[Not enough is known about solid geometry] and for two reasons: in the first place, no government places value on it; this leads to a lack of energy in the pursuit of it, and it is difficult. In the second place, students cannot learn it unless they have a teacher. But then a teacher can hardly be found.
The soul takes nothing with her to the other world but her education and culture; and these, it is said, are of the greatest service or of the greatest injury to the dead man, at the very beginning of his journey hither.
The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.
The philosopher is in love with truth, that is, not with the changing world of sensation, which is the object of opinion, but with the unchanging reality which is the object of knowledge.
For not by art does the poet sing, but by power divine. Had he learned by rules of art, he would have known how to speak not of one theme only, but of all; and therefore God takes away the minds of poets, and uses them as his ministers, as he also uses diviners and holy prophets, in order that we who hear them may know them to be speaking not of themselves who utter these priceless words in a state of unconsciousness, but that God himself is the speaker, and that through them he is conversing with us.
The greatest penalty of evil-doing is to grow into the likeness of bad men, and, growing like them, to fly from the conversation of the good, and be cut off from them, and cleave to and follow after the company of the bad.
'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'
Love is the joy of the good, the wonder of the wise, the amazement of the gods; desired by those who have no part in him, and precious to those who have the better part in him.
When I hear a man discoursing of virtue, or of any sort of wisdom, who is a true man and worthy of his theme, I am delighted beyond measure: and I compare the man and his words, and note the harmony and correspondence of them. And such an one I deem to be the true musician, having in himself a fairer harmony than that of the lyre.