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 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)

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)

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)

This is the review of L. Regner's translation of Protagoras by Plato.

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)

I advocate an ad hominem reading of the hedonism that appears in the final argument of the Protagoras. I that attribute hedonism both to the Many and to Protagoras, but my focus is on the latter. I argue that the Protagoras in various ways reflects Plato’s view that the sophist is an inevitable advocate for, and himself implicitly inclined toward, hedonism, and I show that the text aims through that characterization to undermine Protagoras’ status as an (...) educator. One of my objectives in the course of my arguments is to explore connections between the final argument of the Protagoras and the Man-Measure Doctrine as it is developed in the Theaetetus. (shrink)

Protagoras’ Grand Speech is traditionally considered to articulate a contractualist approach to political existence and morality. There is, however, a newly emerging line of interpretation among scholars, which explores a naturalist layer in Protagoras’ ethical and political thought. This article aims to make a contribution to this new way of reading Protagoras’ speech, by discussing one of its most elaborate versions.

In the Protagoras, Socrates argues that what appears to be akrasia is, in fact, the result of a hedonic illusion: proximate pleasures appear greater than distant ones. On the face of it, his account is puzzling: why should proximate pleasures appear greater than distant ones? Certain interpreters argue that Socrates must be assuming the existence of non-rational desires that cause proximate pleasures to appear inflated. In this paper, I argue that positing non-rational desires fails to explain the hedonic error. (...) However, careful consideration of Socrates’ treatment of appearances reveals that he is not without resources to explain the illusion. I argue that in the Protagoras, appearances are imagistic mental representations that appear true but tend to be false. I suggest that proximate pleasures produce inflated hedonic predictions because we represent them more vividly than distant ones, yielding greater anticipatory pleasure which causes us to overestimate their magnitude. (shrink)

I offer a reading of the two conceptions of the good found in Plato’s Protagoras: the popular conception—‘the many’s’ conception—and Socrates’ conception. I pay particular attention to the three kinds of goods Socrates introduces: (a) bodily pleasures like food, drink, and sex; (b) instrumental goods like wealth, health, or power; and (c) virtuous actions like courageously going to war. My reading revises existing views about these goods in two ways. First, I argue that the many are only ‘hedonists’ in (...) a very attenuated sense. They do not value goods of kind (b) simply as means to pleasures of kind (a); rather, they have fundamentally different attitudes to (a) and (b). Second, the hedonism that Socrates’ defends includes a distinction between kinds of pleasures: (a) bodily pleasures and (c) the pleasures of virtuous actions. This distinction between kinds of pleasures—some that do and some that do not exert the ‘power of appearance’—allows Socrates to address one of the central beliefs in the popular conception of akrasia, namely that it involves a special kind of unruly desire: non-rational appetites for pleasures like food, drink, or sex. Socrates replaces the motivational push of non-rational appetites with the epistemic pull of the appearance of immediate pleasures like food, drink, and sex. (shrink)

The Protagoras features the first known venture into detailed textual interpretation in the Western intellectual tradition. Yet if Socrates is to be taken at his wordat the close of his hermeneutic contest with Protagoras, this venture is to be regarded as a playful demonstration of the worthlessness of texts for aiding in the pursuit of knowledge. This essay is an attempt to view Socrates’ puzzling remarks on this point within their dramatic and historical contexts. I argue that, far (...) from having us lay our inherited texts aside, we can find in the Protagoras a reorientation to the linked activities of reading and dialogue, where we need not be forced to choose between merely using our own unaided voices and relying upon the voices of others in the project of philosophic education. (shrink)

The paper is concerned with the medical and the biological sources of Protagoras' views.

This is the translation of Protagoras' life from Diogenes Laertius' "Lives of eminent Philosophers" (IX, 8).

It is widely held by commentators that in the Protagoras, Socrates attempts to explain the experience of mental conflict and weakness of the will without positing the existence of irrational desires, or desires that arise independently of, and so can conflict with, our reasoned conception of the good. In this essay, I challenge this commonly held line of thought. I argue that Socrates has a unique conception of an irrational desire, one which allows him to explain the experience of (...) mental conflict and weakness of the will, while still holding the Socratic thesis that we always do what we think is good. The resulting picture is both psychologically plausible and philosophically distinctive. (shrink)

