Sophist

Σοφιστής (Sophistēs)
by Plato
c. 365–360 BCEAncient Greek

Sophist is a late Platonic dialogue in which an unnamed Eleatic Stranger, in conversation primarily with Theaetetus, seeks to define what a sophist is. Using the method of diairesis (division), the Stranger distinguishes sophistry from related technai such as statesmanship and philosophy, and then embarks on a deeper ontological investigation into being and non-being, possibility of false statement, and the interweaving of the fundamental kinds (Being, Rest, Motion, Sameness, Difference). This inquiry resolves the Eleatic puzzle about how non-being can be without contradiction, allowing a coherent account of falsehood and of sophistry as a deceptive art that traffics in seeming rather than genuine knowledge.

At a Glance

Quick Facts
Author
Plato
Composed
c. 365–360 BCE
Language
Ancient Greek
Status
copies only
Key Arguments
  • The Method of Division (diairesis) as a way of definition: The dialogue demonstrates a systematic process of dividing a genus into species to locate the essence of a sophist, while also exposing the limitations and potential distortions that this classificatory technique can produce.
  • The Ontological Status of Non-Being: Against the strict Eleatic denial of non-being, the Stranger argues that non-being must be understood not as absolute nothingness but as 'otherness' (difference) with respect to what is, thereby making sense of negative predication and falsity without embracing contradiction.
  • The Interweaving of the Kinds (Symplokē tôn genôn): The dialogue presents five greatest kinds—Being, Rest, Motion, Sameness, Difference—and argues that these are distinct yet 'interweave', providing a metaphysical framework that allows complex predication such as 'what is moves' or 'what is does not move'.
  • The Possibility of False Statement and Image-Making: By analyzing logos (statement) as a structured combination of name and verb, the Stranger shows how speech can represent things as they are not, and connects this to sophistry as a kind of image-making (eidōlopoiikē) concerned with appearances rather than truth.
  • The Nature and Social Role of the Sophist: The sophist is ultimately characterized as a practitioner of an acquisitive, deceptive technē that trades in opinion, eristic argument, and paid instruction, in contrast to genuine philosophy, which pursues truth and the purification of the soul from false beliefs.
Historical Significance

Sophist is one of Plato’s most influential late dialogues, pivotal for the development of ancient ontology, logic, and theories of meaning. Its treatment of being and non-being shaped later Platonist and Neoplatonist metaphysics, while its account of false statement and the interweaving of kinds contributed to ancient discussions of predication and categories. The dialogue also helped fix the philosophical stereotype of the sophist as a paid purveyor of apparent, rather than real, wisdom, influencing subsequent evaluations of rhetoric, pedagogy, and intellectual professionalism through antiquity and into modern philosophy.

Famous Passages
The Seven (or Multiple) Definitions of the Sophist via Division(216a–231b)
The 'Angler' Paradigm for the Method of Division(218b–221c)
Introduction of the Five Greatest Kinds (Being, Rest, Motion, Sameness, Difference)(254d–258d)
Refutation of Parmenidean Denial of Non-Being and Redefinition as Difference(236e–240c; 257b–259d)
Account of False Statement as Mis-Combining Names and Verbs(261d–263d)
Key Terms
Sophist (σοφιστής, sophistēs): In the dialogue, a paid expert in argument and instruction who produces images of wisdom and refutations, trading in appearance rather than genuine knowledge.
Eleatic Stranger: The unnamed main speaker from the [Eleatic school](/schools/eleatic-school/), associated with [Parmenides](/works/parmenides/), who leads the investigation into the nature of the sophist and of being and non-being.
[Theaetetus](/works/theaetetus/): A young mathematician and interlocutor in both Theaetetus and Sophist, serving here as the primary respondent to the Eleatic Stranger’s questions.
Diairesis (division, διαίρεσις): A method of philosophical analysis that defines a kind by repeatedly dividing a genus into species, aiming to locate the specific essence of a thing such as the sophist.
[Logos](/terms/logos/) (λόγος): Speech, statement, or account; in Sophist it is analyzed as an articulated combination of names and verbs that can be true or false in representing beings.
Being (to on, τὸ ὄν): What is, or that which has real existence; in the dialogue it is treated as one of the 'greatest kinds' that interweaves with others like motion and rest.
Non-Being (to mē on, τὸ μὴ ὄν): Reinterpreted by the Eleatic Stranger not as absolute nothingness but as 'otherness' or difference with respect to what is, thus grounding negation and falsity.
Five Greatest Kinds (μέγιστα γένη): The most comprehensive [categories](/terms/categories/)—Being, Motion, Rest, Sameness, Difference—whose 'interweaving' explains how things can be one and many, alike and unlike.
Difference (heterotēs, ἑτερότης): The 'otherness' kind that distinguishes things from one another; identified with non-being in a qualified sense, enabling statements like 'x is not y.'
[Mimesis](/terms/mimesis/) (μίμησις): Imitation or representation; in the dialogue, sophistry is cast as a mimetic [technē](/terms/techne/) producing images in speech that resemble but do not match true being.
Eristic (ἐριστική): A contentious art of argument aimed at victory and refutation rather than truth, closely associated with sophistic disputation in Sophist.
Technē (τέχνη): Art, craft, or systematic skill; the sophist is located within a hierarchy of technai, such as acquisitive or productive arts, through the method of division.
Image-Making (eidōlopoiikē, εἰδωλοποιική): The art of producing images or appearances, especially deceptive ones; the Stranger classifies sophistry as a branch of such image-making in discourse.
Interweaving of Kinds (symplokē tôn genôn, συμπλοκὴ τῶν γενῶν): The mutual combination of the greatest kinds, allowing complex [predication](/terms/predication/) and explaining how statements like 'motion is' or 'rest is not motion' are possible.
Parmenidean Monism: The Eleatic doctrine, attributed to Parmenides, that reality is a single, unchanging being and that non-being cannot be thought or spoken, challenged by Sophist.

1. Introduction

Plato’s Sophist is a late dialogue that combines a technical inquiry into the nature of being and non-being with a more practical question: what, exactly, is a sophist? The work is distinctive in Plato’s corpus for assigning the leading role not to Socrates but to an unnamed Eleatic Stranger, who conducts a rigorous investigation with the young mathematician Theaetetus.

The declared topic is the definition of the sophist, a figure familiar in classical Athens as a professional teacher of rhetoric and virtue for pay. Yet the dialogue quickly moves far beyond professional typology. In attempting to say what a sophist is—someone who seems wise without truly being wise—the interlocutors confront difficulties about falsehood, appearance, and negation. These questions, in turn, require a fundamental re-examination of what it is for anything to be or not be.

The dialogue is often grouped with Theaetetus and Statesman as part of an intended trilogy on knowledge and expertise. Within this triad, Sophist is widely viewed as the metaphysical and logical centerpiece, developing an account of:

  • how statements can be true or false,
  • how predicates can be meaningfully combined,
  • how plurality, change, and difference can be reconciled with Eleatic claims about the unity of being.

Interpretations diverge on whether Sophist presents a mature, systematic Platonic metaphysics (for example, of “Forms” and “greatest kinds”), or whether it primarily offers methodological tools for dialectical inquiry without committing Plato to a fully worked-out ontology. Nonetheless, most scholars agree that the dialogue marks a turning point in ancient thought about categories, predication, and the nature of philosophy vis-à-vis sophistry.

2. Historical and Philosophical Context

Intellectual and Political Setting

Sophist is commonly dated to the mid-360s BCE, during the later years of Plato’s activity in the Academy. Athens at this time had already witnessed several generations of sophists and rhetorical teachers, from Protagoras and Gorgias to Isocrates and their successors. Public anxiety about persuasive speech, democratic deliberation, and the moral status of paid instruction formed an important background.

Philosophically, the dialogue responds to two major currents:

  • Sophistic rhetoric and relativism, associated with figures like Protagoras (“man is the measure”) and Gorgias (who famously argued that nothing exists, or if it does, it cannot be known or communicated).
  • Eleatic philosophy, especially Parmenides’ strict monism, which held that “what is not” cannot be thought or spoken, and that reality is one, ungenerated, and unchanging.

Place in Plato’s Development

Most stylometric and thematic studies treat Sophist as a late dialogue, near Theaetetus, Parmenides, and Statesman. Scholars who adopt a developmental view of Plato generally see here:

  • a more explicit and technical reflection on ontology and logic than in middle dialogues like Republic or Phaedo,
  • an attempt to accommodate or revise Eleatic arguments in light of Plato’s own theory of Forms.

Alternative, “unitarian” readings downplay developmental divisions, emphasizing continuity between Sophist and earlier dialogues, and treating its innovations as refinements rather than reversals.

Philosophical Problems in View

The dialogue is situated at the crossroads of several classical Greek debates:

IssueContext in Greek Thought
Nature of being and non-beingParmenides, Melissus, Gorgias
Possibility of false belief and false speechSophistic paradoxes, Socratic elenchus
Status of professional wisdom and intellectual labor for paySocial role of sophists and rhetoricians
Relation between one and many, change and restHeraclitean vs. Eleatic traditions

Sophist thus intervenes in ongoing controversies about whether philosophy can secure stable knowledge in a world of contention, persuasion, and apparent flux.

3. Author and Composition

Authorship

Ancient and modern tradition overwhelmingly attribute Sophist to Plato. The dialogue is included without serious question in all major ancient lists of Plato’s works and in the medieval manuscript tradition. Modern philological methods (analysis of style, vocabulary, and syntax) support this attribution, and Sophist is generally classed among Plato’s authentic “late” works.

Date and Circumstances of Composition

Most scholars date the dialogue to c. 365–360 BCE, basing this on:

  • stylistic affinity with Theaetetus and Statesman,
  • its apparent presupposition of arguments from Parmenides,
  • its sophisticated engagement with contemporaneous logical and rhetorical issues.

There is no explicit ancient testimony fixing the date, so this remains a scholarly reconstruction, albeit a widely accepted one.

Relation to the Academy

Internal evidence suggests a pedagogical context within the Platonic Academy. The dialogue’s intricate argumentation, compressed dramatic frame, and technical vocabulary are often taken to indicate an audience of advanced students rather than the general public. Some interpreters propose that the work served as:

  • a model of dialectical method (especially division),
  • a vehicle for clarifying the Academy’s stance toward Eleatic metaphysics and sophistic rhetoric.

The “Trilogy” with Theaetetus and Statesman

The work itself presents Sophist and Statesman as successors to the conversation of Theaetetus. Socrates, at Sophist 217a–b, explicitly asks the Eleatic Stranger to define first the sophist and then the statesman, linking them programmatically.

