Questão 226017

One of the best-loved stories of all time, "To Kill a Mockingbird", is a 1960 novel by the author Harper Lee and its main themes are racism, injustice and innocence.

From this story, analyze the following excerpt: "Mockingbirds don't do one thing but make music for us to enjoy [...] they don't do one thing but sing their hearts out for us. That's why it's a sin to kill a mockingbird."

When the author says that "it's a sin to kill a mockingbird", it means that: