject of many criticisms some of which are discussed in our fifth chapter, “Objections against the Standard Chronology”, in three groups. While the first group of objections criticizes the place of the middle period dialogues immediately after the early ones, the second group attacks the place of late dialogues after the middle ones. The third group includes objections against the place of Parmenides in the standard chronology and tries to show that it cannot be considered after the middle period dialogues. The efforts of the first five chapters lead to a new theory of Plato’s ontological as well as epistemological development in an onto-epistemological chronology of his dialogues in our sixth chapter, “An Onto-Epistemological Chronology of Plato’s dialogues”. Instead of three periods, this chronology includes four waves of dialogues, Socratic wave, ontological wave, epistemological wave and political wave, in which all the so-called middle and late period dialogues are to be interpreted based on the problems presented in Parmenides I. The main changes we suggest in the standard chronology include firstly that Theaetetus and Parmenides I must be posited before Meno and Phaedo and, secondly, Republic must be posited after Sophist. Based on this arrangement, we can find Philosophos, Plato’s promised but unwritten dialogue, inside Republic. (shrink)

This paper aims to suggest a new arrangement of Plato’s dialogues based on a different theory of the ontological as well as epistemological development of his philosophy. In this new arrangement, which proposes essential changes in the currently agreed upon chronology of the dialogues, Parmenides must be considered as criticizing an elementary theory of Forms and not the theory of so-called middle dialogues. Dated all as later than Parmenides, the so-called middle and late dialoguesare regarded as two consecutive endeavors to (...) resolve the problems drawn out in there; an effort in the theory of knowledge through Theaetetus, Meno and Phaedo and another in ontology through the second part of Parmenides, Sophist and Republic. (shrink)

This paper aims to suggest a new approach to Plato’s theory of being in Republic V and Sophist based on the notion of difference and the being of a copy. To understand Plato’s ontology in these two dialogues we are going to suggest a theory we call Pollachos Esti; a name we took from Aristotle’s pollachos legetai both to remind the similarities of the two structures and to reach a consistent view of Plato’s ontology. Based on this theory, when Plato (...) says that something both is and is not, he is applying difference on being which is interpreted here as saying, borrowing Aristotle’s terminology, 'is is (esti) in different senses'. I hope this paper can show how Pollachos Esti can bring forth not only a new approach to Plato’s ontology in Sophist and Republic but also a different approach to being in general. (shrink)

Regarding the relation of Plato’s early and middle period dialogues, scholars have been divided to two opposing groups: unitarists and developmentalists. While developmentalists try to prove that there are some noticeable and even fundamental differences between Plato’s early and middle period dialogues, the unitarists assert that there is no essential difference in there. The main goal of this article is to suggest that some of Plato’s ontological as well as epistemological principles change, both radically and fundamentally, between the early and (...) middle period dialogues. Though this is a kind of strengthening the developmentalistic approach corresponding the relation of the early and middle period dialogues, based on the fact that what is to be proved here is a essential development in Plato’ ontology and his epistemology, by expanding the grounds of development to the ontological and epistemological principles, it hints to a more profound development. The fact that the bipolar and split knowledge and being of the early period dialogues give way to the tripartite and bound knowledge and benig of the middle period dialogues indicates the development of the notions of being and knowledge in Plato’s philosophy before the dialogues of the middle period. (shrink)

At Sophist 260e3-261a2, the Eleatic Stranger claims that in order to demonstrate that falsehood is, he and Theaetetus must first track down what speech (logos), opinion (doxa), and appearance (phantasia) are, and then observe the communion (koinōnia) that speech, opinion, and appearance have with non-being. The Stranger, however, never explicitly discusses the communion of speech, opinion, and appearance with non-being. Yet presumably their communion is implicit in his account of falsehood, given his claim that observing that communion is needed in (...) order to demonstrate that falsehood is (260e5-a2). This essay seeks to make the communion that speech has with non-being explicit. I argue that speech has communion with non-being in that the things and actions speech combines together by means of nouns and verbs need not be combined in a way that reveals how the being a given speech is about combines ontologically with other beings. (shrink)

In his adventurous monograph in comparative philosophy, The Origins of Philosophy in Ancient Greece and Ancient India, Richard Seaford offers to explain why philosophy, which on his account originated in the sixth century BCE separately in both Greece and India, took such a similar form in both cultures.

