"Subconsciously there are many people you hate.”“Consciously, sir, consciously,” Yossarian corrected in an effort to help. “I hate themconsciously."

"There were many principles in which Clevinger believed passionately. He was crazy."

"Hungry Joe was crazy, and no one knew it better than Yossarian, who did everything he could to help him. Hungry Joe just wouldn’t listen to Yossarian. Hungry Joe just wouldn’t listen because he thought Yossarian was crazy"

"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."

"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."

"There was only one catch and that was Catch22, 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."

"There's a rule saying I have to ground anyone who's crazy ... There's a catch. Catch-22. Anyone who wants to get out of combat duty isn't really crazy."

"As always occurred when he quarreled over principles in which he believed passionately, he would end up gasping furiously for air and blinking back bitter tears of conviction. There were many principles in which Clevinger believed passionately. He was crazy."