Plato's Meno

About the work

Meno is an early-to-middle dialogue written by the 4th-century BCE Greek philosopher Plato, with his teacher Socrates as its central speaker. It opens with the young aristocrat Meno's question — can virtue (aretē) be taught? — and turns it into a deeper inquiry into what it really means to know and to learn. Dialogos draws on the questioning, examining spirit Socrates shows in this dialogue to guide its conversations.

Historical background

Meno is an early-to-middle dialogue written in Greek by Plato in early-4th-century BCE Athens, with his teacher Socrates as its central speaker. When Meno, a young aristocrat from Thessaly, asks whether virtue (aretē) can be taught, Socrates replies that he does not even know what virtue is, and so turns the question on its head. Though short, the dialogue contains three pillars of epistemology — Meno's paradox, the theory of recollection (anamnēsis), and the slave-boy geometry demonstration — making it a turning point in how the West asks what it means to know and to learn.

Meno's paradox

Confident that he knows his answers, Meno is brought to a standstill by Socrates' repeated questioning and compares him to a torpedo fish (a sting ray) that numbs whoever touches it. Meno then raises his famous paradox: a person cannot inquire into what he already knows, since there is nothing to seek, nor into what he does not know, since he would not know what to look for — so inquiry seems impossible. Socrates replies that the one who numbs others is himself numb too, and shows that this very impasse (aporia) is where genuine inquiry begins (80a–b).

Key quotations

Socrates, you are like the flat torpedo fish that numbs whoever comes near it — talk with you and my mind and tongue go numb.
Plato's Meno · 80a–b
The moment a fluent problem-solver hits a question and stalls — being stuck isn't incompetence, it's the sign that real thinking just started.
If I numb others, it is not because I am clear, but because I am more perplexed than anyone myself.
Plato's Meno · 80c–d
Inquiry opens when even the teacher admits 'I don't know either' — honest not-knowing beats a confident face.
You cannot inquire into what you know, for there is nothing to seek; nor into what you don't, for you would not know what to look for.
Plato's Meno · 80e
The exact logic of feeling stuck under modern stress — Meno's paradox isn't 'so stop asking,' it's the starting line for 'ask anyway.'
Learning is not packing in something new; it is the soul recollecting knowledge it always had.
Plato's Meno · 81d
Recollection — the answer may not be outside information but a thread inside you that a good question pulls loose.

Key concepts

aretē (virtue / excellence): The excellence by which a person or thing performs its proper function best. It is the very thing Meno asks whether one can teach, and the term Socrates insists on defining first.
aporia (impasse): The state of being stuck before a question, at a loss for an answer. For Socrates this is not failure but the place where genuine inquiry begins.
anamnēsis (recollection): The doctrine that learning is the soul recalling knowledge it already possessed. It is illustrated when an untaught slave boy solves a geometry problem through questioning alone.
elenchos (refutation): Socrates' method of questioning an answer until its contradictions surface, leading both parties into a shared impasse — shaking what one assumed one knew so it can be asked anew.

How to apply it today

One thing to try today: when you feel stuck, don't immediately search for the answer or copy down a fix. Use Meno's paradox in reverse. On paper, write "what I already know" and "what I have no idea about," then aim a single question at the gray zone between them — the thing you vaguely sense but can't yet put into words.

As the slave boy showed, a good question draws out a thread inside you before any outside answer arrives. Under modern stress, what an impasse calls for isn't more information but one clear pause to ask: what am I actually trying to find out?

Modern translations

A neutral, ad-free guide to standard modern editions worth starting with.

Plato: Five Dialogues — Euthyphro, Apology, Crito, Meno, Phaedo (Hackett Classics) G. M. A. Grube, revised by John M. Cooper・Hackett Publishing Company (Hackett Classics)
The standard classroom edition in North America. Grube's accurate, readable translation, revised by Cooper for the one-volume Plato: Complete Works, gathers the Meno alongside the four dialogues on Socrates' trial and death. A free public-domain translation by Benjamin Jowett is linked below.
Meno and Other Dialogues — Charmides, Laches, Lysis, Meno (Oxford World's Classics) Robin Waterfield・Oxford University Press (Oxford World's Classics)
Waterfield's clear modern-English translation pairs the Meno with three early dialogues on individual virtues, with an accessible introduction and notes aimed at students and general readers. A good choice for studying the Meno within Plato's wider inquiry into virtue.
Protagoras and Meno (Penguin Classics) Adam Beresford (introduction by Lesley Brown)・Penguin Books (Penguin Classics)
A lively, idiomatic contemporary rendering that places the Meno next to the Protagoras, the two dialogues most concerned with whether virtue can be taught. Beresford's natural English makes it an approachable entry point for first-time readers.

How Dialogos uses this source

Dialogos paraphrases the ideas of out-of-copyright source texts into modern language; it does not reproduce the wording of any copyrighted modern translation. A citation (for example, 80a–b) points to the section of the dialogue (the Stephanus number) where the idea appears.

Public-domain text

The text below is Benjamin Jowett's English translation (Jowett, 1817–1893), which is in the public domain more than a century after the translator's death.

These links lead to external sites whose content PiFl Labs does not control.

Frequently asked questions

What is Plato's Meno about?

It is a dialogue that begins with the question "Can virtue be taught?" and uses it to examine the nature of knowledge and learning. Its most famous moments are Meno's paradox (you cannot inquire into what you already know, nor into what you don't know) and Socrates' reply, the theory of recollection — that learning is the soul recalling knowledge it already possessed.

Who wrote the Meno?

The author is the ancient Greek philosopher Plato (c. 428–348 BCE). The main speaker in the dialogue is his teacher Socrates, through whom Plato voices his own philosophy.

What is Meno's paradox?

It is an argument that inquiry is impossible: you need not seek what you already know, and you cannot seek what you don't know because you wouldn't recognize it (80e). Socrates does not deny this impasse (aporia); instead he treats it as the starting point of real inquiry and answers it with the theory of recollection.

What does the slave-boy story show?

Socrates poses an untaught slave boy a problem: double the area of a square (82b–85b). The boy first answers "double the side," gets it wrong, reaches an impasse, and then, through questions alone, discovers that the diagonal is the answer. Arriving at truth without being told illustrates the theory of recollection.

Does the Meno conclude that virtue can be taught?

It reaches no firm conclusion. Since no actual teachers of virtue can be found, Socrates tentatively says virtue comes not by teaching, practice, or nature, but by a kind of divine dispensation (theia moira). He ends open-endedly, insisting we must first re-ask what virtue itself is.

What are the famous quotes or key lines in the Meno?

The best known is Meno comparing Socrates to a "torpedo fish that numbs whoever touches it" (80a–b), and Socrates' reply that he numbs others only because he is more perplexed than anyone himself (80c–d). "All learning is recollection" (81d) is also widely quoted.

What background helps before reading the Meno?

Meno is a wealthy young aristocrat from Thessaly and a student of the sophist Gorgias, which is why he confidently rattles off definitions of virtue at the start. Reading with that confidence in mind — and watching it collapse under Socrates' questioning — makes the "torpedo fish" image land more sharply.

Can I read the Meno for free?

Yes. Benjamin Jowett's English translation is out of copyright and in the public domain. You can read the full text for free at the Wikisource, Project Gutenberg, and MIT Internet Classics Archive links below.