I dare say, Glaucon, that you are as much charmed by her as I am, especially when she appears in Homer?
Yes, indeed, I am greatly charmed.
Shall I propose, then, that she be allowed to return from exile, but upon this condition only--that she make a defence of herself in lyrical or some other metre?
Certainly.
And we may further grant to those of her defenders who are lovers of poetry and yet not poets the permission to speak in prose on her behalf: let them show not only that she is pleasant but also useful to States and to human life, and we will listen in a kindly spirit; for if this can be proved we shall surely be the gainers--I mean, if there is a use in poetry as well as a delight?
Certainly, he said, we shall the gainers.
If her defence fails, then, my dear friend, like other persons who are enamoured of something, but put a restraint upon themselves when they think their desires are opposed to their interests, so too must we after the manner of lovers give her up, though not without a struggle.
We too are inspired by that love of poetry which the education of noble States has implanted in us, and therefore we would have her appear at her best and truest; but so long as she is unable to make good her defence, this argument of ours shall be a charm to us, which we will repeat to ourselves while we listen to her strains; that we may not fall away into the childish love of her which captivates the many.

At all events we are well aware that poetry being such as we have described is not to be regarded seriously as attaining to the truth; and he who listens to her, fearing for the safety of the city which is within him, should be on his guard against her seductions and make our words his law.
Yes, he said, I quite agree with you.
Yes, I said, my dear Glaucon, for great is the issue at stake, greater than appears, whether a man is to be good or bad.

And what will any one be profited if under the influence of honour or money or power, aye, or under the excitement of poetry, he neglect justice and virtue?
Yes, he said; I have been convinced by the argument, as I believe that any one else would have been.
And yet no mention has been made of the greatest prizes and rewards which await virtue.
What, are there any greater still?
If there are, they must be of an inconceivable greatness.
Why, I said, what was ever great in a short time?
The whole period of threescore years and ten is surely but a little thing in comparison with eternity?
Say rather 'nothing,' he replied.
And should an immortal being seriously think of this little space rather than of the whole?
Of the whole, certainly.

But why do you ask?
Are you not aware, I said, that the soul of man is immortal and imperishable?
He looked at me in astonishment, and said: No, by heaven: And are you really prepared to maintain this?
Yes, I said, I ought to be, and you too--there is no difficulty in proving it.
I see a great difficulty; but I should like to hear you state this argument of which you make so light.
Listen then.
I am attending.
There is a thing which you call good and another which you call evil?
Yes, he replied.
Would you agree with me in thinking that the corrupting and destroying element is the evil, and the saving and improving element the good?
Yes.
And you admit that every thing has a good and also an evil; as ophthalmia is the evil of the eyes and disease of the whole body; as mildew is of corn, and rot of timber, or rust of copper and iron: in everything, or in almost everything, there is an inherent evil and disease?
Yes, he said.
And anything which is infected by any of these evils is made evil, and at last wholly dissolves and dies?
True.
The vice and evil which is inherent in each is the destruction of each; and if this does not destroy them there is nothing else that will; for good certainly will not destroy them, nor again, that which is neither good nor evil.
Certainly not.
If, then, we find any nature which having this inherent corruption cannot be dissolved or destroyed, we may be certain that of such a nature there is no destruction?
That may be assumed.
Well, I said, and is there no evil which corrupts the soul?
Yes, he said, there are all the evils which we were just now passing in review: unrighteousness, intemperance, cowardice, ignorance.
But does any of these dissolve or destroy her ?--and here do not let us fall into the error of supposing that the unjust and foolish man, when he is detected, perishes through his own injustice, which is an evil of the soul.

Take the analogy of the body: The evil of the body is a disease which wastes and reduces and annihilates the body; and all the things of which we were just now speaking come to annihilation through their own corruption attaching to them and inhering in them and so destroying them.