De aves y libros, que son lo mismo

"Your father's right", she said. "Mockingbirds don't do one thing but make music for us to enjoy. They don't eat up people's gardens, don't nest in corncribs, they don't do one thing but sing their hearts out for us. That's why it's a sin to kill a mockingbird."

(...)

"But Cal," Jem protested, "you don't look even near as old as Atticus."
"Colored folks don't show their ages so fast," she said.
"Maybe because they can't read."

(...)

"Cal," I asked, "why do you talk nigger-talk to the-- to your folks when you know it's not right?"
"Well, in first place I'm black."
"That doesn't mean you hafta talk that way when you know better," said Jem.

[Harper Lee (1926)]