Scholars differ on how tightly structured this trilogy is:

  • Some argue for a carefully planned sequence—knowledge (Theaetetus), deceptive expertise (Sophist), and genuine political expertise (Statesman).
  • Others see looser thematic continuity, suggesting the works may have been composed over an extended period, with retroactive framing devices.

Despite these disputes, Sophist is widely viewed as central to Plato’s late exploration of knowledge, ontology, and the nature of expertise.

4. Dramatic Setting and Characters

Setting

The dramatic frame of Sophist is notably minimal. The dialogue takes place in Athens, on the day following the discussion of Theaetetus. The precise physical setting is not elaborated, unlike dialogues such as Phaedrus or Symposium. This sparse backdrop is often seen as reflecting the work’s focus on abstract, technical argument rather than rich dramatic development.

Main Characters

CharacterRole in the Dialogue
SocratesPresent at the beginning, he sets the task (to define the sophist and later the statesman) but then largely withdraws, listening in silence.
Eleatic StrangerThe unnamed main speaker, associated with the school of Parmenides, who leads the investigation using division and dialectic.
TheaetetusYoung mathematician and primary interlocutor; he answers the Stranger’s questions and helps test the proposed divisions.
Theodorus of CyreneMathematician who introduces the Stranger and Theaetetus to Socrates and then recedes from the discussion.

The Eleatic Stranger

The Stranger’s identity and role are major points of interest. He is introduced by Theodorus as a philosopher from Elea, the home of Parmenides and Zeno. Unlike Socrates, he:

  • is not Athenian,
  • does not practice elenchus in the usual Socratic manner,
  • employs diairesis (division) and elaborate ontological reasoning.

Interpretations differ on whether the Stranger should be read as:

  • a mouthpiece for Plato’s later views,
  • a representative interlocutor from an Eleatic tradition whom Plato partly endorses and partly corrects.

Dramatic Economy

The confinement of the action to a small circle of mathematically and philosophically trained interlocutors is often linked to the dialogue’s thematic concerns. The minimalist drama:

  • keeps focus on the method and arguments,
  • highlights a contrast between Socrates’ silent presence and the Stranger’s new style of inquiry,
  • preserves continuity with Theaetetus, where Theaetetus and Theodorus first appeared.

The dramatic setting thus frames Sophist as a highly specialized conversation within the intellectual milieu of the Academy.

5. Structure and Organization of the Dialogue

Sophist exhibits a carefully staged progression from a practical classificatory problem to deep metaphysical and logical issues, then back again.

Overall Structural Arc

PhaseStephanus (approx.)Content Focus
1. Framing216a–217bIntroduction of the Eleatic Stranger, statement of the task (define the sophist).
2. Methodological Prelude218b–221cExample of defining an angler via division.
3. Multiple Sophist-Definitions221c–231bSeries of divisions yielding various characterizations of the sophist.
4. Eleatic Puzzle231b–242bRecognition that defining the sophist involves solving the problem of non-being.
5. Ontological Aporiae242b–250dDifficulties about being, motion, rest, and the one–many problem.
6. Five Greatest Kinds254d–258dIntroduction and interaction of Being, Rest, Motion, Sameness, Difference.
7. Non-Being and Negation257b–259dRedefinition of non-being as difference, rehabilitation of negation.
8. Logos and Falsehood259e–263dAccount of statement as name + verb, explanation of false logos.
9. Final Return to Sophist263d–268dCompletion of the definition of the sophist as mimetic, deceptive technē.
10. Transition268d–268eBrief look ahead to the Statesman.

Functional Organization

The structure has often been read as comprising two main, interdependent movements:

  1. Pragmatic Taxonomy (216a–231b; 263d–268d)
    The Stranger employs division to classify technai and locate sophistry among acquisitive and image-making arts. The multiple, partial definitions highlight different social and intellectual facets of the sophist (hunter, merchant of learning, disputant, imitator).

  2. Ontological–Logical Investigation (231b–263d)
    The attempt to explain sophistic deception forces a detour into fundamental questions about being, non-being, and logos. This central section provides the conceptual tools needed to complete the classificatory task.

Some interpreters argue that the first and last parts are primarily methodological and ethical, while the middle presents a more systematic metaphysical theory. Others suggest that the dialogue’s unity lies in presenting a single extended lesson in dialectic, where methodological, logical, and ontological issues are inseparable.

6. The Method of Division and Definition of the Sophist

Division (Diairesis) as Method

The dialogue’s most conspicuous methodological feature is diairesis—the repeated division of a general genus into more specific species to arrive at an adequate definition. The Stranger introduces this by defining the angler:

Angling is a part of hunting, which is a part of acquisition, distinguished by its object (fish), location (water), and technique (hooking from below).

This paradigm illustrates:

  • descending from broader to narrower categories,
  • aiming at “cutting at the joints” of nature,
  • seeking a definition that specifies what something is by placing it in a structured taxonomy.

Multiple Routes to the Sophist

The metodo is then applied to the sophist, yielding several partial or rival definitions. Key lines of division include:

Definition-TypeRough Characterization
Sophist as hunterA hunter of rich, young men, pursued through persuasion and flattery.
Sophist as traderA wholesaler or retailer of learning, selling doctrines or arguments.
Sophist as teacherA paid instructor in virtue and excellence (arete) who promises wisdom.
Sophist as eristicA disputant engaged in refutation for the sake of victory.
Sophist as image-makerA producer of verbal images and semblances rather than realities.

