No one punishes the evil-doer under the notion, or for the reason, that he has done wrong -- only the unreasonable fury of a beast acts in that way. But he who desires to inflict rational punishment does not retaliate for a past wrong, for that which is done cannot be undone, but he has regard to the future, and is desirous that the man who is punished, and he who sees him punished, may be deterred from doing wrong again.
From a short-sided view, the whole moving contents of the heavens seemed to them a parcel of stones, earth and other soul-less bodies, though they furnish the sources of the world order.
SOCRATES: Perhaps we may be wrong; if so, you in your wisdom should convince us that we are mistaken in preferring justice to injustice. THRASYMACHUS: And how am I to convince you, he said, if you are not already convinced by what I have just said; what more can I do for you? Would you have me put the proof bodily into your souls?
Man...is a tame or civilized animal; never the less, he requires proper instruction and a fortunate nature, and then of all animals he becomes the most divine and most civilized; but if he be insufficiently or ill- educated he is the most savage of earthly creatures.
'But surely "blind" is just how you would describe men who have no true knowledge of reality, and no clear standard in their mind to refer to, as a painter refers to his model, and which they can study closely before they start laying down rules about what is fair or right or good where they are needed, or maintaining, as Guardians, any rules that already exist.'
'Yes, blind is just about what they are'
The music masters familiarize children's minds with rhythms and melodies, thus making them more civilized, more balanced, better adjusted in themselves, and more capable in whatever they say or do, for rhythm and harmony are essential to the whole of life.