Book excerpt: "A certain king built himself a palace and summoned two persons to decorate it for him. The king divided his palace into two parts, putting one person in charge of one half and the second in charge of the other. One of the persons decorated his part of the palace with beautiful paintings of birds and animals. But the second person painted his half of the palace with black dye which was reflecting everything like a mirror. When the king came to judge the two decorations, everything he had seen in the first person's part he also saw in the second's part, since it was reflected in its black dye like in a mirror. Not only that, but even all the king could wish to put in the first half of his palace appeared in the second half. This found favor in the eyes of the king"--