Plato’s Protagoras contains, among other things, three short but puzzling remarks on the media of philosophy. First, at 328e5–329b1, Plato makes Socrates worry that long speeches, just like books, are deceptive, because they operate in a discursive mode void of questions and answers. Second, at 347c3–348a2, Socrates argues that discussion of poetry is a presumptuous affair, because, the poems’ message, just like the message of any written text, cannot be properly examined if the author is not present. Third, at (...) 360e6–361d6, it becomes clear that even if the conversation between Socrates and Protagoras was conducted by means of short questions and answers, this spoken mode of discourse is problematic too, because it ended up distracting the inquiry from its proper course. As this paper 2 sets out to argue, Plato does not only make Socrates articulate these worries to exhibit the hazards of discursive commodifi cation. In line with Socrates’ warning to the young Hippocrates of the dangers of sophistic rhetoric, and the sophists’ practice of trading in teachings, they are also meant to problematize the thin line between philosophical and sophistical practice. By examining these worries in the light of how the three relevant modes of discourse are exemplifi ed in the dialogue, this paper aims to isolate and clarify the reasons behind them in terms of deceit, presumptuousness and distraction; and to argue that these reasons cast doubts on the common assumption that the dialogue’s primary aim is to show how sophistical rhetoric must succumb to Socratic dialectic. (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)

Phone is a topic that is not so much explored and examined in Plato. Given eighteen times use of this word in Protagoras, this dialogue can be the suitable place to do a research about its meanings. Here the use of phone covers different subjects and facets of this word as an umbrella word so that in order to reach an ordered and meaningful understanding we place those aspects which are analogous in specific set and title. -/- .

One of the issues in regard to any language including classical Greek is phone. But it seems that Plato reflections on this notion are scattered, fragmented, and the like. With regard to this issue, by working on Protagoras dialogue I have tried to explore and explain the word/idea of phone that is used eighteen times in different meanings and significations.

The position of this paper is that the political developments in Nigeria has bearing with Protagoras’ “man is the measure”. This dictum simply implies humanism. It is based on this that this work posits that humanism is what underlies and informs the political developments in Nigeria. Hence, it is argued that all the political eras in Nigeria have the well-being of human beings as their impetus. Thus, this work is premised on the need to meet up with the welfare (...) of Nigerians, in which its failure has resulted in the political developments experienced within the Nigerian-nation states. This conclusion is reached through critical analysis and evaluation. (shrink)

The phenomenon of self-reference combines self-refutation in the case of Plato’s critics of Protagoras in “Theaetetus” and self-predication in the case of a difficulty which Plato himself faces developing the theory of ideas in “Parmenides”. The author of the article asserts that self-predication does not produce a negative impact on Plato’s metaphysics and in no way destroys the integrality of Plato’s philosophy: It is logically correct as are both his criticism of Protagoras’ relativism and the theory of ideas.

In Metaphysics Γ 4-6 Aristotle argues that Protagoras is committed not just to denying the PNC, but also to asserting its contrary. In this paper, I offer an analysis of this commitment. I try to show that Aristotle is working with a specific idea in mind: a Protagoreanism ontologically linked to the flux doctrine, as Plato suggested in Theaetetus 152-160.

This literature review describes the current state of research on the Greek sophists. It draws on recent work on the beginnings of rhetoric, overviews of sophistic thought and case studies on Protagoras, Gorgias, Antiphon and Prodicus. It is shown that the traditional notion of a sophistic antithesis to philosophy has lost further ground: While earlier »rehabilitations« of sophistic thought still use the dichotomous distinction of philosophy und sophistic, now any generic talk of »the sophist« should better be regarded as (...) misleading. (shrink)

The paper is devoted to the sophistic method of "two-fold arguments" (antilogic). The traditional understanding of antilogic understood as an expression of agonistic and eristic tendencies of the sophists has been in recent decades, under the influence of G.B. Kerferd, replaced by the understanding of antilogic as an independent argumentative technique, having its own sources, essence, and goals. Following the interpretation of G.B. Kerferd, according to which the foundation of the antilogic is the opposition of two logoi resulting from contradictions (...) or opposites, necessarily associated with the contradictory character of the sensual world, in the paper it is argued that the philosophical basis of antilogic should be sought in the presentation of the views attributed to Protagoras and "adherents of flux" in Plato's dialogue Theaetetus. (shrink)

A critical examination of the charge of self-refutation, particularly as leveled by orthodoxy-defending philosophers against those maintaining epistemologically unorthodox, especially relativistic or skeptical, views. Beginning with an analysis of its classic illustration in Plato’s *Theaetetus* as leveled against Protagoras’s “Man is the measure ...,” I consider various aspects of the charge, including logical, rhetorical, pedagogic, affective, and cognitive.