Interpretations differ on how these relate:

  • Some see them as cumulative layers converging on a single, complex essence.
  • Others regard them as distinct social “species” loosely grouped under one name, illustrating the flexibility (and possible indeterminacy) of division.

Status and Limits of Division

Scholars debate whether Plato in Sophist presents division as:

  • a rigorous scientific method of definition, implying real natural kinds, or
  • a more heuristic dialectical tool, whose success depends on the skill and aims of the dialectician.

Critics point to asymmetries in the divisions and occasional seeming arbitrariness in how genera are split. Defenders argue that the Stranger’s practice, especially in the final definition of sophistry as a mimetic technē producing deceptive appearances, shows division’s power to clarify complex social and intellectual phenomena.

7. The Eleatic Challenge: Being, Non-Being, and the One

The Eleatic Background

The dialogue’s central philosophical tension arises from Eleatic monism, especially Parmenides’ claim that “what is not” cannot be thought or spoken. This position, as received in the dialogue, stresses:

  • the unity and unchanging character of true being,
  • the impossibility of meaningful reference to non-being,
  • the rejection of coming-to-be, passing-away, and change as unreal.

The Sophist and the Problem of Non-Being

In attempting to characterize the sophist as one who makes things appear otherwise than they are, the Stranger and Theaetetus confront a difficulty: describing the sophist seems to require talk of falsehood, appearance, and what is not. Yet:

If non-being is utterly excluded, then false statements, deceptive images, and sophistry itself appear unintelligible.

This impasse is framed as an Eleatic challenge that must be answered before a satisfactory definition of the sophist can be given.

Being, the One, and the Many

The ensuing discussion (242b–250d) expands the Eleatic problem into broader questions:

  • Is being identical with one? If so, how can there be many beings?
  • Is being equivalent to motion (as some Heracliteans might hold) or rest (as Eleatics suggest)? If either, how can we meaningfully predicate the other of it?
  • How can entities both participate in many forms (being, rest, motion, etc.) and yet remain one?

These puzzles generate a series of aporias (perplexities) about the relation between:

ConceptOpposed Term
OneMany
MotionRest
SamenessDifference

The Stranger maintains that a rigid Eleatic stance—collapsing all into a single, undifferentiated being—cannot accommodate such distinctions or ordinary discourse about change and plurality. However, he also resists a simple embrace of flux, seeking a more nuanced framework in which some forms “mix” with others and some do not.

The Need for a Revised Ontology

The Eleatic challenge thus functions as a spur to develop a more complex account of being that:

  • allows a plurality of fundamental kinds,
  • explains how they can both be distinct and interrelated,
  • makes room for non-being in some qualified sense.

This sets the stage for the later introduction of the five greatest kinds and the reconception of non-being as difference.

8. The Five Greatest Kinds and Their Interweaving

Identification of the Five Kinds

To resolve the earlier aporiae, the Stranger introduces five “greatest kinds” (megista genē), which are said to pervade all beings:

  1. Being (to on) – that which is, or has genuine existence.
  2. Motion (kinesis) – change or movement.
  3. Rest (stasis) – stability or unchangeability.
  4. Sameness (tauton) – what makes something the same as itself or like another.
  5. Difference (heteron) – what makes something other than another.

These kinds are described as exceedingly general and in some sense trans-categorical, applying across different domains of reality.

Interweaving (Symplokē tôn Genôn)

A key claim is that these kinds “interweave”: some can combine with each other, others cannot. For example:

  • Motion and Rest both are, so each participates in Being.
  • But Motion does not participate in Rest (and vice versa); they do not mix.
  • Both Motion and Rest are the same as themselves and different from each other, so they participate in Sameness and Difference.

This yields a patterned network of relations:

KindWith BeingWith MotionWith RestWith SamenessWith Difference
BeingYesYesYesYes
MotionYesNoYesYes
RestYesNoYesYes
SamenessYesYesYesYes
DifferenceYesYesYesYes

(The table is schematic; the dialogue explores these relations more informally.)

Philosophical Functions

Interpreters attribute several roles to this doctrine:

  • It explains how complex predications (e.g., “motion is,” “rest is not motion”) are possible, without collapsing distinctions.
  • It provides a controlled way of navigating between Eleatic oneness and empirical plurality.
  • It lays groundwork for an account of logos: statements become possible because kinds can combine in structured ways.

Debate persists over whether Plato here offers a category theory avant la lettre, a metaphysical hierarchy of forms, or a more modest logical schema for discussing predication. Some see a significant shift from the middle dialogues’ focus on particular Forms (Beauty, Justice, etc.) toward a higher-level reflection on the conditions under which any form can be predicated of anything.

9. Non-Being as Difference and the Possibility of Negation

Reinterpreting Non-Being

Building on the five kinds, the Stranger proposes a controversial thesis: non-being is not sheer nothingness, but a particular way of participating in the kind Difference. Specifically:

Non-being is “the other of being”—that which is other than what is, in some respect.

On this view, to say “x is not F” is to say: x participates in kinds different from F. Non-being thus becomes relative and qualified (non-F, non-G, etc.), rather than an absolute opposite of being.

Rehabilitation of Negation

This reconception aims to vindicate ordinary negative statements and falsehoods against Eleatic objections. For example:

  • When one says “Theaetetus is not tall,” one is not invoking absolute nothingness, but marking Theaetetus as different from the tall things.
  • When someone asserts something false, they are combining subject and predicate in a way that misrepresents how a thing stands to the kinds it actually participates in.

