The Socratic Method

Two people are in conversation. The first holds an opinion — about justice, about courage, about what it is to love God. The second asks a question. Not to debate, not to catch the first out, not to win — but to see whether the opinion survives being looked at. The classical tradition names the second person Socratic, and it has been refining what that second person is doing for twenty-four centuries. This article reports what the Socratic method is in the sources — not "five steps" and not a debating trick, but a discipline of cross-examining one's own unreflected opinions — and how the Christian Doctors received that discipline, grounded it theologically in Christ as the interior teacher, and institutionalized it as the form in which Aquinas's Summa Theologiae is written.

A warning to the reader looking for debate technique: this is not the article. The Socratic method has nothing to do with being clever in argument. The reader who wants fallacies and rhetoric wants a different piece; the reader who wants to see what it is to ask before one asserts is in the right place.

I. Elenchus, not debate

The Greek word is elenchos (ἔλεγχος) — cross-examination, testing, refutation. In Plato's early dialogues it names precisely what Socrates does: he asks his interlocutor to state a position, then tests that position by further questions, until either the position survives testing or it collapses. The method has three formal features the tradition has never let go of.

First, it proceeds by question, not by assertion. The Socratic questioner does not lay out a doctrine and defend it. He asks the other to lay out theirs — and then asks what follows from what they have said.

Second, its starting point is honesty about ignorance. In the Apology, after cross-examining a supposedly wise man, Socrates reflects: I am likely to be wiser than he to this small extent, that what I do not know, I do not think I know.[1] This is Socratic ignorance: not stupidity, and not false modesty, but the precise cognitive posture that refuses to claim a knowledge one has not actually reached. It is the method's cornerstone, because every elenchus begins from it.

Third, it aims at definition. What is piety? What is courage? What is justice? The method's questions are always of that form: what is F? — and then, what follows if F is so? When the definition is not reached, the proper outcome is aporia (ἀπορία) — confessed perplexity — not invented resolution. Plato closes the Euthyphro in aporia. Socrates's interlocutor, unable to answer, walks away:[2] Plato reports this without triumph. Elenchus has no winners; it has only honest outcomes.

This — and only this — is the Socratic method. It is not debate, because debate has winners; elenchus has either a surviving definition or an admitted aporia. It is not rhetoric, because rhetoric aims to persuade; elenchus aims at the truth of the matter and cares nothing for whether the interlocutor can be made to feel they have been bested. The Apology states the work in a single line the tradition never lets go of: the unexamined life is not worth living for a man.[3]

The Catholic reader should feel, immediately, how close this is to something the Church has long insisted on: that a well-formed conscience requires sincere inquiry into the truth, not inherited opinion held at arm's length. The Catechism is explicit: the education of the conscience is a lifelong task.[4] Socratic self-examination is not the same thing as conscience formation — but the structural disposition is the same: a refusal to believe what one has not tested, and a willingness to be undone by the testing.

II. Three dialogues: the method in action

Plato reports the method in three modes. Destructive: Euthyphro. Constructive: Meno. Against an aggressive interlocutor: Republic I. Each is worth a pass.

Euthyphro (destructive). A young man named Euthyphro is prosecuting his own father for murder. He claims to know this is pious. Socrates asks for a definition: not examples, but what piety is. Euthyphro tries: "what the gods love." Socrates then asks the question the history of philosophy never got over:[5] Either horn is devastating: if the first, then the gods' love does not make the thing holy — holiness is prior; if the second, then holiness is whatever the gods happen to love, which is not a definition at all. Euthyphro cannot answer. The dialogue ends in aporia. The method has not produced a definition of piety — but it has produced the more valuable cognitive good of exposing that neither party had one to begin with.

Meno (constructive). Meno asks whether virtue can be taught. Socrates first raises what the tradition will call the paradox of inquiry: how can one seek after what one does not already know — since if one does not know it, one will not recognize it when one finds it? Socrates answers not with a theory but with a demonstration. He calls over a slave-boy, asks him a sequence of questions about a geometric figure, and — by questioning alone, never telling — leads the boy to the solution of doubling the area of a square. At the key moment Socrates reminds Meno: I am only asking him.[6] The demonstration grounds Plato's pedagogical claim: the teacher does not put knowledge into the pupil; the teacher elicits what the pupil, qua rational, can reach.

Plato explains the elicitation by his doctrine of anamnesis (recollection) — the soul has known the truths before embodiment and is remembering them. The Christian tradition will reject that explanation (the soul does not pre-exist its body) while preserving the pedagogical insight. That reception is §V.

