Man tames Nature only that he may at last make her more free even than he found her, though he may never yet have succeeded.
 Henry David Thoreau, A Week on the Concord and Merrimack Rivers (1849). copy citation

Context

“Nature is prepared to welcome into her scenery the finest work of human art, for she is herself an art so cunning that the artist never appears in his work. Art is not tame, and Nature is not wild, in the ordinary sense. A perfect work of man’s art would also be wild or natural in a good sense. Man tames Nature only that he may at last make her more free even than he found her, though he may never yet have succeeded. With this propitious breeze, and the help of our oars, we soon reached the Falls of Amoskeag, and the mouth of the Piscataquoag, and recognized, as we swept rapidly by, many a fair bank and islet on which our eyes had rested in the upward passage.” source