“[T]here was something in her that was higher than her surroundings—there was the brilliance of a diamond of the first water amidst glass. This brilliance shone from her lovely, indeed unfathomable, eyes. . . . Looking into those eyes, everyone thought he knew her thoroughly and, knowing, could not but love her. ”

—Leo Tolstoy, Anna Karenina, 1877, translated by Richar Pevear and Larissa Volokhonsky, 2000.