Alasdair Gray said this quote

“ He looked at them and saw their faces did not fit. The skin on the skulls crawled and twitched like half-solid paste. All the heads in his angle of vision seemed irregular lumps, like potatoes but without a potato’s repose: potatoes with crawling surfaces punctured by holes which opened and shut, holes blocked with coloured jelly or fringed with bone stumps, elastic holes through which air was sucked or squirted, holes secreting salt, wax, spittle and snot. He grasped a pencil in his trouser pocket, wishing it were a knife he could thrust through his cheek and use to carve his face down to the clean bone. But that was foolish. Nothing clean lay under the face. He thought of sectioned brains, palettes, eyeballs and ears seen in medical diagrams and butcher’s shops. He thought of elastic muscle, pulsing tubes, gland sacks full of lukewarm fluid, the layers of cellular and fibrous and granular tissues inside a head. What was felt as tastes, caresses, dreams and thoughts could be seen as a cleverly articulated mass of garbage. ”