It is in his sunniest time, his first and richest existence, in his day-dreams of youth, that man has sometimes the good fortune to forget that he is a man, a slave to hard fate, and chained to earth. Behold, yonder, him who flies abroad, who hovers, who dominates over the world, who swims in the sunbeam; he enjoys the ineffable felicity of embracing at a glance an infinity of things which yesterday he could only see one by one. Obscure enigma of detail, suddenly made luminous to him who perceives its unity! To see the world beneath one's self, to embrace, to love it! How divine, how lofty a dream! Do not wake me, I pray you, never wake me! But what is this? Here again are day, uproar, and labour; the harsh iron hammer, the ear-piercing bell with its voice of steel, dethrone and dash me headlong; my wings are rent. Dull earth, I fall to earth; bruised and bent, I return to the plough.
When, at the close of the last century, man formed the daring idea of giving himself up to the winds, of mounting in the air without rudder, or oar, or means of guidance, he proclaimed aloud that at length he had secured his pinions, had eluded nature, and conquered gravitation. Cruel and tragical catastrophes gave the lie to this ambition. He studied the economy of the bird's wing, he undertook to imitate it; rudely enough he counterfeited its inimitable mechanism. We saw with terror, from a column of a hundred feet high, a poor human bird, armed with huge wings, dart into air, wrestle with it, and dash headlong into atoms.
The gloomy and fatal machine, in its laborious complexity, was a sorry imitation of that admirable arm (far superior to the human arm), that system of muscles, which co-operate among themselves in so vigorous and lively a movement. Disjointed and relaxed, the human wing lacked especially that all-powerful muscle which connects the shoulder to the chest (the _humerus_ to the _sternum_), and communicates its impetus to the thunderous flight of the falcon. The instrument acts so directly on the mover, the oar on the rower, and unites with him so perfectly that the martinet, the frigate-bird, sweeps along at the rate of eighty leagues an hour, five or six times swifter than our most rapid railway trains, outstripping the hurricane, and with no rival but the lightning.