At length, one day, a venerable man of a noble presence was brought to the tower, with soldiers to guard him and slaves to attend him. The prince was glad of his presence, though at first he seldom opened his lips, and it was manifest that confinement made him miserable. With restless feet he would wander from window to window of the stone tower, and mount from story to story; but mount as high as he would there was still nothing to be seen but the vast, unvarying plain, clothed with scanty grass, and flooded with the glaring sunshine; flocks and herds and shepherds moved across it sometimes, but nothing else, not even a shadow, for there was no cloud in the sky to cast one. The old man, however, always treated the prince with respect, and answered his questions with a great deal of patience, till at length he found a pleasure in satisfying his curiosity, which so much pleased the poor young prisoner, that, as a great condescension, he invited him to come out on the roof of the tower and drink sherbet with him in the cool of the evening, and tell him of the country beyond the desert, and what seas are like, and mountains, and towns. "I have learnt much from my attendants, and know this world pretty well by hearsay," said the prince, as they reclined on the rich carpet which was spread on the roof. The old man smiled, but did not answer; perhaps because he did not care to undeceive his young companion, perhaps because so many slaves were present, some of whom were serving them with fruit, and others burning rich odors on a little chafing-dish that stood between them. "But there are some words to which I never could attach any particular meaning," proceeded the prince, as the slaves began to retire, "and three in particular that my attendants cannot satisfy me upon, or are reluctant to do so." "What words are those, my prince?" asked the old man. The prince turned on his elbow to be sure that the last slave had descended the tower stairs, then replied: "O man of much knowledge, the words are these--Labor, and Liberty, and Gold." "Prince," said the old man, "I do not wonder that it has been hard to make thee understand the first, the nature of it, and the cause why most men are born to it; as for the second, it would be treason for thee and me to do more than whisper it here, and sigh for it when none are listening; but the third need hardly puzzle thee; thy hookah[4] is bright with it; all thy jewels are set in it; gold is inlaid in the ivory of thy bath; thy cup and thy dish are of gold, and golden threads are wrought into thy raiment." [Footnote 4: _Hookah_: a kind of pipe for smoking tobacco, used in Eastern Europe and Asia.]