Page:1888 Cicero's Tusculan Disputations.djvu/319

 By our labor, that is, by our hands, variety and plenty of food are provided; for, without culture, many fruits, which serve either for preesent or future consumption, would not be produced; besides, we feed on flesh, fish, and fowl, catching some, and bringing up others. We subdue four-footed beasts for our carriage, whose speed and strength supply our slowness and inability. On some we put burdens, on others yokes. We convert the sagacity of the elephant and the quick scent of the dog to our own advantage. Out of the caverns of the earth we dig iron, a thing entirely necessary for the cultivation of the ground. We discover the hidden veins of copper, silver, and gold, advantageous for our use and beautiful as ornaments. We cut down trees, and use every kind of wild and cultivated timber, not only to make fire to warm us and dress our meat, but also for building, that we may have houses to defend us from the heat and cold. With timber likewise we build ships, which bring us from all parts every commodity of life. We are the only animals who, from our knowledge of navigation, can manage what nature has made the most violent—the sea and the winds. Thus we obtain from the ocean great numbers of profitable things. We are the absolute masters of what the earth produces. We enjoy the mountains and the plains. The rivers and the lakes are ours. We sow the seed, and plant the trees. We fertilize the earth by overflowing it. We stop, direct, and turn the rivers: in short, by our hands we endeavor, by our various operations in this world, to make, as it were, another nature.

LXI. But what shall I say of human reason? Has it not even entered the heavens? Man alone of all animals has observed the courses of the stars, their risings and settings. By man the day, the month, the year, is determined. He foresees the eclipses of the sun and moon, and foretells them to futurity, marking their greatness, duration, and precise time. From the contemplation of these things the mind extracts the knowledge of the Gods—a knowledge which produces piety, with which is connected justice, and all the other virtues; from which arises a life of felicity, inferior to that of the Gods in no single particular, except in immortality, which is not absolutely