What is paradoxical about the Socratic paradoxes is that they are not paradoxical at all. Socrates famously argued that knowledge is sufficient for virtue and that no one errs willingly. Both doctrines are discussed in the Protagoras between Socrates and the Abderian sophist, however the argumentative line that Socrates chooses to follow in order to refute ‘the many’ has raised a serious degree of controversy among scholars. Is Socrates upholding the hedonistic view? Or, is he only trying to show (...) the bankruptcy of the explanation of akrasia as ‘being overcome by pleasure’ which ‘the many’ advocate? Socrates intends to do the latter, showing that this hedonistic explanation of akrasia leads to absurdity. Plato’s and Socrates’ identification of goodness with pleasure would mark a sudden and unexplained departure from their moral theories, and would render the Socratic denial of akrasia an argument with limited range –only for those assuming hedonism. If we are correct to hold that Socrates does not intend to identify the good with the pleasant, then we are immediately put against a new and much more difficult challenge; that is, to suggest how the Socratic denial of akrasia could regain its catholic plausibility against the commonsensical stance to akrasia, namely that people act against their best judgment due to their impotence to resist to motivational forces such as pleasure, pain, fear, passion and love. Socrates does not offer any other explicit account –apart from the hedonistic one- of how his doctrine could be catholically defended; hence the task of decoding the Socratic line of thought is far from an easy one. The key move in order to decode the puzzling Socratic doctrine is to understand how Socrates treats the notion of ‘knowledge’. For Socrates, moral knowledge is distinguished from mere belief; in this sense, only knowledge has the commanding power which enables one to sustain his best evaluative judgment against other motivational forces and only knowledge is sufficient for the virtuous conduct. By contrast, as mere belief is susceptible to other motivational forces like pleasure, pain, fear, etc. its possessor will, in turn, be susceptible to the revision of his intentions which derive from his best value judgment. In the Protagoras, Socrates implies that intentions grounded on belief can be ‘dragged around’ by desire; and according to my view in this paper, this Socratic stance allows a non-epistemic interpretation of his thesis. According to the traditional epistemic interpretation of the Socratic denial of akrasia, one’s wrongdoing is always a miscalculation that takes place on his practical syllogism. However, my understanding of the Socratic denial of akrasia allows cases of one even going against his best judgment, when his judgment is based on belief. In that sense, a judgment grounded on belief has insufficient power to guarantee that the chosen action will follow, whereas only judgments grounded on knowledge have a commanding and lordly power. For Socrates, everyone always goes for the good but only those with knowledge can infallibly discover and act on the good. Those with mere belief can only reach an apparent good, which may be good or bad. The motivation for the good is not unshakeable for those with mere belief since the grounding of their belief is scarcely strong enough to hold on the correct intention. Socrates therefore holds that the grounding of knowledge influences the motivational state of the moral agent. Thereupon, my interpretation differs from others in suggesting that for Socrates not all the cases of akrasia are cognitive mistakes in their judgment. Rather I hold, in opposition to the received stance on akrasia, that Socrates allows that one could act against his best judgment, when the latter is grounded on mere belief. (shrink)

Kafka's work provoked more than three decades of interpretations before Wagenbach provided information showing that Kafka was quite familiar with the work of Brentano and his Prague followers, including their unique conceptions of natural law, ethical concepts, and human acquaintance with them. Kafka took a lively interest in discussions in this Prague circle, and The Trial may without violence be read as a deliberate illustration for issues in philosophy of law as they would have been understood within this circle. This (...) does not require that it be read as a reflection of Kafka's personality, nor does it require that he accepted Brentano's views. Wagenbach demonstrated Kafka's familiarity with unique conceptions, in the work of Brentano and his Prague followers, of natural law and ethics. Issues involved in these conceptions are cogently illustrated in The Trial. K. is tried for violating a law which is no positive law but a necessary condition for all positive law since all positive laws imply that they ought to be obeyed. Brentano adamantly rejected all forms of nativism. The opposite of 'natural' in the phrase 'natural law' is not 'acquired' but 'conventional.' Acquaintance with natural norms is entirely acquired: persons having no such acquaintance can exist; K. is such a person. Natural norms, have a cognizable inherent correctness; any other norms oblige only through being authoritatively decreed. Conventional guilt or innocence is subject to influence. K.'s quest for a person to exert such influence on his behalf is evidence of his guilt. K. is unaware that absolute guilt is possible. In the Prometheus myth related by Plato's Protagoras, a sense of justice and right is necessary for politically organized society. Without insight into the natural sanction for correct positive laws, citizens cannot fulfill the duty rationally to choose positive laws: citizens will wrong one another, cities perish, humankind will be threatened. The myth gives important clues to the imagery of the parable "Before the Law." Every authentic act of willing requires that something be desired for its own sake. Since there is a plurality of intrinsic goods, authentic action requires recognizing the chosen action to be better than its alternatives. Acquaintance with good, evil, better, and worse is acquired, Brentano insisted, only by perceiving certain affects to be correct. Like judgments, affects are either blind or evident. Basic moral concepts arise like all others from perception. K. could become innocent by acquiring the lacking concepts. Then, actual acquittal would be just despite his guilt when arrested. His trial tests whether he is likely to experience intrinsically correct emotions. Guilt would be objective, independent of any finding by the Court. K.'s guilt entails his lacking any such concept of absolute guilt. He is convinced that guilt depends entirely on the Court, is altogether a matter of authority. This is K.'s delusion concerning his relation to the Court and the Law, the delusion illustrated by the legend, "Before the Law.". (shrink)