The interest of the young Brentano for the philosophy of Plato is linked to his Aristotelian studies. Brentano understands Aristotle’s philosophy in deep continuity with Plato’s one. This continuity is clear in one of the most controversial points of Brentano’s interpretation of Aristotle: the nature of God and the status of human soul. Brentano finds in both Plato and Aristotle a personal, monotheistic and creationistic God who also creates human soul, which is immortal. This approach is explained in some texts (...) from the youth of Brentano, although there are signs indicating that he sustained it until the end of his life. In his interpretation of Plato’s God, we see that Brentano identifies Him with the Idea of Good and the Demiurge. The Idea of Good would have even created the other Platonic Ideas, which should be understood as gods. (shrink)

The paper deals with the "deuteros plous", literally ‘the second voyage’, proverbially ‘the next best way’, discussed in Plato’s "Phaedo", the key passage being Phd. 99e4–100a3. The second voyage refers to what Plato’s Socrates calls his “flight into the logoi”. Elaborating on the subject, the author first (I) provides a non-standard interpretation of the passage in question, and then (II) outlines the philosophical problem that it seems to imply, and, finally, (III) tries to apply this philosophical problem to the "ultimate (...) final proof" of immortality and to draw an analogy with the ontological argument for the existence of God, as proposed by Descartes in his 5th "Meditation". The main points are as follows: (a) the “flight into the logoi” can have two different interpretations, a common one and an astonishing one, and (b) there is a structural analogy between Descartes’s ontological argument for the existence of God in his 5th "Meditation" and the "ultimate final proof" for the immortality of the soul in the "Phaedo". (shrink)

The paper deals with the "deuteros plous", literally ‘the second voyage’, proverbially ‘the next best way’, discussed in Plato’s "Phaedo", the key passage being Phd. 99e4–100a3. The second voyage refers to what Plato’s Socrates calls his “flight into the logoi”. Elaborating on the subject, the author first (I) provides a non-standard interpretation of the passage in question, and then (II) outlines the philosophical problem that it seems to imply, and, finally, (III) tries to apply this philosophical problem to the "ultimate (...) final proof" of immortality and to draw an analogy with the ontological argument for the existence of God, as proposed by Descartes in his 5th "Meditation". The main points are as follows: (a) the “flight into the logoi” can have two different interpretations, a common one and an astonishing one, and (b) there is a structural analogy between Descartes’s ontological argument for the existence of God in his 5th "Meditation" and the "ultimate final proof" for the immortality of the soul in the "Phaedo". (shrink)

The ‘traditional’ interpretation of the Receptacle in Plato’s Timaeus maintains that its parts act as substrata to ordinary particulars such as dogs and tables: particulars are form-matter compounds to which Forms supply properties and the Receptacle supplies a substratum, as well as a space in which these compounds come to be. I argue, against this view, that parts of the Receptacle cannot act as substrata for those particulars. I also argue, making use of contemporary discussions of supersubstantivalism, against a substratum (...) interpretation that separates substratum and space in the Timaeus. (shrink)

