What Is Catch-22?

Yossarian...decided right then and there to go crazy.
"You're wasting your time," Doc Daneeka was forced to tell him.
"Can you ground someone who's crazy?"
"Oh, sure. I have to. There's a rule saying I have to ground anyone who's crazy."
"Then why don't you ground me? I'm crazy. Ask Clevinger."
"Clevinger? Where is Clevinger? You find Clevinger and I'll ask him."
"Then ask any of the others. They'll tell you how crazy I am."
"They're crazy."
"Then why don't you ground them?"
"Why don't they ask me to ground them?"
"Because they're crazy, that's why."
"Of course they're crazy," Doc Daneeka replied. "I just told you they're crazy, didn't I? And you can't let crazy people decide whether you're crazy or not, can you?"
Yossarian looked at him soberly and tried another approach. "Is Orr crazy?"
"He sure is," Doc Daneeka said.
"Can you ground him?"
"I sure can. But first he has to ask me to. That's part of the rule."
"Then why doesn't he ask you to?"
"Because he's crazy," Doc Daneeka said. "He has to be crazy to keep flying combat missions after all the close calls he's had. Sure, I can ground Orr. But first he has to ask me to."
"That's all he has to do to be grounded?"
"That's all. Let him ask me."
"And then you can ground him?" Yossarian asked.
"No. Then I can't ground him."
"You mean there's a catch?"
"Sure there's a catch," Doc Daneeka replied. "Catch-22. Anyone who wants to get out of combat duty isn't really crazy."
There was only one catch and that was Catch-22, which specified that a concern for one's own 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 then 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.
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 that he saw it all, just the way he was never quite sure about good modern art or the flies Orr saw in Appleby's eyes. He had Orr's word to take for the flies in Appleby's eyes.
"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?"
It made as much sense as anything else, and Yossarian was willing to give Orr the benefit of the doubt because Orr was from the wilderness outside New York City and knew so much more about wildlife than Yossarin did, and because Orr, unlike Yossarian's mother, father, sister, brother, aunt, uncle-in-law, teacher, spiritual leader, legislator, neighbor and newspaper, had never lied to him about anything crucial before.