The paper discusses the problem of the source of the analogies between philosophical outlook of the Sophists and the skeptical tradition of Pyrrho and his successors. Its main objective is to point out that the similarities in standpoints, arguments and methods between these philosophical phenomena result from the transmission of Plato’s Theaetetus. It is argued that main ideas (phenomenalism, subjectivism, relativity and indeterminacy of things, rejection of being and acceptance of becoming and constant flux, antilogical position consisting in opposing two (...) contradictory statements etc.) which in Theaetetus constituted so called “Secret Doctrine” (attributed by Plato to Protagoras and disciples of Heraclitus), after being criticized by Aristotle in his discussion about the principle of contradiction in Metaphysics (books IV and XI), were acknowledged by Pyrrho and, revived by Aenesidemus, can be found incorporated into the skeptical tradition in the works of Sextus Empiricus. -/- . (shrink)

Each of us is a measure. The project of advocates of change in Plato’s Theaetetus as compared with sophistic thought -/- Summary -/- One of the most intriguing motives in Plato’s Theaetetus is its historical-based division of philosophy, which revolves around the concepts of rest (represented by Parmenides and his disciples) and change (represented by Protagoras, Homer, Empedocles, and Epicharmus). This unique approach gives an opportunity to reconstruct the views of marginalized trend of early Greek philosophy - so called (...) „the sophistic movement”. Paradoxically, previous research shows little interest in sophistic thought as a source of the standpoint of advocates of change („the secret doctrine”). The roots of „the secret doctrine” were investigated in the works of Heraclitus, Aristippus, and Antisthenes or those related to “neoheracliteanism”. However, researchers did not make any significant attempt to confront this concept with the contemporary research on the sophistic movement. The conviction that sophistry was primarily humanistically oriented was one of the main reasons why researches were opposed to the fact that „the secret doctrine” could represent a true expression of Protagoras’ views. This is why J. Burnet and F. M. Cornford in their seminal works assumed that “the secret doctrine” should be attributed to Plato, who simply combined a series of loose statements into one single project. In this work, we argue that the thesis which questions the parallels between the sophists’ interests and the philosophers of nature requires a significant revision. There is ample evidence to suggest that the philosophy of nature was a part of sophists’ research. This is supported by two main arguments. First, the tutors of sophists were philosophers of nature. Second, there are numerous sources that explicitly show sophists’ interest in the physical issues. These sources include anecdotal evidence about the fact that sophists wrote works On nature. There is also information confirming that they deliberated on detailed physical issues. The analogies between the concepts attributed to the advocates of change and our knowledge about sophists from other sources is very wide and contains most elements, which are included in the project of “changeable reality” presented in Theaetetus. The deliberations on the mechanism of perception, which are close to those of flux theory of perception in Theaetetus, are present in the sources referring to Gorgias of Leontinoi, the famous sophist and rhetorician. Also, the second element of “the secret doctrine” that is the metaphysics of flux matches up with what we know about the sophists’ views from other sources. On this basis, one can deduce that – contrary to the tradition which marginalized the role of sophistic considerations on the issue of being and non-being – it was one of the major subjects of sophistic research. Its main point was the criticism of the Eleatic conception of a single and unchangeable being, which also plays a key role in the doctrine of flux in Theaetetus. The epistemological theses which are presented in Theaetetus are borne out in sophistic sources. They include the definition of knowledge as perception, the „Man-measure” formula and a number of principles, which result from these foundational theses. Sophists’ empirical preferences resonate with the theses of the advocates of change in Theaetetus. Special attention that is given to the issues of differences among people, and even to cognitive differences in one person depending on the changeable states to which a person is subject, goes well together with what we know about reciprocal influence between the sophistry and medicine. The consequences of the epistemological conception present in Theaetetus have their equivalents in sophists’ works and other testimonies. An example of these consequences may be the abolition of truth and falsehood or the abolition of contradiction, which finds its expression in the thesis ouk estin antilegein. The analogies also concern reflections on the language itself. The project of the “new language” uses categories, which were developed by sophists. These include the antithesis of nomos and physis. The general intentions of this project reflect Protagoras’ ideas, at least to the extent to which they are known from the sources reporting his thoughts on language. Plato’s Theaetetus can thus be considered a veritable treasury of sophistic motifs. Even though the problem remains unsolved and one is still not able to unambiguously decide about the author of “the secret doctrine”, one can come to a certain conclusion – even if Plato synthesized various doctrines, he must have relied in his project mostly on the elements that he borrowed from sophists. Moreover, the value of reconstructing the project of the advocates of change in Theaetetus does not consist of mere enumeration of sophistic motifs. The dialogue is key to understanding the sophistic movement, whose separate doctrines – for the lack of sources and as a result of centuries-old disregard – are usually treated as rhetorical formulae that are interpreted in many ways and have no philosophical foundations. If it is really the case that the theses attributed to Protagoras in Theaetetus were actually a part or a derivative of Protagoras’ thought, or – speaking more conservatively – if they constitute a synthesis of sophistic thought done by Plato, they could represent philosophical foundations for the most important sophistic theses: the “Man-measure” formula, the ouk estin antilegein principle, the concept of language as a tool, the idea of the relativity of good and the whole practical sphere of sophists’ activity. Contrary to the views of many researchers, we are certain that the representatives of the sophistic movement did not limit themselves only to the application of practical rules, which determined the extent of their educational or rhetorical-political activity. They were capable of creating – indeed, they did create comprehensive projects that embraced the whole thematic scope subject to philosophical reflection. (shrink)