In this reading of the Euthyphro, Socrates and Euthyphro are seen less in a primordial conflict between reason and devotion, than as sincere Hellenic polytheists engaged in an inquiry based upon a common intuition that, in addition to the irreducible agency of the Gods, there is also some irreducible intelligible content to holiness. This reading is supported by the fact that Euthyphro does not claim the authority of revelation for his decision to prosecute his father, but rather submits it to (...) elenchus, and that Euthyphro does not embrace the ‘solution’ of theological voluntarism when Socrates explicitly offers it. Since the goal of this inquiry is neither to eliminate the noetic content of the holy, nor to eliminate the Gods’ agency, the purpose of the elenchus becomes the effort to articulate the results of this productive tension between the Gods and the intelligible on the several planes of Being implied by each conception of the holy which is successively taken up and dialectically overturned to yield the conception appropriate to the next higher plane, a style of interpretation characteristic of the ancient Neoplatonists. (shrink)

Against the background of a conventionalist theory, and staged as a defense of a naturalistic notion of names and naming, the critique of language developed in Plato’s Cratylus does not only propose that human language, in contrast to the language of the gods, is bound to the realm of myth and lie. The dialogue also concludes by offering a set of reasons to think that knowledge of reality is not within the reach of our words. Interpretations of the dialogue’s long (...) etymological sections often neglect this critique and tend to end up with an overly optimistic assessment of the theory of language on offer. In the light of one of the dialogue’s central etymological accounts, Socrates’ etymology of the name Hermes, this paper discusses two recent and influential versions of such a view: David Sedley’s theory of onomatopoetic encapsulation and Franco Trivigno’s qualified referentialism. It argues that the complex relation between language and reality expressed in the Cratylus cannot be exhaustively captured by either of these theories because Plato considers all names to be semantically underdetermined until they are put to use. It suggests that Plato rather works with a functionalistic notion of names and naming, and that the dialogue’s account of natural and correct naming is to be understood in these terms. (shrink)

The essay consists in the analysis of the problem of the evil in the man and in the analysis of the remedies which the man can find against the evil. Plato affirms the presence of an active principle of evil in the soul of every man, which coincides with some instincts of the appetitive soul; the opposite principle to the evil is the reason, which needs, though, a correct education in order to be able to fight efficiently against the evil (...) in us. The man can be seen as a battle field of these opposite forces. Plato describes the presence of the evil in us in some passages of Republic Book 9, where he compares the appetitive part of the soul with a monster. The destiny of every person in her earthly existence consists in the continuing control of the appetitive part of the soul, if the status of ethical education is to be reached and maintained. The man who remains in the realm of the opinion, that is, in the realm of the doxa is an individual who only disposes of unstable opinions and who as a consequence do not have authentic remedies against the appetitive part. On the contrary, the individual who can ascend to the realm of being through the hard education represented by arithmetic, geometry, stereometry, astronomy, harmony and, finally, dialectic is really able to contrast the force of the evil within the individual. Ethics is really possible only through the complete education which passes through these disciplines: the more the individuals is theoretically educated, the more the individual is ethically educated. The knowledge of ideas is the only authentic therapy against the evil in us. (shrink)

In the present paper, the meanings the term “Chaldeans” acquired during the Antiquity and the early Middle Ages are presented, but mainly the role the Chaldean Oracles played inside the movement of Neo-Platonism is emphasized. The stratification of Being according to the theology of the Chaldean Oracles, suggests a reformation of the ancient Chaldean dogmas by the Neo-Platonists. The kernel of this paper is the demonstration of the similarity between the name “En” that the ancient Babylonians used as the first (...) part of many compound words for their gods, with the One (Ἕν=En), the first theological principle in the Neo-Platonic system. Yet, a comparison between the Chaldean theology and the Neo-platonic views on Mysticism and religiosity follows. As it is well known, the later Neo-Platonism will be led to the creation of a way of thought and practice as impacts from the ancient tradition. (shrink)