The Stranger insists that this does not contradict Parmenides’ insight that “what is not” in the sense of utter nothing cannot be thought. Rather, he proposes that the Eleatic phrase “is not” should always be parsed as “is other than.”

Interpretive Issues

Scholars diverge on how fully this satisfies the Eleatic challenge:

  • Some argue it successfully dissolves the paradox of non-being by shifting from an absolute to a relational conception.
  • Others contend it changes the subject, since Parmenides’ concern was with the impossibility of referring to what has no being whatsoever, not merely with relative difference.

There is also discussion of how far this notion of non-being as difference extends:

  • Is every instance of negation reducible to otherness with respect to a kind?
  • Does this suffice to account for all kinds of falsehood, including those about non-existent individuals (e.g., fictional characters)?

Despite these questions, the dialogue treats the redefinition of non-being as the key step that makes later analyses of logos and sophistic deception intelligible.

10. Logos, False Statement, and Image-Making

Logos as Name–Verb Combination

After clarifying non-being, the Stranger turns to logos (speech, statement). He distinguishes:

  • Names (onomata) – roughly, noun-like elements referring to subjects,
  • Verbs (rhēmata) – predicate-like elements indicating actions or states.

A mere list of names or verbs does not yet constitute a statement. A logos arises when at least one name is combined with one verb in a grammatically ordered way, yielding something that can be true or false.

Possibility of Falsehood

Falsehood is explained in terms of miscombination:

A statement is false when it presents things as being in a way that is different (heteron) from how they actually are.

For instance, “Theaetetus flies” attributes to Theaetetus a kind (flying) in which he does not participate. Thanks to the earlier account of non-being as difference, the dialogue can now say that in such a case the logos speaks of “what is not” (Theaetetus-as-flying) without invoking sheer nothingness.

This analysis has been taken as an early exploration of:

  • the structure of propositions,
  • the conditions for truth and falsity,
  • the dependence of meaningful discourse on a system of kinds that can combine and fail to combine.

Image-Making (Mimesis) in Speech

With the possibility of false logos secured, the Stranger connects it to image-making (mimesis):

  • There is a productive technē that makes images—likenesses or semblances of things.
  • Within this, one kind produces accurate likenesses, another produces appearances that only seem correct from a particular vantage point.

The sophist is ultimately located in the second, as one who produces discursive images:

AspectSophistic Image-Making
MediumSpeech and argument (logos)
ProductRefutations, explanations, and doctrines that resemble knowledge but lack it
MechanismStrategic use of false or misleading statements, exploiting the hearer’s ignorance

Some interpreters emphasize the continuity between this verbal mimesis and Plato’s broader concerns about poetic and artistic representation. Others focus on its contribution to the ancient philosophy of language, treating the sophist as someone who manipulates the structural possibilities of logos—especially falsehood—for persuasive or profit-seeking ends.

11. Philosophical Method: Dialectic versus Sophistry

Dialectic in Sophist

The Eleatic Stranger’s procedure is frequently described as dialectic, understood here as a disciplined inquiry into the relations among kinds and the proper use of division. Key features include:

  • careful sorting of genera and species,
  • attention to compatibility and incompatibility among kinds,
  • readiness to revise assumptions when contradictions or paradoxes arise.

Dialectic, on this portrayal, aims at clarifying what each thing is and how it relates to others, guided by a concern for truth and coherence.

Sophistry as a Counterpart

Sophistry, by contrast, is repeatedly associated with:

  • eristic (contentious argument) rather than genuine inquiry,
  • the pursuit of victory and reputation instead of understanding,
  • skillful manipulation of appearances, ambiguity, and falsehood.

Yet the dialogue also shows that sophists often imitate the external trappings of dialectic—asking questions, offering refutations, and speaking about virtue and knowledge.

Methodological Overlaps and Tensions

This raises a central interpretive issue: how distinct are dialectic and sophistry in practice?

  • Some readers stress a sharp contrast: dialectic responsibly tracks the real structure of kinds, while sophistry exploits the surface features of language and opinion without regard to reality.
  • Others note continuities between Socratic/Stranger-style questioning and sophistic techniques, suggesting that Plato is aware of the potential for dialectic itself to be misused or to appear sophistical.

The dialogue does not offer a simple procedural criterion that unambiguously separates the two. Instead, the difference appears to lie in:

FeatureDialecticSophistry
AimTruth, understandingPersuasion, victory, profit
Relation to kindsRespects and uncovers genuine structuresIgnores or distorts structures for effect
Attitude to refutationTool for learningWeapon for humiliation or display

Some scholars argue that Sophist thereby provides a self-reflective account of philosophy’s own methods, acknowledging their proximity to sophistic practices while insisting on divergent aims and standards of rigor.

12. Key Concepts and Technical Vocabulary

This section highlights central terms as they function specifically in Sophist.