This essay critically examines Rush Rhees’ Wittgensteinian account of language against the backdrop of Plato’s complete reversal of Protagoras’ axiom regarding man as the measure. Rhees jettisons Plato’s notion of Transcendence while retaining his emphasis on dialogue and unity. Despite trenchant points Rhees makes in that regard, it argues that Rhees’ view of language is in the end Protagorean. The essay traces out the problem of autonomy from rules to the practice to discourse itself, addresses Rhees’ missteps in relation (...) to instinctive reactions and intentionality, all of which are instructive in arriving at a better understanding of the relation between God and language. (shrink)

In the Protagoras, Socrates argues that all the virtues are the very same knowledge of human wellbeing so that virtue is all one. But elsewhere Socrates appears to endorse that the virtues-such as courage, temperance, and reverence-are different parts of a single whole. Ambiguity interpretations harmonize the conflicting texts by taking the virtue words to be equivocal, such as between theoretical and applied expertise, or between a power and its deeds. I argue that such interpretations have failed in their (...) specifics and in general, as I defend an alternative that takes into account Socrates' higher purpose in testing others, namely to show them their ignorance of virtue. (shrink)

We provide an intuitive motivation for the hyperreal numbers via electoral axioms. We do so in the form of a Socratic dialogue, in which Protagoras suggests replacing big-oh complexity classes by real numbers, and Socrates asks some troubling questions about what would happen if one tried to do that. The dialogue is followed by an appendix containing additional commentary and a more formal proof.

Guided by the bold ambition to reexamine the nature of philosophy, questions about the foundations and origins of Plato’s dialogues have in recent years gained a new and important momentum. In the wake of the seminal work of Andrea Nightingale and especially her book Genres in Dialogue from 1995, Plato’s texts have come to be reconsidered in terms of their compositional and intergeneric fabric. Supplementing important research on the argumentative structures of the dialogues, it has been argued that Plato’s philosophizing (...) cannot be properly assessed without considering its intellectual debts. By detailed examinations of the practical, generic and textual origins of the dialogues, it has been shown how Plato’s chosen form of philosophical inquiry is deeply influenced by traditional forms of poetry, rhetoric, sophistry, and even medicine... (shrink)

Are the long, wildly inventive etymologies in Plato’s Cratylus just some kind of joke, or does Plato himself accept them? This standard question misses the most important feature of the etymologies: they are a competitive performance, an agôn by Socrates in which he shows that he can play the game of etymologists like Cratylus better than they can themselves. Such show-off performances are a recurrent feature of Platonic dialogue: they include Socrates’ speeches on eros in the Phaedrus, his rhetorical discourse (...) in the Menexenus, and his literary interpretation in the Protagoras. The paper compares these cases to work out the ground rules, purposes and implications of the Platonic agôn, and the Cratylus etymologies in particular. (shrink)