Republic I (against aggression). Thrasymachus, a professional rhetorician, interrupts the conversation impatiently and asserts that justice is nothing other than the advantage of the stronger. Socrates does not counter-assert. He tests. Over the next twenty pages he asks Thrasymachus a series of questions that expose the internal tensions in the definition — what if the stronger is mistaken about what advantages them? — until the definition collapses under its own terms. Then, at the close of Book I, Socrates does something students of the method should notice: he confesses that he himself has not reached a definition of justice either.[7] The remaining nine books of the Republic are Plato's answer — and that answer is only possible because Book I was willing to end in honest aporia.

Three dialogues, three modes: aporia, elicitation, exposure of false confidence. In none of them does Socrates assert prematurely. That refusal — not the cleverness, not the questions as such, but the refusal to assert without having earned the assertion — is the method's ground.

III. Aristotle: the method as an art

Plato dies. His student Aristotle writes a treatise — the Topics — on how to reason dialectically. In the mature ethics, Aristotle distinguishes the Socratic-dialectical use of reason from epistēmē (scientific demonstration from premises known with certainty) and situates it within the economy of the intellectual virtues. The Nicomachean Ethics lists five: epistēmē, technē (art), phronēsis (practical wisdom), sophia (philosophical wisdom), and nous (the intuitive grasp of first principles).[8]

Where Plato's Socrates uses the method almost entirely to test, Aristotle gives it constructive employment: the art of reasoning from endoxa — opinions held by all, or by most, or by the wise — toward better conclusions. Dialectic cannot deliver scientific demonstration, because its premises are probable rather than certain. But it does real intellectual work, and it is the proper instrument by which phronēsis is formed and exercised. The upshot is not small: the tradition now holds, formally, that how one reasons matters as much as what one concludes.

Aquinas receives all of this. In the Prima Secundae he takes Aristotle's phronēsis into Latin as prudentia and argues that it is a virtue necessary to man precisely because human action concerns contingent particulars, which the universal principles of reason cannot determine without deliberation:[9] A reasoner formed in dialectic reasons from what they genuinely hold, tests it against objection, and arrives at conclusions they can own. That is formation, not information — and it is, in Aquinas's hands, continuous with Aristotle's account of the intellectual virtues.

IV. Scripture: Christ teaches by question

Between Athens and Jerusalem there is a continuity the tradition notices but refuses to flatten. The article does not claim Jesus was "Socratic" — that would be historically anachronistic and theologically insufficient. But the Gospels report Jesus teaching by question with a frequency no reader of Christian pedagogy can ignore. Four loci, in increasing Christological weight.

The Fourth Gospel opens with a question. The first words Jesus speaks in John's Gospel are not a teaching and not a command:[10] John reports this as the evangelical starting point — Christ does not begin by telling what he is, but by asking what the disciples are looking for.

The standing invitation of the Sermon. Christ's teaching on prayer — and by extension on the whole disposition of the seeker — names the act of asking as prior to receiving:[11] The logic is the Socratic pedagogical logic, hardened into a commandment: the gift is not withheld from the one who asks; it is conditional on the asking.

The lawyer and the Samaritan. A lawyer asks Jesus how to inherit eternal life. Jesus returns the question: What is written in the law? how readest thou? The lawyer answers rightly — love of God, love of neighbor. Jesus: Do this, and thou shalt live. The lawyer, wishing to justify himself, asks who is my neighbour? The parable of the Good Samaritan follows — and at its end Jesus does not pronounce the meaning. He returns another question:[12] The lawyer answers; Jesus sends him away to do likewise. Every pivot in the exchange is a question — and every answer is one the lawyer had to give himself.

The Christological hinge at Caesarea Philippi. Jesus does not tell the disciples who he is. He asks:[13] Peter answers: Thou art Christ, the Son of the living God. The confession is drawn out. The method elicits precisely what Plato named in the Meno and what Aquinas will systematize at ST I q.117 a.1 — the truth is not imposed; it is seen, by one who is rightly questioned. That the one who now is the Truth does not impose it but elicits it is the Christological grounding of the whole tradition of pedagogy-by-question.

The Patristic inheritance picks this up. Augustine at the Confessions does not begin by stating who God is; he asks himself what he loves when he loves his God:[14] Christian contemplation inherits the Socratic structure of interrogating one's own experience. What is new is that, for Augustine, the One who answers is personal.

V. Augustine and Aquinas: Christ the interior teacher

The center of gravity of the Christian reception is a pair of texts. Augustine's De Magistro (off-corpus for this edition; cited through Aquinas's reception below) stages a dialogue between Augustine and his son Adeodatus. It asks a startling question: can one human teach another? Augustine's paradoxical answer: strictly speaking, no. Words from the teacher's mouth do not cause understanding in the pupil; they point to realities, and only when the pupil's intellect turns to those realities and sees them under the interior light of Christ does the pupil come to know.

