"They didn't mind hurting yours."
"They didn't mean to. They thought they were generous."
"Which only shows...."
"But he's all right. Hildred, he's a big man."
"And you really think he's your father, Tom?"
"I know he is. Everything makes me sure of it."
"Well, then, if he's your father, she must be your mother."
"Yes, but I don't go that far. It isn't what must be that I think about; it's what is."
She persisted in her logic. "And Tad and Lily must be your brother and sister."