“There was only one catch and that was Catch-22, which specified that a concern for one's safety in the face of dangers that were real and immediate was the process of a rational mind. Orr was crazy and could be grounded. All he had to do was ask; and as soon as he did, he would no longer be crazy and would have to fly more missions. Orr would be crazy to fly more missions and sane if he didn't, but if he was sane he had to fly them. If he flew them he was crazy and didn't have to; but if he didn't want to he was sane and had to. Yossarian was moved very deeply by the absolute simplicity of this clause of Catch-22 and let out a respectful whistle."That's some catch, that Catch-22," he observed."It's the best there is," Doc Daneeka agreed.”

“Orr would be crazy to fly more missions and sane if he didn't,but if he was sane he had to fly them. If he flew them he was crazy and didn't have to; but if he didn't want to he was sane and had to. That's some catch, that catch-22.”

“Yossarian was moved very deeply by the absolute simplicity of this clause of Catch-22 and let out a respectful whistle.'That's some catch, that Catch-22,' he observed.'It's the best there is,' Doc Daneeka agreed.Yossarian saw it clearly in all its spinning reasonableness. There was an elliptical precision about its perfect pairs of parts that was graceful and shocking, like good modern art, and at times Yossarian wasn't quite sure he saw it at all, just the way he was never quite sure about good modern art or about the flies Orr saw in Appleby's eyes. he had Orr's word to take for Appleby's eyes.”

“That's some catch, that Catch-22," he observed.It's the best there is," Doc Daneeka agreed.”

“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?”

“There was one catch, and that was Catch-22.”

“After he made up his mind to spend the rest of the war in the hospital, Yossarian wrote letters to everyone he knew saying that he was in the hospital but never mentioning why. One day he had a better idea. To everyone he knew he wrote that he was going on a very dangerous mission. "They asked for volunteers. It's very dangerous, but someone has to do it. I'll write you the instant I get back." And he had not written anyone since.”