The paper argues that Motion and Rest are “greatest kinds” and not just convenient examples, since they are all-pervading. Thus Motion and Rest can be jointly predicated of a single subject and can be predicated of each other, just as Sameness and Otherness can. While Sameness and Otherness are opposites, a single subject may be the same in one respect, namely, the same as itself, and other in another respect, namely, other than other things. Thus they can be predicated of (...) a single subject, and they can be predicated of each other, as well, since Sameness is other than other things and Otherness is the same as itself. The same explanation applies to Motion and Rest, as the paper demonstrates: a given subject may be in motion in one respect while being at rest in another respect. This distinction is made in the Sophist itself, right in the passage concerning the greatest kinds. Thus Motion and Rest should be considered greatest kinds on par with Being, Sameness, and Otherness, and each of these kinds pervades all other kinds. (shrink)

One of the questions regarding the Parmenides is whether Plato was committed to any of the arguments developed in the second part of the dialogue. This paper argues for considering at least one of the arguments from the second part of the Parmenides, namely the argument of the generation of numbers, as being platonically genuine. I argue that the argument at 142b-144b, which discusses the generation of numbers, is not deployed for the sake of dialectical argumentation alone, but it rather (...) demonstrates key platonic features, such as the use of the greatest kinds and the generation principle. The connection between the argument for the generation of numbers and Plato’s philosophy of mathematics is strengthened by the exploration of a possible reference in Aristotle’s Metaphysics A6. Taken as a genuine platonic theory, the argument could have significant impact on how we understand Plato’s philosophy of mathematics in particular, and the ontology of the late dialogues in general – that numbers can be reduced to more basic entities, i.e the greatest kinds, in a way similar to the role the greatest kinds are assigned in the Sophist. (shrink)

در اين جستار بر آنيم اصول وجود شناختي و معرفت شناختي افلاطون در محاورات اوليه و علي الخصوص لاخس، خارميدس، اوثيفرون، اوتيدموس و هيپياس بزرگ را بر مبناي سه عنصر آنچه «دور سقراطي» مي ناميم يعني پرسش سقراطي، ادعاي سقراطي انكار دانش و النخوس مورد بررسي قرار دهيم. حاصل اين بررسي شش اصل وجود - معرفت شناختي است: شناخت الف، معرفت‌شناسي دوقطبي، وجودشناسي دو‌قطبي، معرفت گسسته، وجود گسسته و معرفت وجود. اگرچه اين اصول عمدتاً جديد نبوده و پيشتر مورد بحث (...) محققان قرار گرفته‌اند، آنچه مورد نظر اين جستار است در نظر گرفتن آين اصول در كنار يكديگر و تاكيد بر هماهنگي و مطلق بودن آنهاست. تناسب و هماهنگي ميان اصول معرفت شناختي و اصول وجودشناختي و همساني آنها در برخي ويژگي ها همچون مطلق بودن و گسستگي علاوه بر آنكه نشان دهنده سازگاري نظري محاورات اوليه است، مي تواند تاييدي بر نتايج اين تحقيق باشد. (shrink)

در اين جستار برآنيم كه ترتيبي جديد از محاورات افلاطون ارائه نمائيم؛ ترتيبي كه بر مبناي توسعه وجودشناختي و معرفت شناختي افلاطون مبتني است و تفاوت‌هاي اساسي با كرونولوژي غالب امروزي محاورات دارد. در حاليكه در همه كرونولوژي هاي پذيرفته شده فعلي، پارمنيدس به عنوان نقد نظريه مثال در محاورات مياني و بنابراين متأخر از اين محاورات در نظر گرفته مي‌شود، كرونولوژي پيشنهادي ما پارمنيدس را پس از محاورات اوليه و پيش از محاورات مياني قرار مي‌دهد. بر اساس اين تغيير (...) نه تنها منون، فايدون، فايدروس و جمهوري پس از پارمنيدس قرار مي‌گيرند، بلكه ميان ثئايتتوس و سوفيست از يك طرف و فايدون و جمهوري از طرف ديگر، فاصله زيادي ايجاد مي‌شود به طوري كه منون و فايدون ميان جفت اول و سوفيست و تيمايوس ميان جفت دوم قرار مي‌گيرند. در اين جستار نشان خواهيم داد كه چگونه اين تغييرات مي‌توانند به خوانشي سازگارتر از محاورات مياني و متأخر كمك كنند و در عين حال از بسياري مشكلات ناشي از كرونولوژي‌هاي ديگر بپرهيزند. (shrink)