This paper is a test case for the claim, made famous by Myles Burnyeat, that the ancient Greeks did not recognize subjective truth or knowledge. After a brief discussion of the issue in Sextus Empiricus, I then turn to Plato's discussion of Protagorean views in the Theaetetus. In at least two passages, it seems that Plato attributes to Protagoras the view that our subjective experiences constitute truth and knowledge, without reference to any outside world of objects. I argue that (...) these passages have been misunderstood and that on the correct reading, they do not say anything about subjective knowledge. I then try out what I take to be the correct reading of the passages. The paper concludes with a brief discussion of the importance of causes in Greek epistemology. (shrink)

A common perception of Spinoza casts him as one of the precursors, perhaps even founders, of modern humanism and Enlightenment thought. Given that in the twentieth century, humanism was commonly associated with the ideology of secularism and the politics of liberal democracies, and that Spinoza has been taken as voicing a “message of secularity” and as having provided “the psychology and ethics of a democratic soul” and “the decisive impulse to… modern republicanism which takes it bearings by the dignity of (...) every man,” it is easy to understand how this humanistic image developed. Spinoza’s deep interest in, and extensive discussion of, human nature may have contributed to the emergence of this image as well. In this paper, I will argue that this common perception of Spinoza is mistaken and that Spinoza was in fact the most radical anti-humanist among modern philosophers. Arguably, Spinoza rejects any notion of human dignity. He conceives of God’s - and not man’s - point of view as the only objective perspective through which one can know things adequately, and it is at least highly questionable whether he allows for any genuine notions of human autonomy or morality. The notions of ‘humanism’ and ‘anti-humanism’ have been discussed extensively -mainly among continental philosophers - since the end of World War II. Because these notions carry a variety of historical, ideological, and philosophical meanings, it is important to provide at the outset at least a rudimentary clarification of my use of these two terms. By ‘humanism’ I mean a view which (1) assigns a unique value to human beings among other things in nature, (2) stresses the primacy of the human perspective in understanding the nature of things, and (3) attempts to point out an essential property of humanity which justifies its elevated and unique status. This definition of philosophical humanism has only little in common with the historical notion of Renaissance humanism, and seems to match quite well the common understanding of philosophical humanism suggested by current philosophical dictionaries and encyclopedias. This notion of humanism should be understood in contrast to two competing positions. On the one hand, in contrast to the theocentric position that considers humanity to be radically dependent upon God, humanism affirms at least some degree of human independence. On the other hand, in contrast to the naturalist position which endorses the scientific examination of human beings just like any other objects in nature, humanists affirm the existence of a metaphysical and moral gulf between humanity and nature. This gulf assigns a special value to humanity and does not allow us to treat human beings like any other things in nature. For many humanists the nature/humanity gulf does not allow the application of the methods of natural sciences to the disciplines of the humanities. Humanism does not begin with modernity. In order to see how far back we can trace this position, we may recall Protagoras’ saying: “Man is the measure of all things, of things that are, that they are, and of things that are not, that they are not.” In modern philosophy, the humanistic position had regained dominant status since the Renaissance, and variants of this position were vigorously argued for by prominent thinkers such as Pico della Mirandola, Descartes, Leibniz, Kant, Fichte, and finally, Hegel. In this paper, I will argue that Spinoza was a foe, and not a friend, of this tradition. I suggest that, in contrast to these humanist philosophers, Spinoza considers man as a marginal and limited being in nature, a being whose claims and presumptions far exceed its abilities. “To what length will the folly of the multitude not carry them?.... [T]hey imagine Nature to be so limited that they believe man to be his chief part.” Arguably, Spinoza locates the origin of our most fundamental metaphysical and ethical errors in a human hubris which not only tries to secure humanity an exceptional place in nature but also attempts to cast both God and nature in its own human image. (shrink)

Although relativism may be said to be one of the oldest doctrines in philosophy, dating back to the teachings of Protagoras in the 5th century B.C., when it comes to contemporary philosophy, there is no consensus on what makes a view qualify as "relativist". The problem is particularly accute in metaethics, since most of the views that up to a decade ago were described as “relativist” would be more accurately described as "contextualist" or even “expressivist” in light of the (...) distinctions currenty drawn in philosophy of language and semantics. In this chapter, we distinguish two construals of relativism, developed in sections 2 and 3 respectively: the “metaphysical” construal, based on the idea that there is no single, absolute, universal morality, and the “semantic” construal, based on the idea that the truth value of moral claims is relative to a set of moral standards, or moral practices, or some other suitable parameter. Section 1 introduces the core relativist ideas in an informal way, and warns against possible misinterpretations. (shrink)

