In love and friendship the imagination is as much exercised as the heart; and if either is outraged the other will be estranged. It is commonly the imagination which is wounded first, rather than the heart,—it is so much the more sensitive.
Henry David Thoreau (1817–1862), U.S. philosopher, author, naturalist. Essay on "Love" in letter, September 1852, to Harrison Blake, in The Writings of Henry David Thoreau, vol. 6, pp. 200-201, Houghton Mifflin (1906).