It is argued that the analysis by which the gene are differentiated in the dialogue is an exercise in studied ambiguities informed by an Eleatic logic of strict dichotomy that was the underpinning of the Sophist's method of division. By this dialectical drill, Plato shows that the metaphysics underlying the Visitor's method fails to adequately distinguish what it means to have a character from what it means to be a character, and therefore remains inadequate to track down the sophist or (...) to distinguish him from the philosopher: Eleaticism, as critically examined by Plato, proves to be means to disguise, not to discover the sophist. (shrink)

Platão trata no Parmênides das formas ideais e do seu modelo de identidade relacionando-o ao modelo de ser eleata através da noção de um. Tendo concluído a incompatibilidade entre este modelo de atribuição e os seres mutáveis em uma realidade múltipla, ele percebeu que a noção de não-ser deveria ser desvinculada do entendimento de Parmênides através da nova noção de não-ser como diferença apresentada no Sofista. Paralelamente, Aristóteles apresenta um ordenamento parecido através da sua teoria física sobre o movimento, baseada (...) na ideia de contrários, e do princípio de não- contradição e identidade desenvolvidos na Metafísica. Em Aristóteles, contrariedade, contradição, movimento, mudança e identidade são conceitos fundamentais para se compreender em um nível elementar como ele trata o problema da relação entre conhecimento e contingencia. (shrink)

The eponymous dialogue presents the sophist as a figure who defies definition, and those difficulties are attributed to the conception of the image. Ultimately, the sophist is defined as a species of image maker. The image, however, which is important throughout the Platonic corpus as a metaphor, an analogy, and a metaphysical concept as well, receives in the Sophist little clarification or definition apart from whatever may be inferred from the division of image making arts. In the Sophist, the sophist (...) escapes definition as in no other dialogue, rendering even the concluding division one that makes the distinction of the sophist from the philosopher problematic, if not impossible. The paper explores how the dialogue problematizes and rethinks the metaphysics of the image, as compared to its use in dialogues such as the Phaedo and the Republic, pointing to a refinement in understanding the relation of judgment to knowledge and appearance to reality. (shrink)

One aim of this paper is to bring to the surface the problems with the traditional, non-literal interpretation of the pre-cosmos in the Timaeus. Contrary to this traditional interpretation, I show that Necessity is an ateleological cause capable of bringing about the events in the pre-cosmos, and that Intelligence is a teleological cause that produces effects only for the sake of maximizing the good. I conclude that there are no grounds for supposing that Intelligence is a causal force operating in (...) the pre-cosmos, and that the account of the pre-cosmos should be taken literally: it is an account of the works of Necessity alone. (shrink)

At 435c-d and 504b ff., Socrates indicates that there is a "longer and fuller way" that one must take in order to get "the best possible view" of the soul and its virtues. But Plato does not have him take this "longer way." Instead Socrates restricts himself to an indirect indication of its goals by his images of sun, line, and cave and to a programmatic outline of its first phase, the five mathematical studies. Doesn't this pointed restraint function as (...) a provocation, moving us to want to begin the "longer way" and to make use of its conceptual resources to rethink Socrates' images? I begin by finding a double movement in the complex trajectory of the five studies: they both guide the soul in the "turn away from what is coming to be ... [to] what is" (518c) and, at the same time, lead the soul back, albeit in the medium of pure intelligibility, to the sensible world; for the pure figures and ratios that they disclose constitute the core structures of sensible things. I then draw on what Socrates says about geometry and harmonics to address three fundamental questions that he leaves open: the nature of the Good in its responsibility for truth and for the being of the forms; the relations of forms, mathematicals, and sensibles as these are disclosed by dialectic; and the bearing of the philosopher's discovery of the Good on his disposition towards his community and the task of ruling. I close by marking six sets of further questions that these reflections bequeath for dialogues to come. (shrink)

