“What do people generally say?” muttered Svidrigaïlov, as though speaking to himself, looking aside and bowing his head. “They say, ‘You are ill, so what appears to you is only unreal fantasy.’ But that’s not strictly logical. I agree that ghosts only appear to the sick, but that only proves that they are unable to appear except to the sick, not that they don’t exist.”

“Nothing of the sort,” Raskolnikov insisted irritably.