True opinions are a fine thing and do all sorts of good so long as they stay in their place; but they will not stay long. They run away from a man's mind, so they are not worth much until you tether them by working out the reason. Once they are tied down, they become knowledge, and are stable.
We see many instances of cities going down like sinking ships to their destruction. There have been such wrecks in the past and there surely will be others in the future, caused by the wickedness of captains and crews alike. For these are guilty men, whose sin is supreme ignorance of what matters most.
'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'
One should turn towards the main ocean of the-beautiful-in-the-world so that one may by, contemplation of this Form, bring forth in all their splendor many fair fruits of discourse and meditation in a plenteous crop of philosophy.
Is it not also true that no physician, in so far as he is a physician, considers or enjoins what is for the physician's interest, but that all seek the good of their patients? For we have agreed that a physician strictly so called, is a ruler of bodies, and not a maker of money, have we not?
If one sins against the laws of proportion and gives something too big to something too small to carry it - too big sails to too small a ship, too big meals to too small a body, too big powers to too small a soul - the result is bound to be a complete upset. In an outburst of hubris the overfed body will rush into sickness, while the jack-in-office will rush into the unrighteousness that hubris always breeds.