TermUsage in Sophist
Sophist (sophistēs)A practitioner of a technē that produces images of wisdom and refutations; located among acquisitive and image-making arts; associated with eristic and deception.
Dialectic (dialektikē)The art of discerning which kinds “mix” and which do not; involves division and the study of being, non-being, and the greatest kinds.
Diairesis (division)Method of defining a thing by successively dividing a genus into species; illustrated with the angler and repeatedly applied to the sophist.
TechnēSystematic craft or expertise; used to classify hunting, trading, teaching, image-making, and sophistry.
LogosArticulated speech combining names and verbs; the vehicle of truth and falsity, and the medium through which sophists operate.
Onoma (name) and rhēma (verb)Basic components of logos; statement arises only when at least one of each are combined in a syntactically appropriate way.
Being (to on)One of the five greatest kinds; that in virtue of which things are; participates in and is participated in by other kinds.
Non-Being (to mē on)Reinterpreted as the kind Difference when opposed to Being; understood as “the other of being” rather than absolute nothing.
Five Greatest Kinds (megista genē)Being, Motion, Rest, Sameness, Difference; fundamental categories whose interrelations ground predication and discourse.
Sameness (tauton)The kind responsible for a thing’s identity with itself and resemblance to others.
Difference (heteron)The kind responsible for otherness; when opposed to Being it yields “non-being” in a qualified sense.
Symplokē tôn genôn (interweaving of kinds)The structured mixing of the greatest kinds; basis for meaningful combination of predicates and for the distinction between possible and impossible statements.
Mimesis (imitation)Production of images or appearances; sophistry is treated as a mimetic technē in speech.
Eristic (eristikē)Disputatious argument aimed at victory; distinguished from serious dialectical inquiry but easily confused with it.
Eidōlon / eidōlopoiikē (image / image-making)Distinction between genuine likenesses and deceptive appearances; sophistry classed under the latter as producing misleading verbal images.

Interpretive debates often focus on whether terms like Being, Sameness, and Difference are to be understood as metaphysical forms, logical categories, or some combination of both.

13. Famous Passages and Their Interpretation

The Angler Paradigm (218b–221c)

The Stranger’s definition of the angler via division is widely cited as a canonical example of Platonic diairesis. Commentators disagree on its purpose:

  • Some see it as a didactic miniature, training Theaetetus (and readers) to follow complex classificatory reasoning.
  • Others note its playful, slightly over-elaborate character and suggest it also problematizes division by exposing how much depends on selective branching and perspective.

The Multiple Definitions of the Sophist (216a–231b)

The sequence of partial definitions—hunter, trader, teacher, eristic, image-maker—has been interpreted:

  • as a progressive deepening, where each step reveals a more essential feature of sophistry, culminating in the focus on image-making,
  • or as a critical satire of the instability of social labels and the difficulty of pinning down complex roles.

Some scholars tie this passage to historical sophists; others caution against straightforward biographical readings.

The Five Greatest Kinds (254d–258d)

The introduction of Being, Motion, Rest, Sameness, Difference is one of the most discussed passages. Competing views include:

  • a realist reading: Plato here articulates a genuine ontology of supreme Forms or categories;
  • a logical reading: the kinds function primarily as devices for analyzing predication and compatibility among terms;
  • a mixed reading: they are both metaphysical and logical, expressing structural features of reality that underwrite thought and language.

Refutation of Parmenidean Non-Being (236e–240c; 257b–259d)

The argument that non-being is Difference has prompted extensive commentary. Some interpret it as a rehabilitation of Parmenides (preserving his ban on absolute nothingness while refining his view), others as a decisive break that reopens the space for plurality, change, and negation.

Account of False Statement (261d–263d)

The analysis of logos as name + verb and of falsehood as miscombination is often discussed in the history of logic and semantics. Debates center on:

  • whether Plato anticipates a notion of propositional structure,
  • how his view compares to later Aristotelian logic,
  • and whether the account can handle more complex cases, such as existentially empty subjects.

Together, these passages form focal points for discussions of Plato’s late style, his metaphysical commitments, and his contribution to theories of language and representation.

14. Textual History, Transmission, and Editions

Ancient Transmission

Sophist circulated in antiquity alongside other Platonic dialogues, initially in papyrus rolls and later in codices. There is no evidence of alternative versions or serious ancient doubts about its authenticity. The dialogue was read and commented on by:

  • Middle Platonists and Neoplatonists (e.g., Plotinus, Proclus), often through the lens of a hierarchical metaphysics of being and non-being.
  • Aristotelian and later commentators interested in logic and categories.

No autograph manuscript survives; all extant texts derive from later copies.

Medieval Manuscripts

Like much of Plato, Sophist is preserved in a group of Byzantine manuscripts, often collected into complete or near-complete sets of the dialogues. Key witnesses include:

ManuscriptDate (approx.)Features
Codex Clarkianus (Bodl. E D. Clarke 39)9th c.Important for many Platonic dialogues, though Sophist-specific details require specialist study.
Other Byzantine codices10th–14th c.Provide overlapping textual traditions, with generally minor variations in Sophist.

Textual critics generally regard the tradition as relatively stable, with most variants concerning orthography, minor word order, or small additions/omissions.

Modern Critical Editions

The standard reference edition is:

John Burnet (ed.), Platonis Opera, vol. 1, Oxford Classical Texts.

Burnet’s text, based on collation of the main manuscripts, remains a primary point of reference, though later scholars have proposed occasional emendations. Alternative or supplemented editions include:

  • E. A. Duke et al., revised OCT volumes (for related dialogues),
  • C. J. Rowe’s text and translation (Aris & Phillips), which integrates textual notes and commentary.

Stephanus Pagination and Citation

Modern scholarship cites Sophist using Stephanus pagination, derived from Henri Estienne’s 1578 edition of Plato’s works. References are given by:

Sophist 254d–258d

indicating page and letter sections common to virtually all modern editions and translations.

