Lecture Supplement on Plato’s Euthyphro
1.
Euthyphro Introduction: 
While it is often claimed that this dialogue is set on the 
steps of the court building as Euthyphro and Socrates are going into their 
respective trials, in their “Introduction” to
The Trial and Execution of Socrates: 
Sources and Controversies, Thomas Brickhouse and Nicholas Smith maintain 
that: 
…the
Euthyphro depicts a conversation 
Socrates has as he waits at the office of the King archon to be given his court 
date….[1] 
This dialogue provides us with a picture of the Socratic 
process of elenchus (refutation). 
A view about piety is advanced 
by Euthyphro, and Socrates subjects it to a critical analysis. 
Socrates, of course, is willing to accept only justified, reasoned 
claims.  But Euthyphro advances a 
claim to knowledge which he justifies due to his special position (as a 
“priest”).  He claims to know (what 
piety is) and Socrates shows that he does not know this. 
Think of the
Apology—Socrates is testing to see if 
Euthyphro knows....
If Euthyphro doesn’t know, how 
will Socrates show him that he doesn’t? 
Stanley Cavell points out that: 
Socrates gets his antagonists to 
withdraw their definitions not because they do not know what their words mean, 
but because they do know what they (their words) mean, and therefore know that 
Socrates has led them into paradox.[2] 
Here we have the problem that Plato’s
Meno is centrally concerned with—how 
is learning possible?  
    
The Euthyphro comes to
no positive conclusion as to the 
nature of piety.  Indeed, it does 
not even reach the second of the three stages of Plato’s dialectical process (aporia
[perplexity, negativity, or inconclusiveness]). 
As the dialogue ends, it is clear that Euthyphro is
annoyed with Socrates, but
still believes he possesses a special 
knowledge as regards piety.  Why 
doesn’t the dialogue go beyond the first stage? 
Euthyphro is not a philosopher! 
[The name is used to indicate a character trait—not a profession]. 
Here, then, is a valuable result of the dialogue—it points out the fact 
that the process of Socratic dialectic requires
a sincere desire for truth. 
Steven Nathanson maintains that we can see something central about 
Plato’s commitment to the ideal of rationality in this dialogue: 
there are many questions that 
could be raised about the manner in which Socrates questions Euthyphro and about 
the criterion of knowledge that Socrates assumes. 
What I want to focus on, however, is the impression conveyed to the 
reader about the characters of the dialogue and the connection between this 
impression and the ideal of rationality. 
Plato suggests that although Euthyphro holds strong views and is willing 
to act on them, he is unable to provide a 
justification for either his belief or the action based upon it. 
Even if he is correct that his father ought to be prosecuted, his 
confidence is still misplaced because it lacks a rational basis. 
Though Euthyphro’s belief may be true, he has no reliable grounds for 
thinking that it is true.  Once 
Socrates exposes the lack of a justification for his belief, it is both 
irrational and irresponsible for 
Euthyphro to continue to hold it.[3] 
-Cf., 
in this regard, Plato’s Socrates’ speech at the end of the dialogue (15e-16a).[4] 
Note that while the dialogue does 
not reach a satisfactory dialectical resolution, it is telling that Euthyphro 
indicates that he is going to pursue the course of action that he describes to 
Socrates (even though he appears to lack a rational justification for doing so). 
The dialogue shows that a consequence of
not reaching aporia is that 
one may act on one’s ignorance, and the consequences (both 
for oneself and for others) may be terrible! 
    
