Protagoras was an important Greek thinker of the fifth century BC, the most famous of the so called Sophists, though most of what we know of him and his thought comes to us mainly through the dialogues of his strenuous opponent Plato. In this book, Ugo Zilioli offers a sustained and philosophically sophisticated examination of what is, in philosophical terms, the most interesting feature of Protagoras' thought for modern readers: his role as the first Western thinker to argue (...) for relativism. Zilioli relates Protagoras' relativism with modern forms of relativism, in particular the 'robust relativism' of Joseph Margolis, gives an integrated account both of the perceptual relativism examined in Plato's Theaetetus and the ethical or social relativism presented in the first part of Plato's Protagoras and offers an integrated and positive analysis of Protagoras' thought, rather than focusing on ancient criticisms and responses to his thought. This is a deeply scholarly work which brings much argument to bear to the claim that Protagoras was and remains Plato's subtlest philosophical enemy. (shrink)

In this contribution, I explore the treatment that Plato devotes to Protagoras’ relativism in the first section of the Theaetetus (151 E 1–186 E 12) where, among other things, the definition that knowledge is perception is put under scrutiny. What I aim to do is to understand the subtlety of Plato’s argument about Protagorean relativism and, at the same time, to assess its philosophical significance by revealing the inextric¬ability of ontological and epistemological aspects on which it is built (for (...) this latter aspect, I refer to contemporary discussions of relativism, mainly to Margolis’ robust relativism). I then turn to Aristotle’s treatment of Protagoras’ relativism in Metaphysics Γ, sections 5 and 6, in order to show that Plato and Aristotle surprisingly share the same view as regards the philosophical content of Protagoras’ relativism (in doing so, I take position against the standard opinion among scholars that Plato and Aristotle understand Protagoras’ relativism in different, even incompatible, ways). What I ultimately aim to demonstrate is that Protagoras’ relativism, as understood by both Plato and Aristotle, is a coherent, even attractive, philosophical position. (shrink)

Reassesses the philosophical and pedagogical contributions of Protagoras Protagoras and Logos brings together in a meaningful synthesis the contributions and rhetoric of the first and most famous of the Older Sophists, Protagoras of Abdera. Most accounts of Protagoras rely on the somewhat hostile reports of Plato and Aristotle. By focusing on Protagoras's own surviving words, this study corrects many long-standing misinterpretations and presents significant facts: Protagoras was a first-rate philosophical thinker who positively influenced the (...) theories of Plato and Aristotle, and Protagoras pioneered the study of language and was the first theorist of rhetoric. In addition to illustrating valuable methods of translating and reading fifth-century B.C.E. Greek passages, the book marshals evidence for the important philological conclusion that the Greek word translated as rhetoric was a coinage by Plato in the early fourth century. In this second edition, Edward Schiappa reassesses the philosophical and pedagogical contributions of Protagoras. Schiappa argues that traditional accounts of Protagoras are hampered by mistaken assumptions about the Sophists and the teaching of the art of rhetoric in the fifth century. He shows that, contrary to tradition, the so-called Older Sophists investigated and taught the skills of logos, which is closer to modern conceptions of critical reasoning than of persuasive oratory. Schiappa also offers interpretations for each of Protagoras's major surviving fragments and examines Protagoras's contributions to the theory and practice of Greek education, politics, and philosophy. In a new afterword Schiappa addresses historiographical issues that have occupied scholars in rhetorical studies over the past ten years, and throughout the study he provides references to scholarship from the last decade that has refined his views on Protagoras and other Sophists. (shrink)

The Protagoras is one of Plato's most entertaining dialogues. It represents Socrates at a gathering of the most celebrated and highest-earning intellectuals of the day, among them the sophist Protagoras. In flamboyant displays of both rhetoric and dialectic, Socrates and Protagoras try to out-argue one another. Their arguments range widely, from political theory to literary criticism, from education to the nature of cowardice; but in view throughout this literary and philosophical masterpiece are the questions of what part (...) knowledge plays in a successful life, and how we may acquire the knowledge that makes for success. This edition contains the first commentary in English on the Greek text for almost a hundred years. The commentary provides the assistance with linguistic, literary and philosophical detail that will enable students and scholars to savour to the full the pleasures of the Protagoras. (shrink)