Aquinas engages Augustine's argument directly at Summa Theologiae I q.117 a.1 — whether one human can teach another — and gives a more fully articulated answer that preserves Augustine's insight while correcting what Aquinas thought Augustine had understated. The human teacher is a real cause of the pupil's knowledge — but an instrumental cause. The principal cause remains God, from whom the pupil has both the agent intellect and the intelligibility of the things to be known. Aquinas puts it this way:[15]

The consequence for the Socratic method is enormous. The method's refusal to tell, and its insistence on asking, is now theologically grounded. The human teacher cannot transmit truth by assertion; truth reaches the learner only through the learner's own intellect actualizing on the intelligible. Questioning is not one pedagogical style among several. It is pedagogy conformed to what knowing is. Aquinas is explicit that this is Augustine's own point:[16]

Aquinas's correction of Plato, in turn, is equally important. Plato had explained the Meno's slave-boy by anamnesis — recollection from the soul's pre-existence. Aquinas rejects the pre-existence of the soul, and with it the explanation, at ST I q.84 a.3:[17] But he keeps Plato's pedagogical insight intact, regrounded on a sounder metaphysics. The pupil does not recollect; the pupil abstracts, under the light of the agent intellect which God gives, what is present in the sensible world. Platonic pedagogy, detached from Platonic metaphysics, survives.

Aquinas is not only a theorist of the method. He is its consummate practitioner. The Summa Theologiae is written as more than five hundred questions, each broken into articles, each article staged as a disputation: a sequence of objections, a sed contra (an authoritative counter), the master's respondeo, and a reply to each objection in turn. The form is chosen deliberately. Aquinas says so in the Prologue:[18] The form is pedagogical, not decorative. It is the Socratic method institutionalized — and where Plato's Socrates had to draw objections out of the interlocutor in live conversation, Aquinas has anticipated them and answered each in turn on the page.

The theological character of sacred doctrine itself supports this form. Aquinas at ST I q.1 a.8 asks whether sacred doctrine is argumentative. His answer: it is — not demonstratively from premises reason discovers unaided, but from the articles of faith as premises, with the full range of dialectical argument at its service, including reasoning from probable authorities.[19] Dialectic, in other words, belongs to the highest science — precisely because the highest science is taught to learners who must come to see what is taught, and cannot merely be told it.

VI. The disputatio and the living tradition

The method was institutionalized in the medieval university. The disputatio — a formal oral exercise in which a master posed a question, students argued both sides, the master pronounced a determinatio — was the capstone exercise of thirteenth-century theological training at Paris. Aquinas, as regent master, presided over scheduled disputationes ordinariae and, twice yearly in Advent and Lent, disputationes quodlibetales: disputations on any question the audience might put. The Summa Theologiae is the written residue of that oral form.

What the method produced in the lived tradition was a set of formed habits, not merely a literary genre.

Humility. The master who must defend every article of his teaching against every objection does not teach from a height; he teaches from having submitted his position to cross-examination. The authority of the Summa is not that Aquinas pronounced; it is that Aquinas answered, in order, the best objections anyone had raised.

Clarity. The objection-and-response form forces the teacher to name exactly what his position does not say, as well as what it does. A reader who reads an article of the Summa in full — objections, sed contra, respondeo, replies — knows not only Aquinas's view but the precise shape of the disagreements that would oppose it.

Charity toward opponents. The sed contra is the steel-man built into the form — the opposing view is stated in its strongest version before it can be answered. This is the tradition's discipline, not a modern rhetorical nicety. Aquinas cannot answer an objection he has not stated fairly.

Docility. Aquinas ranks the readiness to be taught among the quasi-integral parts of prudence. The prudent person is not the one who already knows; he is the one in whom a formed readiness to learn from instruction has become second nature:[20] Docility is the Socratic disposition named as a Christian virtue.

The living inheritance is broader than the university. The Catechism itself proceeds from the conviction that faith is a response — which presupposes a question put to the soul:[21] Catechesis articulates what the soul's own constitution has already asked. The Church's traditional formula, picked up from Augustine and Anselm, is Latin-compact: fides quaerens intellectum — faith seeking understanding. The Catechism states it plainly:[22]

Two further inheritances deserve mention. The practice of examination of conscience, made concrete in every preparation for sacramental confession, is Socratic self-examination Christianized: the penitent asks themselves precisely the questions they have been avoiding. And the Catechism's treatment of conscience formation holds that a well-formed conscience is not an inherited sentiment but the fruit of disciplined inquiry:[23] The obligation is cognitive, not merely moral — a duty to inquire, on pain of failing one's own dignity. And the conscience so formed uses reason's instruments:[24]

VII. What the method is not

A closing disciplinary paragraph, because the method has a popular-culture life that distorts it. Three confusions, named and distinguished.