The dialogue also introduces us to Plato’s doctrine of the
Forms—introducing the notion and 
making clear what he takes to be the objective character of these “things.” 
The distinction between accidental and essential 
characteristics is also introduced and its tie to the Forms is made explicit. 
For Plato, the Forms are objective, absolute, unchanging, objective, overarching, 
rational, knowable, and 
transcendent.  In his
Philosophy After Objectivity: Making 
Sense In Perspective, Paul Moser clarifies that 
both Plato and Aristotle…understand 
philosophical ‘what is X?’ questions 
as essence-seeking; and both 
understand definition as the way to identify essence….The relevant definitions, 
according to Plato and Aristotle, are not stipulative[5]; 
nor are they reports on conventional linguistic usage. 
They are rather real 
definitions: that is, essence-specifying 
definitions signifying the properties in virtue of which something is located in 
its proper genus or species.[6]
  
    
Another important aspect of the dialogue is that it portrays Socrates on 
the verge of his trial and presents his attitude or frame of mind—he is not 
affected.  Note that he continues to 
do he is accused of as he prepares to go to court! 
    
Within the dialogue we also find a distinction between something
being good because the gods approve of it and the
gods approving of something because it is good—remember 
this whenever you read of god or gods in Plato! 
His  forms (their
objectivity) are
outside of the god(s)—tie 
this to talk of the forms.[7] 
Here a comment from George Sher, in his “The Meaning of Moral Language,” 
is worthy of note: 
many [now] believe that what 
makes an act right is just the fact that God approves of it or commands us to 
perform it.  However, this 
theory—the divine command theory—is 
often said to be vulnerable to an objection that was first advanced by Plato. 
As Plato argues in [The Euthyphro], 
if acts like theft and murder are only wrong because God forbids them then God 
cannot forbid such acts because they 
are wrong.  In that case, God’s 
commands are simply 
arbitrary. 
Because it is unclear how arbitrary commands could have authority, Plato 
concludes that we should reject the divine command theory.[8] 
Of course, many proponents of the Divine Command 
theory believe that Sher is incorrect here, but I think that he correctly 
captures Plato’s concern—and it is 
important to note that at the time Plato is writing, the concern is not with the 
commands of a single deity, but with those of a large number of such, and none 
of them were generally considered to be paragons of morality. 
    
As we read the Crito, we will 
come to see that there is some special obligation which individuals “owe” their 
parents in ancient Greece.  Richard 
Kraut confirms this: “the Laws are relying on the assumption, widespread in 
ancient Greece, that although there is no general objection to violence and 
killing, attacks upon one’s parents are absolutely forbidden.”[9] 
In a footnote Kraut continues: “the special inviolability of parents was 
built into the legal system.  
Whereas the normal penalty for assault in Athens was a fine, it was far more 
serious—disenfranchisement—when 
the victim was a parent or a grandparent of the accused.”[10] 
This means, of course, that Socrates’ wonder at Euthyphro’s certainty 
regarding the rightness of his case is even more understandable. 
    