Translations

A range of translations serves different audiences:

TranslatorFeatures
F. M. CornfordPhilosophically interpretive, pairs Sophist with Theaetetus.
Harold N. Fowler (Loeb)Literal, with facing Greek text.
Nicholas P. WhiteReadable modern English with introductory notes.
Lesley BrownScholarly, with detailed attention to language and ontology.

These translations reflect differing views on how best to render key technical terms (e.g., logos, ousia, genos), which in turn shape interpretive debates.

15. Major Interpretive Debates and Criticisms

Status of the Method of Division

One major debate concerns the method of division:

  • Some see it as Plato’s proposal for a scientific methodology, capable of yielding objective classifications of natural kinds, including human roles like the sophist.
  • Others argue it is illustrative and exploratory, showing both the power and limitations of taxonomic thinking; they point to apparent arbitrariness in some divisions as evidence that the method cannot by itself guarantee correctness.

Nature of the Five Greatest Kinds

Interpreters disagree on how ontological the five kinds are:

  • Metaphysical realists hold that they are fundamental aspects of reality, akin to super-Forms or categories.
  • Logical interpreters understand them mainly as devices for analyzing predication and the structure of discourse.
  • Hybrid views claim Plato intentionally blurs metaphysical and logical dimensions.

Critics sometimes describe the schema as ad hoc or under-argued, questioning why exactly five kinds are posited and how they relate to the broader theory of Forms.

Adequacy of the Account of Non-Being

The redefinition of non-being as difference has been both praised and challenged:

  • Supporters see it as an ingenious solution to the Eleatic problem, preserving Parmenides’ ban on absolute nothing while legitimizing negation and falsity.
  • Detractors contend that it fails to address the original concern about speaking of what does not exist at all, or that it confuses logical negation with ontological otherness.

Questions also arise about whether all forms of negation can be reduced to difference, and how the account handles empty or fictional reference.

Distinction between Philosophy and Sophistry

Another contested issue is how sharply Plato succeeds in distinguishing philosophy from sophistry:

  • Some argue the dialogue clearly contrasts a truth-seeking, ontologically grounded dialectic with a purely rhetorical, appearance-focused sophistry.
  • Others note that the methods (questioning, refutation, argumentative agility) often look similar, suggesting an uncomfortable proximity between philosophy and its sophistic double.

This has led to broader reflections on whether Sophist reveals Plato’s awareness of the ambiguous public image of philosophers in democratic Athens.

Dramatic and Literary Critiques

Compared with more dramatic dialogues, Sophist has been criticized for:

  • a thin dramatic frame,
  • limited characterization, especially of the Eleatic Stranger,
  • long stretches of abstract argument.

Some readers see this as a weakness, diminishing pedagogical and literary appeal. Others interpret the austerity as intentional, signaling a shift toward a more “technical” philosophical style in Plato’s later period.

16. Relation to Theaetetus, Statesman, and Other Dialogues

Connection with Theaetetus

Sophist begins the day after the conversation of Theaetetus and features the same Theaetetus and Theodorus. The relation is often framed as:

TheaetetusSophist
Central topic: What is knowledge?Central topic: What is the sophist? (and, in the background, what is being and non-being?)
Ends in aporia about knowledgeDevelops tools (division, ontology, logic) that may clarify conditions for knowledge

Some scholars view Sophist as providing the metaphysical and logical underpinnings that Theaetetus lacked, while others see the connection as more thematic than systematic.

Anticipation of Statesman

At the close of Sophist, Socrates reminds the Stranger of the promise to define the statesman next. Statesman (or Politicus) is widely regarded as a direct sequel, sharing:

  • the same main interlocutors (Stranger, Socrates, Theaetetus),
  • continued use of division,
  • concern with distinguishing genuine expertise from its imitations.

In this trilogy-like arrangement:

  • Sophist clarifies the nature of false expertise,
  • Statesman explores true political expertise and its criteria.

Debates concern how tightly these works were planned as a unit and whether they form a coherent progression in Plato’s thinking about knowledge and rule.

Relation to Other Dialogues

Connections to several other dialogues are frequently noted:

  • Parmenides: Sophist seems to respond to the earlier dialogue’s criticisms of the Forms and its aporetic treatment of the one and many. Some interpret it as a constructive sequel, offering a revised metaphysical framework.
  • Republic: The concern with mimesis, appearance vs. reality, and deceptive rhetoric recalls Republic’s treatment of poets and sophists, but here the focus is more on logical and ontological structure than on political psychology.
  • Gorgias: Both dialogues address sophistry and rhetoric, but Gorgias emphasizes ethical critique and political consequences, whereas Sophist concentrates on definition and ontology.
  • Philebus and Timaeus: Later discussions of kinds, mixture, and order have sometimes been read in light of the interweaving of kinds in Sophist.

Scholars differ on whether Sophist marks a turn in Plato’s philosophy (toward more formal ontology and logic) or a development continuous with themes already present in earlier works.

17. Legacy and Historical Significance

Influence in Antiquity

In later Platonism, especially Neoplatonism, Sophist was a key text for:

  • articulating a hierarchy of being and non-being,
  • interpreting the five greatest kinds as high-level metaphysical principles,
  • integrating Plato’s ontology with subsequent developments in logic and theology.

Commentators such as Proclus drew extensively on Sophist to reconcile Plato with Parmenides and to systematize Platonic doctrine.

