And if he is ignorant of the true nature of any subject, how can he detect the greater or less degree of likeness in other things to that of which by the hypothesis he is ignorant?
Phaedr.
He cannot.
Soc.
And when men are deceived and their notions are at variance with realities, it is clear that the error slips in through resemblances?
Phaedr.
Yes, that is the way.
Soc.
Then he who would be a master of the art must understand the real nature of everything; or he will never know either how to make the gradual departure from truth into the opposite of truth which is effected by the help of resemblances, or how to avoid it?
Phaedr.
He will not.
Soc.
He then, who being ignorant of the truth aims at appearances, will only attain an art of rhetoric which is ridiculous and is not an art at all?
Phaedr.
That may be expected.
Soc.
Shall I propose that we look for examples of art and want of art, according to our notion of them, in the speech of Lysias which you have in your hand, and in my own speech?
Phaedr.
Nothing could be better; and indeed I think that our previous argument has been too abstract and-wanting in illustrations.
Soc.
Yes; and the two speeches happen to afford a very good example of the way in which the speaker who knows the truth may, without any serious purpose, steal away the hearts of his hearers.
This piece of good-fortune I attribute to the local deities; and perhaps, the prophets of the Muses who are singing over our heads may have imparted their inspiration to me.
For I do not imagine that I have any rhetorical art of my own.
Phaedr.
Granted; if you will only please to get on.
Soc.
Suppose that you read me the first words of Lysias' speech.
Phaedr.
"You know how matters stand with me, and how, as I conceive, they might be arranged for our common interest; and I maintain that I ought not to fail in my suit, because I am not your lover.
For lovers repent-" Soc.
Enough:-Now, shall I point out the rhetorical error of those words?
Phaedr.
Yes.
Soc.
Every one is aware that about some things we are agreed, whereas about other things we differ.
Phaedr.
I think that I understand you; but will you explain yourself?
Soc.
When any one speaks of iron and silver, is not the same thing present in the minds of all?
Phaedr.
Certainly.
Soc.
But when any one speaks of justice and goodness we part company and are at odds with one another and with ourselves?
Phaedr.
Precisely.
Soc.
Then in some things we agree, but not in others?
Phaedr.
That is true.
Soc.
In which are we more likely to be deceived, and in which has rhetoric the greater power?
Phaedr.
Clearly, in the uncertain class.
Soc.
Then the rhetorician ought to make a regular division, and acquire a distinct notion of both classes, as well of that in which the many err, as of that in which they do not err?
Phaedr.
He who made such a distinction would have an excellent principle.
Soc.
Yes; and in the next place he must have a keen eye for the observation of particulars in speaking, and not make a mistake about the class to which they are to be referred.
Phaedr.
Certainly.
Soc.
Now to which class does love belong-to the debatable or to the undisputed class?
Phaedr.
Themes
◆Anamnesissoteriology
Platonic recollection: knowledge as the soul's recovery of what it knew before birth, with learning as remembering rather than acquisition.
The passage emphasizes knowing the 'true nature' of subjects as a prerequisite for avoiding error through resemblance.
Augustinian and Plotinian doctrine that evil has no positive being of its own but is a lack, distortion, or absence of the good — denying ontological dualism while preserving moral seriousness.
Error and deception are described as a 'departure from truth' rather than positive existence.
Diotima's staged ascent from love of beautiful bodies → beautiful souls → beautiful pursuits → beautiful knowledge → Beauty itself; the canonical scala amoris that grounds Plotinus's On the Beautiful and Bruno's Eroici Furori — distinct from generic spiritual_ascent in that eros is the specific motive force.
The text explicitly discusses the nature of love as a subject that can deceive or mislead in speech.