In thinking about the phrase “what the gods like,” we should consider 
what Mark McPherran maintains in his “Does Piety Pay? 
Socrates and Plato on Prayer and Sacrifice:” 
…it is important to note that 
sacrificial activity [in ancient Greece] was often not so much aimed at 
obtaining specific goods or evils as maintaining an ordered relationship with 
the gods and ensuring their general good will, a will that (it was generally 
agreed) could not be reliably 
influenced by such activity.[11] 
In view of his commitment to the 
idea that the only real (or at least the most essential) good is
virtue [arête] 
(and that an object’s goodness hinges on its wise, virtuous use), [Plato’s] 
Socrates must reject the purely 
mercantile tendencies of popular religious practice—namely, those resting on the 
incorrect assumptions that sacrificial items are themselves god-valued and that 
our requests for particular material gains and physical protection will be given 
significant weight by the gods.  
Rather [Plato’s] Socrates’ [virtuous] gods cannot care for any material 
sacrifice per se, and whether or not any particular request will be granted 
depends on whether or not the gods’ doing so will further the overall good.[12]  
In short, it would be wrong to assume that Socrates’ (or 
Plato’s, or Plato’s Socrates’) view of piety and “what the gods like” is like 
that of Euthyphro’s (or the typical Athenians). 
2. The Text: 
2-4 Euthyphro and Socrates meet 
and it is established that Socrates has been indicted while Euthyphro has 
indicted his father for murder.  [A
servant kills a
slave in drunken anger and, in 
response, Euthyphro’s father ties the servant up, throws him in a ditch, and 
sends for a priest for advice as to what is to be done with him. 
In the time before the answer from the priest arrives, the servant dies 
from hunger and cold.  Euthyphro is 
now prosecuting his father for murder 
(against the wishes of his family).] 
4e Euth: “But their (Euth’s 
father, relatives) ideas of divine attitude to piety are wrong, Socrates.” 
Soc: “Whereas, by Zeus, 
Euthyphro, you think that your
knowledge of the divine, and of 
piety and impiety, is so accurate that when those things happened as you say, 
you have no fear of having acted impiously in bringing you father to trial?” 
5d Soc:
What is piety?[13] 
Euth: “...The 
pious is to do what I am doing now” (accusing his father). 
After all, Zeus punished his father. 
-6a Soc: I find these things and 
others (e.g., war among the gods) hard to believe. 
-6d Euth: Such things (and more) 
happen with the gods!  
Socrates is incredulous, 
but he continues by asking for the nature (common characteristic or Form) of 
piety—in the early dialogues they are viewed as
immanent (later they are treated as
transcendent). 
-6e Bear in mind then 
that I did not bid you tell me one or two of the many pious actions but that 
form itself that makes all pious actions pious, for you agreed that
all impious actions and impious and all 
pious actions are pious through one form....” 
7a Euth: “What 
is dear to the gods is pious.” 
Soc: Excellent, but let us 
examine what you mean by this so that we can see whether it is true. 
-7b You have stated that the gods 
war with one another, “what are the subjects of difference that cause hatred and 
anger?”  
-7c Surely they don’t war over 
objective things like the size, weights and measures of things? 
-7d The things about 
which differences cause hatred and anger, surely, are disagreements about 
“...the just and unjust, the beautiful and the ugly, the good and the bad. 
Are these not the subjects of difference about which, when we are unable 
to come to a satisfactory decision, you and I and other men become hostile to 
each other whenever we do?”  
--Note that it is exactly these 
subjects, of course, which the philosophers would practice their dialectical 
activities upon.  Moreover, it is 
exactly these topics upon which Socrates (and Plato’s Socrates) and the other 
Athenians disagree (with the results of anger and hatred on, at least, the 
others’ part).  It is Plato’s 
Socrates who claims that unless we approach these topics rationally, we will 
have no real opportunity of resolving our disagreements except by force. 
Euthyphro, on the one hand (and Socrates and Euthyphro’s family, as well 
as ordinary Athenians), on the other hand, disagree about what piety is and 
