The Euthyphro
The Socratic method, the elenchus, and the divine command dilemma
Read this page alongside or after the dialogue. It unpacks the method, the argument, and the central philosophical problem the Euthyphro raises.
Socrates is about to go into court to face the preliminary hearing on charges of impiety and corrupting the youth. On the steps, he runs into Euthyphro, a religious expert who is there to prosecute his own father for impiety — his father allowed a farmhand to die after the man killed a slave. Euthyphro is confident his action is the pious thing to do, despite his family’s objections.
Socrates is immediately interested. He himself is facing a charge of impiety, and here is a man who claims to know what piety is. Socrates asks him to explain it, so that Socrates might use the definition in his own defense. The irony is thick: Euthyphro, the expert, will turn out to be no more certain about piety than anyone else.
Why this dialogue, why first
The Euthyphro introduces the Socratic method in its purest form and raises the central ethical question of the entire unit: does morality depend on divine authority, or does it have an independent foundation? This question will recur, in different forms, in every unit of the course.
Socrates never simply lectures. His method — the elenchus (from the Greek word for refutation or cross-examination) — works like this: an interlocutor proposes a definition or claims to know something. Socrates asks questions. Through a series of apparently simple clarifying questions, he draws out further commitments from the interlocutor. Eventually he shows that those commitments are inconsistent with each other — and the definition collapses.
This is not just rhetorical cleverness. It is a rigorous argumentative method. Each step of the elenchus is an argument — a set of premises leading to a conclusion. Socrates’ skill lies in getting his interlocutors to agree to the premises before they see where they lead.
Logic in action: argument structure
Every exchange in the Euthyphro has the structure of an argument: Socrates states premises, Euthyphro agrees to them, and Socrates draws a conclusion that undermines Euthyphro’s position. As you read, try to identify the premises and conclusions in each exchange. If you need a refresher on what makes an argument valid, see the Logic Reference page in Unit 1.
What the elenchus is not
The elenchus might look like Socrates simply making people feel stupid. It is not. Socrates’ goal is not to win arguments but to advance inquiry. When he shows that a definition fails, he is not saying the question has no answer. He is clearing away inadequate answers so that better ones can be found. This is why the dialogues typically end without a firm conclusion — not because nothing has been learned, but because inquiry is ongoing.
The elenchus also requires something of the interlocutor: genuine engagement. Socrates cannot refute someone who simply refuses to commit to any position. The method works only with people willing to say what they actually think — and willing to follow the argument where it leads.
Logic in action: reductio ad absurdum
The elenchus often works by reductio ad absurdum — Latin for “reduction to the absurd.” Socrates accepts his interlocutor’s premise for the sake of argument, shows that it leads logically to an absurd or contradictory conclusion, and then infers that the original premise must be false. This is a legitimate and powerful form of argument. It is used throughout philosophy, mathematics, and science. Watch for it in the Euthyphro dilemma below.
After a few failed definitions, Euthyphro proposes that piety is what all the gods love, and impiety is what they all hate. Socrates accepts this as a more promising definition — then springs a trap.
He asks a deceptively simple question: Is something pious because the gods love it, or do the gods love it because it is pious? This is the Euthyphro dilemma, and it is still discussed in philosophy of religion today.
The two horns
Horn 1: Something is pious because the gods love it. This means piety is entirely up to the gods — if the gods decided to love cruelty, cruelty would be pious. Morality becomes arbitrary, a matter of whoever happens to be in command. Socrates (and Euthyphro) find this unacceptable.
Horn 2: The gods love something because it is pious. This means piety exists independently of the gods — there is a standard of rightness that even the gods recognize and respond to. But then the gods’ loving something tells us nothing about what piety is. It tells us only that the gods are good judges. Euthyphro’s definition has failed to give us an explanation of piety; it has merely noted that pious things have a certain property.
The argument, reconstructed
This argument is valid. Euthyphro accepts P3 — which leaves him stuck with the conclusion. The interesting question is whether P3 is true. That is the question the dilemma forces on anyone who grounds morality in divine authority.
Divine Command Theory
Divine Command Theory is the view that moral rightness just is whatever God (or the gods) command. It is an appealing view for religious believers: it grounds morality in the ultimate authority. The Euthyphro dilemma is its sharpest challenge. If the first horn is right, morality is arbitrary. If the second horn is right, morality is independent of God, and God’s commands are reliable guides to morality but not the source of it.
Most contemporary philosophers of religion who want to defend Divine Command Theory work on the second horn — arguing that God’s nature is necessarily good, so the worry about arbitrariness is misplaced. Whether this response succeeds is one of the central questions in philosophy of religion. It is also, in a different register, the same question that will confront us in Unit 4 when Hegel argues that Reason is immanent in History — and in Unit 5 when Marx grounds morality in material conditions rather than divine command.
Logic in action: begging the question
Euthyphro’s first definition — that piety is what he is doing right now (prosecuting the wrongdoer) — is a classic example of begging the question: he assumes piety in his example rather than defining it. Socrates wants to know what makes an act pious, and Euthyphro responds by pointing to a specific act he believes is pious. The definition is circular: it relies on the very concept it is supposed to explain. For a full account of this fallacy, see the Logic Reference page in Unit 1.
The Euthyphro ends without a definition of piety. Euthyphro makes his excuses and leaves. Socrates is no better equipped to defend himself at trial than when the dialogue began. This might seem like failure.
But consider what has been established. Piety cannot be defined by example. Piety cannot be defined as what the gods love, because that definition either makes piety arbitrary or fails to explain what piety actually is. And Divine Command Theory — one of the most intuitive positions in religious ethics — faces a dilemma it has never fully escaped.
This is how philosophy makes progress: not always by finding answers, but by exposing the inadequacy of bad answers and clarifying what a good answer would have to look like. Socrates would not have us believe our questions have no correct answers. He is genuinely seeking the truth of the matter. But he would impress on us that inquiry is hard and that untested claims to knowledge amount to little more than vanity.
The thread across the course
The question the Euthyphro raises — whether morality has an independent foundation — does not go away. Descartes will make God the guarantor of reason. Hume will ground morality in sentiment rather than reason or divine command. Hegel will ground it in History. Marx in material conditions. Sartre will insist there is no external standard at all. Each is, in a sense, offering an answer to the Euthyphro dilemma.
These questions are to guide your reading and help you prepare for discussion. You do not submit answers to them — but you should be able to answer them before working on your reflection.
For your reflection
The Unit 1 reflection prompt asks you to engage with all three dialogues. The questions above are preparation. The discussion question itself will require you to take and defend a position, not just summarize the text.