You are going to entrust your soul to the care of a sophist. But I should be surprised if you even know what a sophist is. In the fifth century BC professional educators, the sophists, travelled the Greek world claiming to teach success in public and private life. In this dialogue Plato shows the pretensions of the leading sophist, Protagoras, challenged by the critical arguments of Socrates. From criticism of theeducational aims and methods of the sophists the dialogue broadens (...) out to consider the nature of the good life, and the role of pleasure and intellect in the context of that life. The dialogue combines subtlety of argument with intricacy of dramatic construction and brilliant characterisation. This translation achieves both precision and colloquial naturalness, while the notes and introduction set the arguments in their historical and philosophical context. (shrink)

In addition to its interest as one of Plato's most brilliant dramatic masterpieces, the Protagoras presents a vivid picture of the crisis of fifth-century Greek thought, in which traditional values and conceptions of man were subjected on the one hand to the criticism of the Sophists and on the other to the far more radical criticism of Socrates. The dialogue deals with many themes which are central to the ethical theories which Plato developed under the influence of Socrates, notably (...) the nature of human excellence, the relation of knowledge to right conduct, and the place of pleasure in the good life. This translation of the Protagoras was originally published in 1976. In this revised edition, C. C. W. Taylor has made a number of changes in the translation and commentary, and has added a new Preface and Introduction. The Bibliography has also been extended to include titles published up to 1990. (shrink)

Plato's Theaetetus discusses and ultimately rejects Protagoras's famous claim that "man is the measure of all things." The most famous of Plato's arguments is the Self-Refutation Argument. But he offers a number of other arguments as well, including one that I call the 'Future Argument.' This argument, which appears at Theaetetus 178a−179b, is quite different from the earlier Self-Refutation Argument. I argue that it is directed mainly at a part of the Protagorean view not addressed before , namely, that (...) all beliefs concerning one's own future sensible qualities are true. This part of the view is found to be inconsistent with Protagoras's own conception of wisdom as expertise and with his own pretenses at expertise in teaching. (shrink)

The famous dispute between Protagoras and Euathlus concerning Protagoras’s tuition fee reportedly owed to him by Euathlus is solved on the basis of practical argumentation concerning actions. The dispute is widely viewed as a kind of a logical paradox, and I show that such treating arises due to the double confusion in the dispute narrative. The linguistic expressions used to refer to Protagoras’s, Euathlus’s and the jurors’ actions are confused with these actions themselves. The other confusion is (...) the collision between the pairs of incompatible actions ambiguously expressed by two different pairs of sentences, one of which is a propositionally consistent pair whereas the other is an inconsistent one. The actional paradox solution aims to clear up these confusions by means of two core borderlines, propositional and expressive, drawn between the actions and the propositions. The propositional distinction says that actions are empirical facts and they lack truth values unlike propositions, which are mental entities and are often employed for referring to the actions. This distinction helps to avoid the confusion between the empirical incompatibility of actions and the truth-functional inconsistency of propositions. The expressive distinction claims that although the same linguistic sentences can be used to refer both to actions and propositions, two empirically incompatible actions can be expressed both by a pair of inconsistent propositions as well as by a pair of consistent ones. Therefore, the action of Protagoras’s being paid may be linguistically symbolized in four different ways: Protagoras gets paid due to the verdict, Protagoras gets paid due to the contract that amount to Protagoras does not get paid by the contract and Protagoras does not get paid by the verdict respectively, and likewise for Euathlus’s actions. The two distinctions are used for classifying the two groups of paradox solutions, legal and logical, proposed so far depending on which of the two confusions they purport to escape from. The actional reconstruction of the paradox suggests that there is only one single agent in the dispute, Protagoras, while the other named Euathlus is a ‘phantom,’ which most probably was invented by Protagoras himself for the sake of creating this challenging sophism. (shrink)

In the fifth century BC professional educators, the sophists, travelled the Greek world claiming to teach success in public and private life. In this dialogue Plato shows the pretensions of the leading sophist, Protagoras, challenged by the critical arguments of Socrates. From criticism of the educational aims and methods of the sophists the dialogue broadens out to consider the nature of the good life, and the role of pleasure and intellect in the context of that life.

