This allegory, I said, you may now append to the previous argument; the prison is the world of sight, the light of the fire is the sun, the ascent and vision of the things above you may truly regard as the upward progress of the soul into the intellectual world; that is my poor belief, to which, at your desire, I have given expression. Whether I am right or not God only knows; but, whether true or false, my opinion is that in the world of knowledge the idea of good appears last of all, and is seen only with an effort; and, when seen, is inferred also to be the universal author of all things beautiful and right, parent of light and the lord of light in his world, and the source of truth and reason in the other; this is the first great cause which he who would act rationally either in public or private life must behold. I agree, he said, as far as I am able to understand you. I should like to have your agreement in another matter I said. For I would not have you marvel that those who attain to this beatific vision are unwilling to descend to human affairs; but their souls are ever hastening into the upper world in which they desire to dwell; and this is very natural, if our allegory may be trusted. Certainly, that is quite natural. And is there anything surprizing in one who passes from divine contemplation to human things, misbehaving himself in a ridiculous manner; if, while his eyes are blinking and before he has become accustomed to the darkness visible, he is compelled to fight in courts of law, or in other places, about the images or shadows of images of justice, and is endeavoring to meet the conceptions of those who have never yet seen the absolute justice? There is nothing surprizing in that, he replied. Any one who has common sense will remember that the bewilderments of the eyes are of two kinds, and arise from two causes, either from coming out of the light or from going into the light, which is true of the mind's eye, quite as much as of the bodily eye; and he who remembers this when he sees the soul of any one whose vision is perplexed and weak will not be too ready to laugh; he will first ask whether that soul has come out of the brighter life, and is unable to see because unaccustomed to the dark, or having turned from darkness to the day is dazzled by excess of light. And then he will count the one happy in his condition and state of being, and he will pity the other; or, if he have a mind to laugh at the soul which comes from below into the light there will be more reason in this than in the laugh which greets the other from the den. That, he said, is a very just remark. But if this is true, then certain professors of education must be mistaken in saying that they can put a knowledge into the soul which was not there before, like giving eyes to the blind. Yes, that is what they say, he replied.