Crime and Punishment by Part 3 Chapter 6 Page 18

Both withdrew carefully and closed the door. Another half-hour passed. Raskolnikov opened his eyes, turned on his back again, clasping his hands behind his head.

“Who is he? Who is that man who sprang out of the earth? Where was he, what did he see? He has seen it all, that’s clear. Where was he then? And from where did he see? Why has he only now sprung out of the earth? And how could he see? Is it possible? Hm...” continued Raskolnikov, turning cold and shivering, “and the jewel case Nikolay found behind the door — was that possible? A clue? You miss an infinitesimal line and you can build it into a pyramid of evidence! A fly flew by and saw it! Is it possible?” He felt with sudden loathing how weak, how physically weak he had become. “I ought to have known it,” he thought