En el presente trabajo intentaremos poner en evidencia un singular enfoque sobre la pólis ateniense ofrecido por Protágoras en el diálogo platónico que lleva su nombre. Dicho enfoque, soslayado por los intérpretes, hace hincapié en la dimensión visual de la praxis política de los ciudadanos y es coherente con los posicionamientos ontológicos que emergen de los fragmentos del sofista.

In both Metaphysics Γ 4 and 5 Aristotle argues that Protagoras is committed to the view that all contradictions are true. Yet Aristotle’s arguments are not transparent, and later, in Γ 6, he provides Protagoras with a way to escape contradictions. In this paper I try to understand Aristotle’s arguments. After examining a number of possible solutions, I conclude that the best way of explaining them is to (a) recognize that Aristotle is discussing a number of Protagorean opponents, (...) and (b) import another of Protagoras’ views, namely the claim that there are always two logoi opposed to one another. (shrink)

The presocratic philosopher Protagoras of Abdera (490–420 BC), founder of the sophistic movement, was famously agnostic towards the existence and nature of the gods, and was the proponent of the doctrine that 'man is the measure of all things'. Still relevant to contemporary society, Protagoras is in many ways a precursor of the postmodern movement. In the brief fragments that survive, he lays the foundation for relativism, agnosticism, the significance of rhetoric, a pedagogy for critical thinking and a (...) conception of the human being as a social construction. -/- This accessible introductory survey by Daniel Silvermintz covers Protagoras' life, ideas and lasting legacy. Each chapter interprets one of the surviving fragments and draws connections with related ideas forwarded by other sophists, showing its relevance to an area of knowledge: epistemology, ethics, education and sociology. (shrink)

Protagoras u Sekstusa Empiryka (PH I 216) a platoński Teajtet Dzieła Sekstusa Empiryka stanowią ważne źródło doksograficzne, zawierając m. in. fragmenty i przekazy poświęcone sofistyce. Są wśród nich omówienia poglądów Protagorasa. W świetle problemów, jakie stwarza rekonstrukcja myśli tego sofisty, warto poddać badaniu źródła i perspektywę Sekstusa, zwracając szczególną uwagę na krótkie przedstawienie tez Protagorasa zawarte w Zarysach Pyrrońskich (PH I 216). Porównując omówienie Sekstusa i przedstawienie Platona w Teajtecie, dostrzec możemy podobieństwo prezentowanych poglądów. W przekazie Seksusa podobnie jak (...) w Teajtecie główny akcent położony jest na tezę homo-mensura, z którą wiąże się dwa inne podstawowe dla platońskiego dialogu wątki: zmienności rzeczy oraz "prywatności" spostrzeżeń. Mimo charakterystycznej dla sceptycyzmu modyfikacji strony pojęciowej, nadinterpretacji oraz wyrwania tez z dialogowego kontekstu przedstawienia obu wątków wykazują daleko idące paralele z Teajtetem. Bez względu na to, czy omówienie to jest dziełem samego Sekstusa, czy zaczerpnięte zostało z jakiegoś wcześniejszego źródła mającego charakter sceptycznej "ściągawki", możemy na jego podstawie wnioskować, że dialog Teajtet uważany był w późnej starożytności za wiarygodne źródło informacji na temat poglądów Protagorasa. Należy jednak podkreślić, że przekaz Sekstusa stanowi jedynie interpretację treści zawartych w platońskim Teajtecie i – wbrew praktyce wielu uczonych - nie może być brany pod uwagę jako niezależne źródło wiedzy o myśli Protagorasa. (shrink)

The paper offers an analysis of Protagoras’ fr. DK 80 B 1 and rejects the traditional reading of Protagoras as relativist. By considering the ipsissima verba that Protagoras makes use of in his passage, it is argued that alternative interpretations are possible, of which epistemological reism and psychological individualism are proposed. On a more general level, it is discussed to what extent Protagoras’ fragment contains descriptive rather than normative claim.

