From Possession, by A.S. Byatt:
As a young man he had been much struck by the story of Wordsworth and his solitary Highland girl; the poet had heard the enchanted singing, taken in exactly as much as he had needed for his own immortal verse, and had refused to hear more. He himself, he had discovered, was different. He was a poet greedy for information, for facts, for details. Nothing was too trivial to interest him; nothing was inconsiderable; he would, if he could, have mapped every ripple on a mudflat and its evidence of the invisible workings of wind and tide. So now his love for this woman, known intimately and not at all, was voracious for information. He learned her. He studied the pale loops of hair on her temples. Their sleek silver-gold seemed to him to have in it a tinge, a hint of greenness, not the copper-green of decay, but a pale sap-green of vegetable life, streaked into the hair like the silvery bark of young trees, or green shadows in green tresses of young hay. And her eyes were green, glass-green, malachite green, the cloudy green of seawater perturbed and carrying a weight of sand. The lashes over them silver, but thick enough to be visibly present. The face not kind. There was no kindness in the face. It was cut clean but not fine – strong-boned rather, so that temples and slanting cheeks were pronounced and solid-shadowed, the shadows bluish, which in imagination he always touched with green too, but it was not so.
If he loved the face, which was not kind, it was because it was clear and quick and sharp.
He saw, or thought he saw, how those qualities had been disguised or overlaid by more conventional casts of expression – an assumed modesty, an expedient patience, a disdain masking itself as calm. At her worst – oh, he saw her clearly, despite her possession of him – at her worst she would look down and sideways and smile demurely, and this smile would come near a mechanical simper, for it was an untruth, it was a convention, it was her brief constricted acknowledgement of the world’s expectations. He had seen immediately, it seemed to him, what in essence she was, sitting at Crabb Robinson’s breakfast table, listening to men disputing, thinking herself an unobserved observer. Most men, he judged, if they had seen the harshness and fierceness and absolutism, yes, absolutism, of that visage, would have stood back from her. She would have been destined to be loved only by timid weaklings, who would have secretly hoped she would punish or command them, or by simpletons, who supposed her chill look of delicate withdrawal to indicate a kind of female purity, which all desired, in those days, at least ostensibly. But he had known immediately that she was for him, she was to do with him, as she really was or could be, or in freedom might have been.