Quote 7
Mother: As long as you live, that boy is alive. God does not let a son be killed by his father. Now you see, don't you? Now you see. (2.519)
Kate needs God (and horoscopes) to understand how her and her husband's actions make sense in the world.
Quote 8
Mother: Why must you make believe you hate us? Is that another principle? – that you have to hate us? You don't hate us, George, I know you, you can't fool me, I diapered you. (2.381)
Kate is very sly, very manipulative. With her magnetic maternal power, she almost successfully coaxes George into forgetting about the whole thing.
Quote 9
Mother: He hasn't been laid up in fifteen years…
Keller: Except my flu during the war.
Mother: Huhh?
Keller: My flu, when I was sick during… the war. (2.448-451)
Whoops. George smells Kate's misstep right away. The Kellers' enthusiastic attempts at healing this rift crash and burn.