He then examined the cavern through which the waters of the lake were discharged; and, looking down, at a time when the sun shone strongly upon its mouth, he discovered it to be full of broken rocks, which, though they permitted the stream to flow through many narrow passages, would stop any body of solid bulk. He returned discouraged and dejected; but, having now known the blessing of hope, resolved never to despair.
In these fruitless searches he spent ten months. The time, however, passed cheerfully away: in the morning he rose with new hope, in the evening applauded his own diligence, and in the night slept sound after his fatigue. He met a thousand amusements, which beguiled his labour, and diversified his thoughts. He discerned the various instincts of animals, and properties of plants, and found the place replete with wonders, of which he purposed to solace himself with the contemplation, if he should never be able to accomplish his flight; rejoicing that his endeavours, though yet unsuccessful, had supplied him with a source of inexhaustible inquiry.
But his original curiosity was not yet abated; he resolved to obtain some knowledge of the ways of men. His wish still continued, but his hope grew less. He ceased to survey any longer the walls of his prison, and spared to search, by new toils, for interstices which he knew could not be found; yet determined to keep his design always in view, and lay hold on any expedient that time should offer.
CHAP. VI.
A DISSERTATION ON THE ART OF FLYING.
Among the artists that had been allured into the happy valley, to labour for the accommodation and pleasure of its inhabitants, was a man eminent for his knowledge of the mechanick powers, who had contrived many engines, both of use and recreation. By a wheel, which the stream turned, he forced the water into a tower, whence it was distributed to all the apartments of the palace. He erected a pavilion in the garden, around which he kept the air always cool by artificial showers. One of the groves, appropriated to the ladies, was ventilated by fans, to which the rivulet, that ran through it, gave a constant motion; and instruments of soft musick were placed at proper distances, of which some played by the impulse of the wind, and some by the power of the stream.
This artist was, sometimes, visited by Rasselas, who was pleased with every kind of knowledge, imagining that the time would come, when all his acquisitions should be of use to him in the open world. He came one day to amuse himself in his usual manner, and found the master busy in building a sailing chariot: he saw that the design was practicable upon a level surface, and, with expressions of great esteem, solicited its completion. The workman was pleased to find himself so much regarded by the prince, and resolved to gain yet higher honours. "Sir," said he, "you have seen but a small part of what the mechanick sciences can perform. I have been long of opinion, that instead of the tardy conveyance of ships and chariots, man might use the swifter migration of wings; that the fields of air are open to knowledge, and that only ignorance and idleness need crawl upon the ground."
This hint rekindled the prince's desire of passing the mountains: having seen what the mechanist had already performed, he was willing to fancy that he could do more; yet resolved to inquire further, before he suffered hope to afflict him by disappointment. "I am afraid," said he to the artist, "that your imagination prevails over your skill, and that you now tell me rather what you wish, than what you know. Every animal has his element assigned him: the birds have the air, and man and beasts the earth."—"So," replied the mechanist, "fishes have the water, in which, yet, beasts can swim by nature, and men by art. He that can swim needs not despair to fly: to swim is to fly in a grosser fluid, and to fly is to swim in a subtler. We are only to proportion our power of resistance to the different density of matter through which we are to pass. You will be, necessarily, upborne by the air, if you can renew any impulse upon it, faster than the air can recede from the pressure."
"But the exercise of swimming," said the prince, "is very laborious; the strongest limbs are soon wearied; I am afraid, the act of flying will be yet more violent, and wings will be of no great use, unless we can fly further than we can swim."
"The labour of rising from the ground," said the artist, "will be great, as we see it in the heavier domestick fowls; but as we mount higher, the earth's attraction, and the body's gravity, will be gradually diminished, till we shall arrive at a region, where the man will float in the air without any tendency to fall; no care will then be necessary but to move forwards, which the gentlest impulse will effect. You, sir, whose curiosity is so extensive, will easily conceive with what pleasure a philosopher, furnished with wings, and hovering in the sky, would see the earth, and all its inhabitants, rolling beneath him, and presenting to him, successively, by its diurnal motion, all the countries within the same parallel. How must it amuse the pendent spectator to see the moving scene of land and ocean, cities and deserts! To survey, with equal security, the marts of trade, and the fields of battle; mountains infested by barbarians, and fruitful regions gladdened by plenty, and lulled by peace! How easily shall we then trace the Nile through all its passage; pass over to distant regions, and examine the face of nature, from one extremity of the earth to the other!"