Recent accounts of the life of Protagoras differ widely from one another in their treatment of the ancient sources, and in the conclusions which they draw from them. A re-examination of the evidence, undertaken in 1949–50 as part of a study of the Prometheus trilogy, has convinced me that a new discussion is urgently needed if we are to place the earlier stages of the sophistic movement in the right context historically; and the purpose of this paper is to (...) lay at least a part of the foundation for such a discussion. Since the evidence for the life of Protagoras includes some allusions to his relations with Democritus, and there are some obvious affinities between the careers of Protagoras and Anaxagoras, I have added a short account of the relevant points in the biography of Democritus and a more detailed study of the evidence for the life of Anaxagoras. (shrink)

According to a fragment of Porphyry (410 F Smith = 80 B 2 DK), containing a dialogue on the theme of plagiarism, Plato made use of the same arguments as Protagoras’ Περὶ τοῦ ὄντος against monistic thinkers, most likely the Eleatics. My paper aims to analyse Porphyry’s testimony to assess some aspects of Protagoras’ reflection on being through a comparison with parallel sources, in particular Plato’s dialogues (Theaetetus, Euthydemus, Sophist, Parmenides). I conclude that it is plausible to suppose (...) that, within the framework of a more general reflection on ὀρθοέπεια, Protagoras viewed the notion of being in Περὶ τοῦ ὄντος from a linguistic perspective. (shrink)

In addition to its interest as one of Plato's most brilliant dramatic masterpieces, the Protagoras presents a vivid picture of the crisis of fifth century Greek thought, in which traditional values and conceptions of humanity were subjected to criticism of the Sophists and to the far moreradical criticism of Socrates. The dialogue deals with many themes which are central to the ethical theories which Plato developed under the influence of Socrates, notably, the nature of human excellence, the relation of (...) knowledge to right conduct, and the place of pleasure in the good life. Thisrevised edition includes a new Preface and Introduction, as well as numerous changes to the translation and commentary. (shrink)

En el Gran Discurso de Protágoras, en el diálogo platónico que lleva su nombre, Platón pone en boca de Protágoras un mito acerca del origen, desarrollo y naturaleza del ser humano, que es de gran relevancia filosófica. Se expresa que los dioses crearon a los seres mortales desde dos elementos: la tierra y el fuego. A su vez, también asignaron dos titanes, Epimeteo y Prometeo, para que proveyeran a los mortales de sus facultades. ¿Acaso esto implica que la creación no (...) fue terminada por los dioses? ¿Hasta qué punto los dioses crearon enteramente al ser humano? ¿Podría afirmarse que este es un mito creacionista? El desarrollo de los seres vivientes puede dividirse en cuatro instancias. A lo largo de este artículo, se proponen distintos modelos hermenéuticos para responder los interrogantes mencionados anteriormente. (shrink)

Cet article examine le fragment de l’homme-mesure de Protagoras, tout d’abord en exposant les grands courants de son interprétation, ensuite et surtout en présentant les positions respectives et antagonistes de Nietzsche et Heidegger. Heidegger, contre Nietzsche, fait reposer l’homo-mensura sur un arrière-fond ontologique et platonicien, où la mesure n’est possible que depuis l’ouverture ontologique qui la précède. Cette interprétation a sa légitimité historique et philologique. Mais Nietzsche comprend le fragment comme entièrement irréductible au platonisme : Protagoras aurait pensé (...) la connaissance comme l’étude de types psychologiques, non pas selon une norme épistémique stable, mais selon les variations d’intensité qui touchent toute psychè mais aussi toute communauté sociale. Je prends appui sur cette dernière intuition pour dégager ce qui me semble l’interprétation la plus riche du fragment de l’homme-mesure, à partir des remarques d’Eugène Dupréel – une interprétation sociale et normative où Protagoras est le penseur d’une praxis qui, dans une situation et dans une communauté données, est capable d’améliorer les impressions subjectives du plus grand nombre. (shrink)

Protagoras believes that all beliefs are true. Since Protagoras' belief that all beliefs are true is itself a belief, it follows from Protagoras' belief that all beliefs are true that Protagoras' belief is true. But what about the belief that Protagoras' belief is false? Doesn't it follow, by parallel reasoning and not at all trivially, that if all beliefs are true and there is a belief that Protagoras' belief is false, then Protagoras' belief (...) is false? (shrink)

Este artículo se propone mostrar que el significado de aisthesis para Protágoras responde al uso y significación de la filosofía jónica, esto es, aún significa indistintamente juicio, sensación, emoción, creencia, en fin, doxa. Esto tiene una consecuencia muy relevante para la comprensión del homo mensura y la tesis que afirma: aisthesis es episteme.