Plato is associated with the idea that the body holds us back from knowing ultimate reality and so we should try to distance ourselves from its influence. This sentiment appears is several of his dialogues including Theaetetus where the flight from the physical world is compared to becoming like God. In some major dialogues of Plato's later career such as Philebus and Laws, however, the idea of becoming like God takes a different turn. God is an intelligent force that tries (...) to create order in the physical world. I argue that likeness to God in these dialogues involves imitating God's effort by trying to order our bodies, souls, and societies as intelligence directs. Becoming like Plato's God is not to abandon the world. It is to improve it. (shrink)

This article explores how Plato, in his “metaphysical” dialogues, sees the specific properties of motion (and especially of motion in music), which lend themselves to adaptation for the purposes of maintaining or restoring the health of the soul. Plato explores the property of regular or rhythmic motion in particular. The attention has been drawn to the analogy between the calming effect of music, at the human level, and the Demiurge’s achievement in willing the world into existence. The focus of the (...) article lays on the Laws, in which the principle of musical motion plays a central role in resolution of the contradictions between material and spiritual, natural and physiological, medical and educative. (shrink)

This essay undertakes a reexamination of the notion of the receptacle/chōra in Plato's Timaeus, asking what its value may be to feminists seeking to understand the topology of the feminine in Western philosophy. As the source of cosmic motion as well as a restless figurality, labile and polyvocal, the receptacle/chōra offers a fecund zone of destabilization that allows for an immanent critique of ancient metaphysics. Engaging with Derridean, Irigarayan, and Kristevan analyses, Bianchi explores whether receptacle/chōra can exceed its reduction to (...) the maternal-feminine, and remain answerable to contemporary theoretical concerns. (shrink)

Must the interpreter of the Platonic dialogues choose between the so-called "unwritten teachings" reported by Aristotle in Metaphysics A6 and the dialogues? I argue, on the contrary, that a reading of the dialogues that is sensitive to their pedagogical irony will find the "unwritten teachings" exhibited in them. I identify the key teachings in Metaphysics A6, show how the Parmenides and the Philebus point to them, and explicate a full exhibition of them in the Statesman.

The debate over Plato’s “ so called unwritten doctrines”, which he communicated only to a small circle of trusted disciples, has caused a stir among philosophers in recent decades. Rafael Ferber assumes a differentiated position in this controversy. He is convinced that the unwritten doctrines did exist, but that Plato, for reasons inherent in the process of gaining knowledge, was unable to communicate these doctrines even to his closest disciples. In this book, Ferber outlines the discussion and summarizes the standpoints (...) of greatest interest. -/- Ever since Aristotle, we have known that Plato did not put his most important teachings into writing, but instead communicated them only orally to the inner circle of his disciples. While the extant dialogues merely pass down Plato’s “exoteric” doctrines, his most important “esoteric” insights were not meant for the general public. In the meantime, the contents and the significance of Plato’s “unwritten doctrines” have become the subject of debate in philosophical circles. -/- Fifteen years ago, at the height of the controversy over the “unwritten doctrines”, Rafael Ferber entered the fray with a small book. He proposed that Plato was also unable to communicate the “unwritten doctrines” because the highest principles (i.e. the subject of the unwritten doctrines) cannot be known through logical operations due to an epistemological paradox. Ferber’s differentiated position met with great respect and acceptance, although in individual cases it was also rejected. -/- Ferber’s new book again presents the text of 1991, but significantly expands on it through new perspectives and an outline of the discussion it triggered. In this book, the reader learns what is meant by Plato’s unwritten doctrines and what the controversy is all about. (shrink)