"Samuel Spade’s jaw was long and bony, his chin a jutting v under the more flexible v of his mouth. His nostrils curved back to make another, smaller v. His yellow-grey eyes were horizontal. The v motif was picked up again by thickish brows rising outward from twin creases above a hooked nose, and his pale brown hair grew down-from high flat temples-in a point on his forehead. He looked rather pleasantly like a blonde Satan."

“The cheaper the crook, the gaudier the patter.”

“But where knowledge of trickery is evenly distributed, honesty not infrequently prevails.”

“Did it ever occur to you that everybody is more or less afraid of nearly everything, and that courage isn't a damn thing but a habit of not dodging things because you're afraid of them?”

“She was tall and pleasantly slender, without angularity anywhere. Her body was erect and high-breasted, her legs long, her hands and feet narrow. She wore two shades of blue that had been selected because of her eyes. The hair curling from under her blue hat was darkly red, her full lips more brightly red. White teeth glistened in the crescent her timid smile made.”

“If a man says a thing often enough, he is very likely to acquire some sort of faith in it sooner or later.”

“She keeps trying and you’ve got to be careful or you’ll find yourself believing her, not because she seems to be telling the truth, but simply because you’re tired of disbelieving her.”