Cet article examine le fragment de l’homme-mesure de Protagoras, tout d’abord en exposant les grands courants de son interprétation, ensuite et surtout en présentant les positions respectives et antagonistes de Nietzsche et Heidegger. Heidegger, contre Nietzsche, fait reposer l’homo-mensura sur un arrière-fond ontologique et platonicien, où la mesure n’est possible que depuis l’ouverture ontologique qui la précède. Cette interprétation a sa légitimité historique et philologique. Mais Nietzsche comprend le fragment comme entièrement irréductible au platonisme : Protagoras (et son (...) frère de pensée Thucydide) aurait pensé la connaissance comme l’étude de types psychologiques, non pas selon une norme épistémique stable, mais selon les variations d’intensité qui touchent toute psychè mais aussi toute communauté sociale. Je prends appui sur cette dernière intuition pour dégager ce qui me semble l’interprétation la plus riche du fragment de l’homme-mesure, à partir des remarques d’Eugène Dupréel – une interprétation sociale et normative où Protagoras est le penseur d’une praxis (la médecine, la politique…) qui, dans une situation et dans une communauté données, est capable d’améliorer les impressions subjectives du plus grand nombre. (shrink)

PLATO: PROTAGORAS, trans, with Notes by C. C. W. Taylor. Clarendon Press: O.U.P., 1976. vii+230 pp. £7.50 cloth, £3.75 paper.

Protagoras of Abdera: The Man, His Measure makes a case for the Sophist Protagoras as a philosopher in his own right, while at the same time giving due weight to the complicated doxographical situation.

In this dialogue Plato shows the pretensions of the leading sophist, Protagoras, challenged by the critical arguments of Socrates. The dialogue broadens out to consider the nature of the good life and the role of intellect and pleasure.

Protagoras believes that all beliefs are true. Since Protagoras' belief that all beliefs are true is itself a belief, it follows from Protagoras' belief that all beliefs are true that Protagoras' belief is true. But what about the belief that Protagoras' belief is false? Doesn't it follow, by parallel reasoning and not at all trivially, that if all beliefs are true and there is a belief that Protagoras' belief is false, then Protagoras' belief (...) is false? (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 Great Speech of Protagoras in Plato’s dialogue is now widely seen as an expression of democratic theory, one of the earliest substantial expressions of democratic theory on record. At the same time, there have long been arguments to the contrary, the most formidable presentation of which is an article by Peter Nicholson that appeared in these pages in 1981. In this short piece, I address Nicholson’s skeptical arguments head-on and in full, in a way that has not yet (...) been done. By doing so, I hope to put skeptical arguments of this sort to rest, and to confirm Protagoras’ Great Speech once and for all as an early, and very interesting, fragment of democratic theory. (shrink)

In Protagoras 351b3‑358d4, Socrates apparently admits the use of pleasure and pain as criteria for distinguishing between good and bad. Focusing on this passage, my paper outlines three problems, raising from : the contradiction between Socrates’ objection to pleasure in other platonic dialogues and his assent here to a hypothesis which identifies good with pleasure ; the petitio principii apparently involved in Socrates’ argument to support the thought that knowledge is more powerful than emotions ; the compatibility of his (...) “ hedonist ” hypothesis with his “intellectualist” thought. My paper undertakes to reconstruct Socrates’ argument, in order to answer problem. I contend that this argument makes the humans admit they are deprived of the knowledge both of good and evil and of pleasant and painful, a point sufficient to silence them when they speak of “knowledge being defeated by pleasure”. This contention helps answering problem, through a distinction between so‑called pleasures and real ones. My conclusion answers problem, by showing that, held together, both the “hedonist” hypothesis and the “intellectualist” thought lead to not take pleasure for granted, as required to secure a philosophical approach. (shrink)

