Will any one deny the other point, that there may be sons of kings or princes who are by nature philosophers?
Surely no man, he said.
And when they have come into being will any one say that they must of necessity be destroyed; that they can hardly be saved is not denied even by us; but that in the whole course of ages no single one of them can escape--who will venture to affirm this?
Who indeed! But, said I, one is enough; let there be one man who has a city obedient to his will, and he might bring into existence the ideal polity about which the world is so incredulous.
Yes, one is enough.
The ruler may impose the laws and institutions which we have been describing, and the citizens may possibly be willing to obey them?
Certainly.
And that others should approve of what we approve, is no miracle or impossibility?
I think not.
But we have sufficiently shown, in what has preceded, that all this, if only possible, is assuredly for the best.
We have.
And now we say not only that our laws, if they could be enacted, would be for the best, but also that the enactment of them, though difficult, is not impossible.
Very good.
And so with pain and toil we have reached the end of one subject, but more remains to be discussed;--how and by what studies and pursuits will the saviours of the constitution be created, and at what ages are they to apply themselves to their several studies?
Certainly.
I omitted the troublesome business of the possession of women, and the procreation of children, and the appointment of the rulers, because I knew that the perfect State would be eyed with jealousy and was difficult of attainment; but that piece of cleverness was not of much service to me, for I had to discuss them all the same.

The women and children are now disposed of, but the other question of the rulers must be investigated from the very beginning.

We were saying, as you will remember, that they were to be lovers of their country, tried by the test of pleasures and pains, and neither in hardships, nor in dangers, nor at any other critical moment were to lose their patriotism--he was to be rejected who failed, but he who always came forth pure, like gold tried in the refiner's fire, was to be made a ruler, and to receive honours and rewards in life and after death.

This was the sort of thing which was being said, and then the argument turned aside and veiled her face; not liking to stir the question which has now arisen.
I perfectly remember, he said.
Yes, my friend, I said, and I then shrank from hazarding the bold word; but now let me dare to say--that the perfect guardian must be a philosopher.
Yes, he said, let that be affirmed.
And do not suppose that there will be many of them; for the gifts which were deemed by us to be essential rarely grow together; they are mostly found in shreds and patches.
What do you mean?
he said.
You are aware, I replied, that quick intelligence, memory, sagacity, cleverness, and similar qualities, do not often grow together, and that persons who possess them and are at the same time high-spirited and magnanimous are not so constituted by nature as to live orderly and in a peaceful and settled manner; they are driven any way by their impulses, and all solid principle goes out of them.
Very true, he said.
On the other hand, those steadfast natures which can better be depended upon, which in a battle are impregnable to fear and immovable, are equally immovable when there is anything to be learned; they are always in a torpid state, and are apt to yawn and go to sleep over any intellectual toil.
Quite true.
And yet we were saying that both qualities were necessary in those to whom the higher education is to be imparted, and who are to share in any office or command.
Certainly, he said.
And will they be a class which is rarely found?
Yes, indeed.
Then the aspirant must not only be tested in those labours and dangers and pleasures which we mentioned before, but there is another kind of probation which we did not mention--he must be exercised also in many kinds of knowledge, to see whether the soul will be able to endure the highest of all, will faint under them, as in any other studies and exercises.
Yes, he said, you are quite right in testing him.

But what do you mean by the highest of all knowledge?
You may remember, I said, that we divided the soul into three parts; and distinguished the several natures of justice, temperance, courage, and wisdom?
Indeed, he said, if I had forgotten, I should not deserve to hear more.
And do you remember the word of caution which preceded the discussion of them?
To what do you refer?
We were saying, if I am not mistaken, that he who wanted to see them in their perfect beauty must take a longer and more circuitous way, at the end of which they would appear; but that we could add on a popular exposition of them on a level with the discussion which had preceded.
And you replied that such an exposition would be enough for you, and so the enquiry was continued in what to me seemed to be a very inaccurate manner; whether you were satisfied or not, it is for you to say.
Yes, he said, I thought and the others thought that you gave us a fair measure of truth.
But, my friend, I said, a measure of such things Which in any degree falls short of the whole truth is not fair measure; for nothing imperfect is the measure of anything, although persons are too apt to be contented and think that they need search no further.
Not an uncommon case when people are indolent.
Yes, I said; and there cannot be any worse fault in a guardian of the State and of the laws.
True.
The guardian then, I said, must be required to take the longer circuit, and toll at learning as well as at gymnastics, or he will never reach the highest knowledge of all which, as we were just now saying, is his proper calling.
What, he said, is there a knowledge still higher than this--higher than justice and the other virtues?
Yes, I said, there is.