Plato argues, at Theaetetus 170e-171c, that Protagoras’ relativism is self-refuting. This argument, known as the ‘exquisite argument’, and its merits have been the subject of much controversy over the past few decades. Burnyeat (1976b) has argued in defense of Plato’s argument, but his reconstruction of the argument has been criticized as question-begging. After offering an interpretation of Protagoras’ relativism, I argue that the exquisite argument is successful, for reasons that Burnyeat hints at but fails to develop sufficiently. I (...) consider Protagorean relativism under both of the two possible readings with respect to its scope: global relativism, according to which all truths are only relatively true, and qualified relativism, according to which the relativistic thesis itself is excepted. Taking into consideration some contemporary work on relativism and self-refutation, I show that Plato’s argument succeeds on both of these readings. Given that Protagoras could avoid self-contradiction simply by denying that an enduring subject exists, I argue that the exquisite argument is best understood as confronting Protagoras with a dilemma between self-contradiction and self-defeat of various sorts, all of which lead to the same result, that Protagoras violates the requirements of rational discourse in such a way that he becomes an absurd figure who has nothing to say to us. (shrink)

Esta obra compila los estudios presentados en las I Jornadas de Filosofía del Instituto CEU de Humanidades Ángel Ayala y está prologada por Abelardo Lobato, O. P. Los filósofos tienen el deber de buscar y alcanzar la verdad apelando a las fuerzas de la razón, la cual, por cierto, no impide otras vías genuinas de conocimiento, como la fe. La búsqueda intelectual exige un trabajo de análisis que debe afinarse ante las obcecaciones que a menudo se interponen en el horizonte (...) de la existencia humana. En no pocos momentos de la historia ha habido claudicaciones generalizadas ante esa búsqueda, olvidos más o menos conscientes de que las verdades se alcanzan si se mantiene la esperanza de sabiduría y el amor a ella. El relativismo y el escepticismo se presentan casi como el polo opuesto de esa esperanza y ese amor; como una consecuencia de la “con-fusión” cultural, de las mentiras interesadas y de la desidia moral de algunas sociedades. La nuestra, la europea occidental, es una de ellas. El relativismo afecta al modo de pensar y de comportarse del hombre y es habitual que le lleve por vericuetos que a la postre terminan dañándole a él y a sus congéneres. En este libro se analizan algunos errores que han llevado a suscribir las tesis del relativismo y a rechazar la posibilidad de dar con algunas verdades comunes para todos. La obra tiene dos partes, una histórica y otra temática. Las páginas con enfoque histórico estudian las tesis que sobre el relativismo han mantenido algunos pensadores o corrientes de la filosofía. De su lectura se puede extraer la conclusión de que el fenómeno del relativismo es tan viejo y tan actual como el propio hombre y su apertura inteligente a la verdad. Filósofos de la época antigua de la talla de Protágoras, Pirrón o los “Académicos” coetáneos de San Agustín; modernos como Descartes; contemporáneos como Wittgenstein o Kuhn han dejado huellas que luego abrieron el camino hacia un régimen de pensamiento en que el hombre abandona la posibilidad de admitir verdades universales. Algunos argumentos favorables al relativismo —y, más aún, algunas actitudes “propedéuticas” de él— se han ido instalando culturalmente hasta consolidarse de manera cada vez más indiscutida. La segunda parte analiza el relativismo de forma temática, como un asunto abordable desde las diversas ramas del saber filosófico. Así, se tratan las repercusiones que tiene esta forma de pensamiento en la pragmática, la lógica, la estética o la religión, y se intentan desenmascarar los tópicos y falsos argumentos que justifican un comportamiento ético o religioso “abierto a todas las opciones”. (shrink)

Enneads I: 8.14 poses significant problems for scholars working in the Plotinian secondary literature. In that passage, Plotinus gives the impression that the body and not the soul is causally responsible for vice. The difficulty is that in many other sections of the same text, Plotinus makes it abundantly clear that the body, as matter, is a mere privation of being and therefore represents the lowest rung on the proverbial metaphysical ladder. A crucial aspect to Plotinus’s emanationism, however, is that (...) lower levels of a metaphysical hierarchy cannot causally influence higher ones and, thus, there is an inconsistency in the Egyptian’s magnum opus, or so it would seem. Scholars have sought to work through this paradox by positing that Plotinus is a “paleolithic Platonist” or Socratic. The advantage of this approach is that one may be able to resolve the tension by invoking Socrates’s eliminativist solution to the problem of weakness of will, as found in The Protagoras. In the following article, I argue that such attempts are not wrong-headed just underdetermined. They take up the standard reading of Socratic moral intellectualism, namely the “informational” interpretation and, therefore, fail to render a coherent view of Plotinus’s moral philosophy. The following paper, in contrast, utilizes a new reading of intellectualism advanced by Brickhouse and Smith, which, when subtended with a “powers approach” to causality, resolves the aforementioned, problematic passage of Enneads. (shrink)