requires.  Note that Euthyphro is 
prepared to go to court and “force” the issue, while Plato’s Socrates would 
settle the disagreement through the use of reasoned dialectic! 
--7e-8c But, then, the 
same thing may be pious or impious depending on the god! 
---Does Socrates 
contradict himself here?  At 6a 
above he questions whether the gods have done the sorts of things which 
Euthyphro says they have done (war amongst themselves, etc.), but now (7e) he 
says that they do so.  
Note: an argument which uses an
opponent’s premises or basic notions 
and comes up with a problem for that opponent is a
stronger argument against the 
opponent than is one which relies upon premises which the opponent might not 
accept [contrast “internal” and 
“external” critiques].  Note 
also Grube’s footnote here regarding Zeus’ defeating his father, Cronus; and 
Cronus’s defeating his father, Uranus. 
Euthyphro used these examples at 6a to defend his claim that his 
treatment of his own father is pious! 
The fact that these examples are mentioned
again, here (this time by Plato’s 
Socrates) should be attended to as most Greeks reading or hearing this dialogue 
would surely readily recognize these stories, and would, perhaps while being a 
bit shocked by Euthyphro’s proposing to try his
father for murder, would also 
recognize that harsh treatment of fathers is not without precedent. 
8c Euth:
On this issue (the piety of accusing my 
father) no god would disagree. 
9c Soc: Even if we could 
establish this, we would be no closer to a definition of piety. 
We have merely established so far that what all the gods love is pious, 
what they all hate is impious, and what they differ on is neither. 
10a “Is 
the pious loved by the gods because it is pious, or is it pious because it is 
loved by the gods?”  
-Here
he is distinguishing between
essential and
accidental characteristics. 
-10c Various examples are offered 
which incline us to the conclusion that piety is loved by the gods
because it is pious. 
-G.M.A. Grube maintains that: 
“...it gives in a nutshell a point of view from which Plato never departed. 
Whatever the gods may be, they must by their very nature love the right
because it is right. 
They must conform to it as we must, but more rigidly because they are 
more perfect.  The universe is not ruled 
by the divine will, since he who must conform cannot be omnipotent.
 He cannot love the right at his will, he
must do so.
 This separation of the dynamic power of 
god from the ultimate reality, this setting up of absolute values above the gods 
themselves was not as unnatural to a Greek as it would be to us. 
It did not require any great mental effort or originality, for the Greek 
gods never claimed to have created the world. 
The gods who ruled on Olympus in historical times had obtained their 
power by conquest over a previous generation of gods, and even those were not 
creators but created beings.  As in 
Homer Zeus must obey the balance of Necessity, so the Platonic gods must conform 
to an eternal scale of values.  They 
did not create them, cannot alter them, cannot indeed wish to do so.”[14] 
--While I think that Grube is 
correct in part of what he contends here, I think he overemphasizes the extent 
to which fellow Athenians would find what Plato is saying to be comprehensible 
(but note, Grube is the expert).  
While we have little trouble 
accepting the idea of eternal, unchanging, objective laws of nature, this was 
not something they would have found to be at all clear. 
They did attribute to the deities superior powers over those of men, but 
their conception of the deities was distinctly
anthropomorphic—their gods behaved as 
human beings do, and they would, I believe, not naturally think that either 
deities or men obeyed eternal,
objective,
absolute,
unchanging, and 
knowable laws of nature.  
Plato’s suggestion that the gods would be good only if they measured up to some 
independent, objective, unchanging standard would have led many to believe he 
did, indeed, worship something other than the gods of his city! 
11a-b Soc: But, then, Euthyphro, 
you have not defined piety for me.  
Its being loved by the gods is an accidental and additional characteristic—we’ve 
not been given the form or common characteristic. 
Next Plato does something unusual 
(at least for the Plato of the early dialogues—the Euthyphro, 
