Men nowhere, east or west, live yet a natural life, round which the vine clings, and which the elm willingly shadows. Man would desecrate it by his touch, and so the beauty of the world remains veiled to him. He needs not only to be spiritualized, but naturalized, on the soil of earth.
 Henry David Thoreau, A Week on the Concord and Merrimack Rivers (1849). copy citation

Context

“But behind the sheaves, and under the sod, there lurks a ripe fruit, which the reapers have not gathered, the true harvest of the year, which it bears forever, annually watering and maturing it, and man never severs the stalk which bears this palatable fruit. Men nowhere, east or west, live yet a natural life, round which the vine clings, and which the elm willingly shadows. Man would desecrate it by his touch, and so the beauty of the world remains veiled to him. He needs not only to be spiritualized, but naturalized, on the soil of earth. Who shall conceive what kind of roof the heavens might extend over him, what seasons minister to him, and what employment dignify his life! Only the convalescent raise the veil of nature. An immortality in his life would confer immortality on his abode.” source