The dialogue also informed Aristotle and later Peripatetics, particularly on issues of predication, categories, and contradiction, though Aristotle rarely names the work explicitly.

Contribution to Logic and Philosophy of Language

Many historians of philosophy credit Sophist with pioneering ideas in:

  • the analysis of propositional structure (name–verb combinations),
  • the distinction between true and false statements,
  • the link between ontological categories and semantic possibilities.

These themes anticipate, and arguably influence, later developments in Stoic logic and Aristotelian theories of statement and contradiction.

Conceptions of Sophistry and Intellectual Profession

The dialogue has significantly shaped the long-lasting stereotype of the sophist as:

  • a professional purveyor of apparent wisdom,
  • an expert in eristic and rhetorical manipulation,
  • someone who blurs the line between knowledge and persuasion.

This image has influenced attitudes toward rhetoric, pedagogy, and intellectual labor for pay throughout antiquity and into modern discussions of “public intellectuals,” lawyers, and propagandists.

Modern Reception

In modern scholarship, Sophist has become central to debates about:

  • Plato’s late metaphysics and whether he endorses a robust ontology of Forms and kinds,
  • the origins of analytic philosophy, with figures like G. E. L. Owen and Michael Frede highlighting its importance for logic and semantics,
  • the relationship between philosophy and sophistry, particularly in contexts concerned with ideology, discourse, and power.

Contemporary philosophers and classicists continue to revisit Sophist when exploring topics such as negation, fiction, false belief, and the nature of philosophical method. Its blend of technical argumentation with enduring questions about truth, appearance, and expertise ensures its ongoing significance in both historical and systematic studies of philosophy.

Study Guide

advanced

Sophist combines a relatively sparse dramatic frame with dense argument about ontology, logic, and philosophical method. Students must track technical distinctions (e.g., five greatest kinds, non-being as difference) and a complex structure where the discussion of sophistry is interrupted by a long metaphysical detour. It is best approached after some exposure to Plato and basic logic.

Key Concepts to Master

Sophist (σοφιστής, sophistēs)

A paid expert in argument and instruction who produces images of wisdom and refutations, located by the Eleatic Stranger as a kind of acquisitive, mimetic technē that trades in appearances, opinion, and eristic victory rather than genuine knowledge.

Diairesis (division, διαίρεσις)

A method of philosophical analysis that defines a thing by repeatedly dividing a broad genus into more specific species, aiming to ‘cut at the joints’ of nature and locate the essence of kinds such as the angler or the sophist.

Being and Non-Being (τὸ ὄν / τὸ μὴ ὄν)

Being (to on) is what is or has real existence; non-being (to mē on) is reinterpreted not as sheer nothing but as ‘otherness’—the way something can be other than what is, in some respect—thus grounding meaningful negation and talk of what is not.

Five Greatest Kinds (μέγιστα γένη)

The most comprehensive kinds or categories—Being, Motion, Rest, Sameness, Difference—that pervade reality and can ‘interweave’ in structured ways, allowing complex predications like ‘motion is’ or ‘rest is not motion.’

Difference / Otherness (heterotēs, ἑτερότης)

One of the five greatest kinds, responsible for the way things are ‘other than’ one another; when Difference is opposed to Being, it underwrites ‘non-being’ in the qualified sense of being-other-than this or that.

Logos (λόγος) and its structure (name and verb)

Logos is articulated speech or statement, arising when at least one name (subject-like term) is properly combined with at least one verb (predicate-like term), yielding something that can be true or false about beings.

Mimesis and Image-Making (μίμησις, εἰδωλοποιική)

Mimesis is imitation or representation; image-making (eidōlopoiikē) is the technē of producing likenesses and appearances, including deceptive ones, in media such as speech. The sophist is classified as a practitioner of verbal image-making that yields only semblances of wisdom.

Dialectic versus Eristic (διαλεκτική vs. ἐριστική)

Dialectic is the truth-seeking art of investigating how kinds relate and divide, attentive to which combinations make sense; eristic is contentious argument aiming at victory and refutation, often indifferent to truth and reliant on verbal tricks.

Discussion Questions
Q1

Why does the Eleatic Stranger insist on using the method of division to define the sophist? In what ways does this method succeed or fail in capturing the complexity of actual sophists as social figures?

Q2

How does the attempt to understand sophistic deception force the dialogue to confront the Eleatic problem of non-being? Could Plato have given an account of sophistry without rethinking what ‘is not’ means?

Q3

What philosophical work is done by introducing the five greatest kinds (Being, Motion, Rest, Sameness, Difference)? Do they primarily function as metaphysical principles, logical categories, or both?

Q4

In what sense is non-being identified with ‘difference’ in Sophist, and how does this help to rehabilitate negation and falsehood against Eleatic objections?

Q5

How does the analysis of logos as a combination of name and verb explain the possibility of false statements? Are there kinds of falsehood that this account struggles to capture?

Q6

In what ways does the Eleatic Stranger’s style of philosophy differ from Socrates’ usual elenchus, and what might this signal about Plato’s own development?

Q7

To what extent does Sophist succeed in drawing a clear boundary between philosophy and sophistry? Is some degree of ‘sophistic’ appearance inevitable for the philosopher?

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BibTeX
@online{philopedia_sophist,
  title = {sophist},
  author = {Philopedia},
  year = {2025},
  url = {https://philopedia.com/works/sophist/},
  urldate = {December 11, 2025}
}