Look at those spars, how they creak and groan with every heave of the long glassy swell. How those sails flap, and thunder, and rage, with useless outcries and struggles—only because they are idle. Let the wind take them, and they will be steady, silent in an instant—their deafening dissonant grumbling exchanged for the soft victorious song of the breeze through the rigging, musical, self-contented, as of bird on bough. So it is through life; there is no true rest but labour. “No true misery,” as Carlyle says, “but in that of not being able to work.” Some may call it a pretty conceit. I call it a great worldwide law, which reaches from earth to heaven. Whatever the Preacher may have thought it in a moment of despondency, what is it but a blessing that “sun, and wind, and rivers, and ocean,” as he says, and “all things, are full of labour—man cannot utter it.” This sea which bears us would rot and poison, did it not sweep in and out here twice a day in swift refreshing current; nay, more, in the very water which laps against our bows troops of negro girls may have hunted the purblind shark in West Indian harbours, beneath glaring white-walled towns, with their rows of green jalousies, and cocoa-nuts, and shaddock groves. For on those white sands there to the left, year by year, are washed up foreign canes, cassia beans, and tropic seeds; and sometimes, too, the tropic ocean snails, with their fragile shells of amethystine blue, come floating in mysteriously in fleets from the far west out of the passing Gulf Stream, where they have been sailing out their little life, never touching shore or ground, but buoyed each by his cluster of air-bubbles, pumped in at will under the skin of his tiny foot, by some cunning machinery of valves—small creatures truly, but very wonderful to men who have learned to reverence not merely the size of things, but the wisdom of their idea, and raising strange longings and dreams about that submarine ocean-world which stretches, teeming with richer life than this terrestrial one, away, away there westward, down the path of the sun, toward the future centre of the world’s destiny. Wonderful ocean-world! three-fifths of our planet! Can it be true that no rational beings are denizens there? Science is severely silent—having as yet seen no mermaids: our captain there forward is not silent—if he has not seen them, plenty of his friends have. The young man here has been just telling me that it was only last month one followed a West Indiaman right across the Atlantic. “For,” says he, “there must be mermaids, and such like. Do you think Heaven would have made all that water there only for the herrings and mackerel?”