Apology, and Crito, for example),
he offers the beginning point for a 
proper definition rather than (simply) criticizing the definitions offered by 
others.  This shows us something 
about what (the early) Plato actually takes the nature of “piety” to be! 
11e
Soc: “Is all that is pious necessarily 
just?  Yes.” 
       “Is 
all that is just pious?  No.” 
Thus, the pious is a part of the just[15]—what part? Plato held that the Forms conformed to a “species-genus” ordering. Thus “man” is a special sort of “animal—a rational one! Of course this means that this characterization of “man” requires two further clarifications: what is rationality, and what is “animality!”
-12e Euth: The godly and pious is
the part of the just which is concerned 
with the care of the gods; while that concerned with the care of men is the 
remaining part of justice.  
-13a-d Soc: What kind of care? 
     --14-15 
Do the gods benefit from our care? 
No!  
-15b Euth: it is rather like the 
care of slaves for their masters: 
sacrifice and
prayer, 
honor,
reverence, 
gratitude. 
These things are most dear to the 
gods.  
15b Soc:
We’ve come full circle. 
Now you say that the pious is what the gods love. 
But we have already agreed that the fact that the gods love the pious is 
an accidental characteristic and what we want is the form. 
Let’s start again.  
15e Euth: “Some 
other time Socrates!”  
15e-16a Note the
irony in the final statement by 
Plato’s Socrates—it is relevant to the 
Apology, and to Meletus’ charge against him: 
-“What a thing to do, my 
friend!  By going [now] you have 
cast me down from a great hope I had, that I would learn from you the nature of 
the pious and the impious and so escape Meletus’ indictment by showing that I 
had acquired wisdom in divine matters from Euthyphro, and my ignorance would no 
longer cause me to be careless and inventive about such things, and that I would 
be better for the rest of my life.”  
(end) 
3. Final Comments 
on the Euthyphro: 
In her Cultivating 
Humanity: A Classical Defense of Reform In Liberal Education, Martha 
Nussbaum maintains that: 
Socrates’ questions 
generals about courage [Laches], 
friends about friendship [Lysis], 
politicians about self-restraint [Charmides], 
religious people about piety [Euthyphro]. 
In every case he demands to know whether they can give good and coherent 
reasons for what they do, and in every case they prove to have been 
insufficiently reflective.  
 Socrates 
shows them[16] 
that the demand for reasons has a bearing on what they will actually choose. 
This demand now begins to seem not an idle luxury in the midst of 
struggles for power, but an urgent practical necessity.[17] 
In her Plato At The 
Googleplex: Why Philosophy Won’t Go Away, Rebecca Goldstein maintains that:
the argument Plato has Socrates 
make in the Euthyphro is one of the 
most important in the history of moral philosophy. 
When it is joined with another of Plato’s claims, namely that a person’s 
action is virtuous only if he can supply a reason for its being so, the 
Euthyphro Argument demonstrates the need for moral philosophy. 
We humans must reason our way to morality or we will not get there at 
all.  Relying on fiats, even if they 
emanate from on high, will not allow us to achieve an understanding of virtue. 
Any progress in our moral understanding—progress that, in time, would 
take us some distance away from the slave-abusing, captive-slaughtering, 
philosopher-executing, misogynistic Athens that held itself up as the very 
standard of arête has been made on 
the basis of an argument Plato put into the mouth of a man awaiting a hearing on 
charges of impiety and corruption of the young. 
This moment in Socrates’ life, as Plato has rendered it, is sufficiently 
important to step away from it, and reflect….to ignore Plato’s argument that, 
since religious authority can’t answer these questions, we had better get to 
work formulating the reasons that 
make right actions right and wrong actions wrong. 
It is to ignore the work that has since been done, not only on normative 
questions of ethics but on the normative questions of epistemology, the work 
that is necessary to speak about rationality at all. 
It is to ignore the conclusions to which philosophy-jeerers freely help 
themselves, most certainly when they speak in the name of rationality.[18] 
								
