Oh, they're there all right," Orr had assured him about the flies in Appleby's eyes after Yossarian's fist fight in the officers' club, "although he probably doesn't even know it. That's why he can't see things as they really are."

"How come he doesn't know it?" inquired Yossarian.

"Because he's got flies in his eyes," Orr explained with exaggerated patience. "How can he see he's got flies in his eyes if he's got flies in his eyes?

Autor: Joseph Heller