Some carpenters were at work here mending a scow on the green and sloping bank. The strokes of their mallets echoed from shore to shore, and up and down the river, and their tools gleamed in the sun a quarter of a mile from us, and we realized that boat-building was as ancient and honorable an art as agriculture, and that there might be a naval as well as a pastoral life. The whole history of commerce was made manifest in that scow turned bottom upward on the shore. Thus did men begin to go down upon the sea in ships; quaeque diu steterant in montibus altis, Fluctibus ignotis insultav[e]re carinae; "and keels which had long stood on high mountains careered insultingly (insultav[e]re) over unknown waves."
Henry David Thoreau (1817–1862), U.S. philosopher, author, naturalist. A Week on the Concord and Merrimack Rivers (1849), in The Writings of Henry David Thoreau, vol. 1, pp. 227-228, Houghton Mifflin (1906).
At the end of his translation of the Latin, Thoreau adds a footnote denoting its source: "Ovid, Met. I. 133."