In chapter 19, Michael and his dwarf roommate are walking through the campus when a taller student makes a derogatory comment. Archie counsels Michael on how to respond:
“For out of the abundance of the heart, the mouth speaks,” Archie said, glancing at Michael.
“What does that mean?”
“It means that you can discern anyone’s true nature by the things they say. What’s really inside of them will eventually come out. So you can see everyone’s deficiency, even if it isn’t physical.”
The Bible verse is Matthew 12:34.