Der Beitrag untersucht die Bedeutung des _Protagoras_ für die Entwicklung von Platons politischer Philosophie und Ethik anhand des gleichnamigen Dialogs. Im Mittelpunkt steht zunächst die epideiktische Rede des Protagoras, die die Fragen nach dem Wesen und der Lehrbarkeit der Tugend, nach der besten Erziehung sowie der besten politischen Verfassung aufwirft. Konkret werden in diesem Kontext die Auseinandersetzung um die Bewertung der Demokratie, das Verständnis der politischen Technik, das Verhältnis von Natur und Satzung und die Antizipation der späteren Aristotelischen Differenzierung (...) zwischen ethischen und dianoetischen Tugenden im _Protagoras_ analysiert. Durch all diese Punkte läßt sich schließlich nachdrücklich belegen, wie stark Platons eigener Weg von Protagoras bestimmt worden ist, sofern dieser für ihn auf anerkanntermaßen höchstem Niveau und auf eine geradezu paradigmatische Weise all die Irrwege beschreitet, die ihn zu einem idealen Antipoden von Platons eigenen Intentionen werden lassen konnten. (shrink)

We have far less evidence for Aristotle’s reception of Protagoras than we like to think, and the evidence we do have is somewhere we hardly ever look. With one exception, every reference Aristotle makes to the Measure Doctrine—Protagoras’ claim that humans are the ‘measure of all things —concerns the Doctrine as amplified in Plato’s Theaetetus, and the ‘Protagoras’ in question is Plato’s fictional character as fictional. Metaph. I 1, 1053a35–b3 provides the only exception, where Aristotle offers an (...) anomalous reading of the Doctrine incompatible with the others. The chapter interprets I 1, 1053a35–b3 and concludes that Aristotle attributes the anomalous reading to Protagoras himself. The chapter argues further that every other reference to the Doctrine derives from the Theaetetus. Aristotle formulates ‘the theory of Protagoras’ according to Plato’s self-refutation argument, and his argument that it denies the Principle of Non-contradiction includes premisses from Plato’s argument that are out of place in Aristotle’s own. He moreover attributes to ‘Protagoras’ arguments and dialectical demands that the fictional Protagoras makes in his so-called ‘apology’, so his target is specifically a Platonic invention and not the historical person. This leaves only Metaph. I 1 1053a35–b3 to join his six other references to the historical Protagoras, which makes it Aristotle’s only engagement with the Measure Doctrine as the actual view of his predecessor. (shrink)

This is a collection of the late Heda Segvic's papers in ancient moral philosophy. At the time of her death at age forty-five in 2003, Segvic had already established herself as an important figure in ancient philosophy, making bold new arguments about the nature of Socratic intellectualism and the intellectual influences that shaped Aristotle's ideas. Segvic had been working for some time on a monograph on practical knowledge that would interpret Aristotle's ethical theory as a response to Protagoras. The (...) essays collected here are those on which her reputation rests, including some that were intended to form the backbone of her projected monograph. The papers range from a literary study of Homer's influence on Plato's Protagoras to analytic studies of Aristotle's metaphysics and his ideas about deliberation. Most of the papers reflect directly or indirectly Segvic's idea that both Socrates' and Aristotle's universalism and objectivism in ethics could be traced back to their opposition to Protagorean relativism. The book represents the considerable achievements of one of the most talented scholars of ancient philosophy of her generation. (shrink)

While defending the principle of non-contradiction in Metaphysics 4, Aristotle argues that the Measure Doctrine of Protagoras is equivalent to the claim that all contradictions are true; given all...

Originally published in in 1893, this book contains the text of the Socratic dialogue Protagoras, which discusses a variety of Sophistic and Socratic tenets, including the teachability of virtue. The dialogue also provides an interesting view on the connection between pederasty and education in ancient Athens. Notable Plato scholars James and Adele Adams present an introduction addressing the purpose and themes of the dialogue; a biography of Protagoras and extant fragments of his works are also included. This book (...) will be of value to anyone with an interest in the Platonic, Socratic or Sophistic philosophies. (shrink)