It is not debate. Debate has winners; elenchus has no winners. A conversation in which one participant is trying to win is a rhetorical exercise wearing the method's clothes. The Socratic questioner is the one most willing to be undone — because his own position is what is most fully on the table.

It is not "just asking questions." Questions without direction toward definition are distraction. The method's questions are always of the form what is F? why does F obtain? does F depend on G? — ordered toward reaching or refusing a claim.

It is not Cartesian doubt. Descartes's method of universal doubt is epistemologically distinct: it doubts everything that can be doubted, to find an Archimedean point. The Socratic method doubts one's unreflected opinions about a specific F, and does so in the confidence that the truth about F is there to be reached. Descartes begins from the isolated ego; Socrates begins in conversation. The reader who has mixed the two will have mixed a discipline of the mind with a philosophy of the mind, which is a different error.

What the method is, positively, the reader can take into their own reading. When you meet a claim in Scripture, in the Catechism, in a Father, in Aquinas — read it, and then ask what the best objection would be. The tradition has anticipated most; the Summa is structured around exactly this habit. A reader who forms the habit is, in the tradition's own word, being schooled — from scholē, "leisure for the things of the mind." That is what the classical tradition held leisure was for.

VIII. What to read next

For the metaphysics that underwrites the method's conviction that the real is intelligible, see The Transcendentals. For what "truth" means when Aquinas says the interior light of intellect is the principal cause of knowledge, see What is truth? on this site. For how the good relates to what every appetite — including the intellect's appetite for the truth — is finally seeking, see What is the good? Two further pieces are forthcoming: Substance and Accident (forthcoming), which gives the metaphysical vocabulary in which the what-is-F? questions Plato asks actually have answers, and The Four Causes (forthcoming), on how the tradition distinguishes the kinds of explanation the method is hunting for.

The closing line belongs to Plato, because in this matter he speaks for the tradition that received him: the unexamined life is not worth living for a man. The Christian tradition, receiving the line, adds a second clause: and the life that is examined has, at its interior, Christ the Teacher — who does not tell, but asks; who does not impose, but elicits; and who, on the road to Caesarea Philippi, is willing to draw out of a fisherman the confession that will become the Church.

Sources cited

1. T2 Plato, Apology 21d (Jowett translation).
2. T2 Plato, Euthyphro 15e (Jowett).
3. T2 Plato, Apology 38a (Jowett).
4. T0 Catechism of the Catholic Church §1784 (Vatican 1997).
5. T2 Plato, Euthyphro 10a — the "Euthyphro dilemma" (Jowett).
6. T2 Plato, Meno 82e — the slave-boy demonstration (Jowett).
7. T2 Plato, Republic I 354c — Socrates's closing aporia (Jowett).
8. T2 Aristotle, Nicomachean Ethics VI.3 (1139b15–17), Bekker.
9. T1 Thomas Aquinas, Summa Theologiae I-II q.57 a.5 co. (Leonine edition).
10. T0 Gospel of John 1:38 (Douay-Rheims 1899).
11. T0 Gospel of Matthew 7:7 (Douay-Rheims 1899).
12. T0 Gospel of Luke 10:36–37 (Douay-Rheims 1899).
13. T0 Gospel of Matthew 16:13–16 (Douay-Rheims 1899).
14. T1 Augustine, Confessions X.6.8 (CCEL, NPNF1-01).
15. T1 Thomas Aquinas, Summa Theologiae I q.117 a.1 co. (Leonine edition).
16. T1 Thomas Aquinas, Summa Theologiae I q.117 a.1 ad 1 (Leonine edition).
17. T1 Thomas Aquinas, Summa Theologiae I q.84 a.3 co. (Leonine edition).
18. T1 Thomas Aquinas, Summa Theologiae Prologue (Leonine edition).
19. T1 Thomas Aquinas, Summa Theologiae I q.1 a.8 ad 2 (Leonine edition).
20. T1 Thomas Aquinas, Summa Theologiae II-II q.49 a.3 co. (Leonine edition).
21. T0 Catechism of the Catholic Church §27 (Vatican 1997).
22. T0 Catechism of the Catholic Church §158 (Vatican 1997).
23. T0 Catechism of the Catholic Church §2467 (Vatican 1997).
24. T0 Catechism of the Catholic Church §1785 (Vatican 1997).