								
								
								
								[1] Thomas 
								Brickhouse and Nicholas Smith, “Introduction” to
								The Trial 
								and Execution of Socrates: Sources and 
								Controversies (N.Y.: Oxford U.P., 2002), pp. 
								1-13, p. 11. 
								
								
								
								
								
								[2] Stanley 
								Cavell, “Must We Mean What We Say?”, in
								his Must 
								We Mean What We Say? 
								A Book of Essays (Cambridge: 
								Cambridge U.P., 1969), pp. 1-43, p. 39. 
								
								
								
								
								
								[3] Steven 
								Nathanson,
								The Ideal 
								of Rationality (Atlantic Heights: 
								Humanities, 1985), p. 4. 
								
[4] The translation of Plato’s dialogue is G.M.A. Grube’s (revised by John Cooper) and appears in Plato: Five Dialogues (Euthyphro, Apology, Crito, Meno, Phaedo) (second edition) (Indianapolis: Hackett, 2003). The marginal page references in the text refer to a collection of Plato’s works (Platonis Opera [Geneva: 1578]) edited by a famed printer and humanist of the time named Henri Estienne (1528-1598), also known by the Latinized version of his name: Stephanus. This edition’s pagination has become the standard way of identifying and referring to Plato and I will use these references rather than page numbers in the translation.
[5] A stipulative definition is a type of definition in which a new or currently existing term is given a new specific meaning for the purposes of the argument or discussion in a particular context. For example my saying, in the context of fixing someone else coffee: "by "milk" I mean "non.fat milk.""
								
								
								
								
								[6] Paul 
								Moser, 
								Philosophy After Objectivity: Making Sense In 
								Perspective (N.Y.: Oxford U.P., 1993), p. 
								20.  
								Emphasis (italics and bold) added to passage twice. 
								
								
								
								
								
								[7] Also note 
								that when you confront the singular (‘god’), as 
								opposed to the plural (‘gods’), you can not 
								presume that the deity being mentioned is any of 
								the ones you may generally be familiar with. 
								The deity of the religions of Abraham 
								(Judaism, Christianity, and Islam) was not one 
								of the ones commonly worshiped in ancient 
								Greece! 
								
								
								
								
								
								[8] George 
								Sher, “The Meaning of Moral Language,” in his
								Ethics: 
								Essential Readings in Moral Philosophy 
								(Third Edition) (N.Y. Routledge, 2012). 
								
								
								
								
								
								[9] Richard 
								Kraut, 
								Socrates and the State (Princeton: Princeton 
								U.P., 1984), pp. 48-49. 
								
								
								
								
								
								[10]
								Ibid.,
								p. 49. 
								
								
								
								
								
								[11] Mark 
								McPherran, “Does Piety Pay? 
								Socrates and Plato on Prayer and 
								Sacrifice,” in
								The Trial 
								and Execution of Socrates: Sources and 
								Controversies, eds. Thomas Brickhouse and 
								Nicholas Smith (N.Y.: Oxford U.P., 2002), pp. 
								162-190, p. 171. 
								The article originally appeared in
								Reason 
								and Religion in Socratic Philosophy, eds. 
								Nicholas Smith and Paul Woodruff (N.Y.: Oxford 
								U.P., 2000), pp. 89-114. 
								
								
								
								
								
								[12]
								Ibid. 
								
								
								
								
								
								[13] As Grube 
								notes in his introduction to this dialogue, “the 
								Greek term
								hosion 
								means, in the first instance, the knowledge of 
								the proper ritual in prayer and sacrifice and of 
								course its performance (as Euthyphro himself 
								defines it in 14b). 
								But obviously Euthyphro uses it is a much 
								wider sense of pious conduct generally (e.g., 
								his own), and in that sense the word is 
								practically equivalent to righteousness….” 
								Plato: 
								Five Dialogues (Euthyphro, Apology, Crito, Meno, 
								Phaedo),
								op. cit., 
								p. 1.  
								
								
								
								
								
								[14] 
								Plato's Thought: With New Introduction, 
								Bibliographic Essay, and Bibliography, 
								G.M.A. Grube [1935], new information by Donald 
								J. Zeyl (Indianapolis: Hackett, 1980), pp. 
								152-153. 
								
								
								
								
								
								[15] In his
								Gorgias (507a5-b4)
								Plato also claims that piety is a part of 
								justice. 
								
								
								
								
								
								[16] Better, 
								I believe, he shows
								
								us. 
								
								
								
								
								
								[17] Martha 
								Nussbaum, 
								Cultivating Humanity: A Classical Defense of 
								Reform In Liberal Education (Cambridge: 
								Harvard U.P., 1997), p. 25. 
								
								
								
								
								
								[18] Rebecca 
								Goldstein, 
								Plato At The Googleplex: Why Philosophy Won’t Go 
								Away (N.Y.: Pantheon, 2014), p. 306. 
								
Email: hauptli@fiu.edu
Last revised: 09/24/23