“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 any one whose vision is perplexed and weak, will not be too ready to laugh; he will first ask whether that soul of man has come out of the brighter life, and is unable to see because unaccustomed to the dark, or having turned from dakness to the day is dazzled by excess of light. And 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 him who returns from above out of the light into the den. (Included in the introduction to "Flowers for Algernon" by Daniel Keyes)”

“... when someone sees a soul disturbed and unable to see something, he won't laugh mindlessly, but he'll take into consideration whether it has come from a brighter life and is dimmed through not having yet become accustomed to the dark or whether it has come from greater ignorance into greater light and is dazzled by the increased brillance.”

“A sensible man will remember that the eyes may be confused in two ways - by a change from light to darkness or from darkness to light; and he will recognise that the same thing happens to the soul.”

“Whereas, our argument shows that the power and capacity of learning exists in the soul already; and that just as the eye was unable to turn from darkness to light without the whole body, so too the instrument of knowledge can only by the movement of the whole soul be turned from the world of becoming into that of being, and learn by degrees to endure the sight of being, and of the brightest and best of being, or in other words, of the good.”

“Und nicht wahr, wenn man ihn zwänge, in das Licht selbst zu sehen, so würde er Schmerzen an den Augen haben, davonlaufen und sich wieder jenen Schattengegenständen zuwenden, die er ansehen kann, und würde dabei bleiben, diese wären wirklich deutlicher als die, welche er gezeigt bekam?And if he is compelled to look straight at the light, will he not have a pain in his eyes which will make him turn away to take and take in the objects of vision which he can see, and which he will conceive to be in reality clearer than the things which are now being shown to him?”

“Noticing that, he made a trail of the ring, to see if it had that power; and he found that whenever he turned the collet inside, he was invisible, when he turned it outside, visible. After he found this out he managed to be appointed one of the messengers to the king; when he got there, he seduced the king's wife, and with her set upon the king, and killed him, and seized the empire. Then if there could be two such rings, and if the just man put one on and the unjust the other, no one, as it would be thought, would be so adamantine as to abide in the practice of justice, no one could endure to hold back from another's goods and not to touch, when it was in his power to take what he would even out of the market without fear, and to go into any house and lie with anyone he wished, and to kill or set free from prison those he might wish, and to do anything else in the world like a very god. And in doing so he would do just the same as the other; both would go the same way. Surely one would call this a strong proof that no one is just willingly but only under a strong compulsion, believing that it is not a good to him personally; since wherever each thinks he will be able to do injustice, he does injustice.”

“Here's something else I'd like your opinion about," I said. "If he went back underground and sat down again in the same spot, wouldn't the sudden transition from the sunlight mean that his eyes would be overwhelmed by darkness?" "Certainly," he replied. "Now, the process of adjustment would be quite long this time, and suppose that before his eyes had settled down and while he wasn't seeing well, he had once again to compete against those same old prisoners at identifying those shadows. Would he make a fool of himself? Wouldn't they say that he'd come back from his upward journey with his eyes ruined, and that it wasn't even worth trying to go up there? And would they -- if they could -- grab hold of anyone who tried to set them free and take them up there and kill him?”