The Republic by Plato. Book 5. Card 12 of 16. Socrates, Glaucon and Adeimantus.
SOCRATES - GLAUCON - ADEIMANTUS.
Let me begin by reminding you that we found our way hither in the search after justice and injustice.
True, he replied; but what of that?
I was only going to ask whether, if we have discovered them, we are to require that the just man should in nothing fail of absolute justice; or may we be satisfied with an approximation, and the attainment in him of a higher degree of justice than is to be found in other men?
The approximation will be enough.
We are enquiring into the nature of absolute justice and into the character of the perfectly just, and into injustice and the perfectly unjust, that we might have an ideal. We were to look at these in order that we might judge of our own happiness and unhappiness according to the standard which they exhibited and the degree in which we resembled them, but not with any view of showing that they could exist in fact.
True, he said.
Would a painter be any the worse because, after having delineated with consummate art an ideal of a perfectly beautiful man, he was unable to show that any such man could ever have existed?
He would be none the worse.
Well, and were we not creating an ideal of a perfect State?
To be sure.
And is our theory a worse theory because we are unable to prove the possibility of a city being ordered in the manner described?
Surely not, he replied.
That is the truth, I said. But if, at your request, I am to try and show how and under what conditions the possibility is highest, I must ask you, having this in view, to repeat your former admissions.
What admissions?
I want to know whether ideals are ever fully realised in language? Does not the word express more than the fact, and must not the actual, whatever a man may think, always, in the nature of things, fall short of the truth? What do you say?
I agree.
Then you must not insist on my proving that the actual State will in every respect coincide with the ideal: if we are only able to discover how a city may be governed nearly as we proposed, you will admit that we have discovered the possibility which you demand; and will be contented. I am sure that I should be contented --will not you?
Yes, I will.
Text source: The complete text of the Republic by Plato, translated by Benjamin Jowett.