Which are they? he said.
The institution of temples and sacrifices, and the entire service of gods, demigods, and heroes; also the ordering of the repositories of the dead, and the rites which have to be observed by him who would propitiate the inhabitants of the world below. These are matters of which we are ignorant ourselves, and as founders of a city we should be unwise in trusting them to any interpreter but our ancestral deity. He is the god who sits in the center, on the navel of the earth, and he is the interpreter of religion to all mankind.
You are right, and we will do as you propose.
But where, amid all this, is justice? son of Ariston, tell me where. Now that our city has been made habitable, light a candle and search, and get your brother and Polemarchus and the rest of our friends to help, and let us see where in it we can discover justice and where injustice, and in what they differ from one another, and which of them the man who would be happy should have for his portion, whether seen or unseen by gods and men.
SOCRATES - GLAUCON
Nonsense, said Glaucon: did you not promise to search yourself, saying that for you not to help justice in her need would be an impiety?
I do not deny that I said so, and as you remind me, I will be as good as my word; but you must join.
We will, he replied.
Well, then, I hope to make the discovery in this way: I mean to begin with the assumption that our State, if rightly ordered, is perfect.
That is most certain.
And being perfect, is therefore wise and valiant and temperate and just.
That is likewise clear.
And whichever of these qualities we find in the State, the one which is not found will be the residue?
Very good.
If there were four things, and we were searching for one of them, wherever it might be, the one sought for might be known to us from the first, and there would be no further trouble; or we might know the other three first, and then the fourth would clearly be the one left.
Very true, he said.
And is not a similar method to be pursued about the virtues, which are also four in number?
Clearly.
First among the virtues found in the State, wisdom comes into view, and in this I detect a certain peculiarity.
What is that?
The State which we have been describing is said to be wise as being good in counsel?
Very true.
And good counsel is clearly a kind of knowledge, for not by ignorance, but by knowledge, do men counsel well?
Clearly.
And the kinds of knowledge in a State are many and diverse?
Of course.
There is the knowledge of the carpenter; but is that the sort of knowledge which gives a city the title of wise and good in counsel?
Certainly not; that would only give a city the reputation of skill in carpentering.
Then a city is not to be called wise because possessing a knowledge which counsels for the best about wooden implements?
Certainly not.
Nor by reason of a knowledge which advises about brazen pots, I said, nor as possessing any other similar knowledge?
Not by reason of any of them, he said.
Nor yet by reason of a knowledge which cultivates the earth; that would give the city the name of agricultural?
Yes.
Well, I said, and is there any knowledge in our recently founded State among any of the citizens which advises, not about any particular thing in the State, but about the whole, and considers how a State can best deal with itself and with other States?
There certainly is.
And what is knowledge, and among whom is it found? I asked.
It is the knowledge of the guardians, he replied, and found among those whom we were just now describing as perfect guardians.