Purpose of the article is the reconstruction of ancient Greek and ancient Roman models of religiosity as anthropological invariants that determine the patterns of thinking and being of subsequent eras. Theoretical basis. The author applied the statement of Protagoras that "Man is the measure of all things" to the reconstruction of the religious sphere of culture. I proceed from the fact that each historical community has a set of inherent ideas about the principles of reality, which found unique "universes (...) of meanings". The historical space acquires anthropological properties that determine the specific mythology of the respective societies, as well as their spiritual successors. In particular, the religious models of ancient Greece and ancient Rome had a huge influence on formation of the worldview of the Christian civilization of the West. Originality. Multiplicity of the Olympic mythology contributed to the diversity of the expression forms of the Greek genius, which manifested itself in different fields of cultural activity, not reducible to political, philosophical or religious unity. The poverty of Roman mythology was compensated by a clear awareness of the unity of the community, which for all historical vicissitudes had always remained an unchanging ideal, and which was conceived as a reflection of the unity of the heavens. These two approaches to the divine predetermined the formation of two interacting, but conceptually different anthropological paradigms of Antiquity. Conclusions. Western concepts of divinity are invariants of two basic theological concepts – "Greek" and "Roman". These are ideal types, so these two tendencies can co-exist in one society. The Roman trend continued to be realized by the anti-Roman religion, which took Roman forms and Roman name. Iconoclasm was a Byzantine version of the Reformation, promoted by the Isaurian emperors and failed due to the strong Hellenistic naturalistic lobby. Modern "Romans" are trying to get rid of the last elements of religious naturalism, and modern "Greeks" are trying to preserve the Hellenic elements in Christianity. Patterns can be transformed, but the observational view will still be able to identify their lineage. The developed model allows a deeper understanding of the culture of both ancient societies, as well as the outlook of Western man. (shrink)

Intellectualism about human virtue is the thesis that virtue is knowledge. Virtue intellectualists may be eliminative or reductive. If eliminative, they will eliminate our conventional vocabulary of virtue words-'virtue', 'piety', 'courage', etc.-and speak only of knowledge or wisdom. If reductive, they will continue to use the conventional virtue words but understand each of them as denoting nothing but a kind of knowledge (as opposed to, say, a capacity of some other part of the soul than the intellect, such as the (...) will or the appetites). Virtue intellectualists may be pluralists or monists. If pluralist, they identify the virtues with distinct kinds of knowledge. If monist, they identify all the virtues with one and the same kind of knowledge. In a number of dialogues-including the Euthyphro, Apology, Charmides, Euthydemus, Laches, Lysis, Protagoras, and Republic I-Socrates gives arguments that support Reductive Monist Intellectualism (RMI) about human virtue. I disarm an influential objection to RMI as the correct interpretation of Socrates. (shrink)

This discussion emphasises the diversity, philosophical seriousness and methodological distinctiveness of sophistic thought. Particular attention is given to their views on language, ethics, and the social construction of various norms, as well as to their varied, often undogmatic dialectical methods. The assumption that the sophists must have shared common doctrines (not merely overlapping interests and professional practices) is called into question.

The digression of Plato’s Theaetetus (172c2–177c2) is as celebrated as it is controversial. A particularly knotty question has been what status we should ascribe to the ideal of philosophy it presents, an ideal centered on the conception that true virtue consists in assimilating oneself as much as possible to god. For the ideal may seem difficult to reconcile with a Socratic conception of philosophy, and several scholars have accordingly suggested that it should be read as ironic and directed only at (...) the dramatic character Theodorus. When interpreted with due attention to its dramatic context, however, the digression reveals that the ideal of godlikeness, while being directed at Theodorus, is essentially Socratic. The function of the passage is to introduce a contemplative aspect of the life of philosophy into the dialogue that contrasts radically with the political-practical orientation characteristic of Protagoras, an aspect Socrates is able to isolate as such precisely because he is conversing with the mathematician Theodorus. (shrink)