In the text it says "Oh! But he was a tight-fisted hand at the grindstone, Scrooge! a squeeziing, wrenching, gasping, scraping, clutching, covetous old sinner! Hard and sharp as flint, from which no steel had ever stuck out generous fire; secret, and self-contained, and solitaryas an oyster. The cold within him froze his old features, nipped his pointed nose, shrivelled his cheek, stiffened his gait; made his eyes red, his thin lips blue; and spoke out shrewdly in his grating voice."