How we cite our quotes: Citations follow this format: (Chapter.Paragraph)
Quote #19
[Sergeant Knight:] "Doc Daneeka's up there, too."
"I'm right here," contended Doc Daneeka, in a strange and troubled voice, darting an anxious look at Sergeant Knight. (30.38-39)
It is implied that Yossarian is a secret cause of the confusion regarding Doc Daneeka's "death," because Yossarian was the one who falsely logged Doc Daneeka's flight hours. This act of deception has serious repercussions for Doc Daneeka.
Quote #20
But to abandon Orr's tent would be to abandon Orr, who would have been spurned and humiliated clannishly by these four simple-minded officers waiting to move in. (32.10)
Yossarian is faithful to Orr's memory and still thinks of him as a living being. Yossarian imagines how Orr would have suffered had he been alive to see these boisterous young soldiers. In this way, Yossarian demonstrates continued loyalty to Orr.
Quote #21
He [Nately] kept blushing giddily in shy embarrassment and saying he was sorry when Yossarian came over to apologize for hitting him. Yossarian felt terrible; he could hardly bear to look at Nately's battered countenance […]. (34.13)
Yossarian's true affection for and friendship with Nately makes him embarrassed that he did such a horrible thing to his friend. Yossarian shows his integrity by apologizing to Nately and trying to keep their friendship alive.