For a companion, I require one who will make an equal demand on me with my own genius. Such a one will always be rightly tolerant. It is suicide, and corrupts good manners, to welcome any less than this. I value and trust those who love and praise my aspiration rather than my performance. If you would not stop to look at me, but look whither I am looking, and farther, then my education could not dispense with your company.
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, p. 297, Houghton Mifflin (1906).