Why might Isabel mean when she thinks “tyrants beware” , why did she take a piece of the statue

Isabel thinks of “tyrants beware” to represent her hope of turning the corner and taking revenge on those who oppressed her through her success and strength in being resilient to everything imposed on her. She takes a piece of the statute to prove the actions taken by her, showing that she was present at the place and acted as necessary.

Explanation:

"Chains" by Laurie Halse Anderson tells the story of Isabel, a slave, subjected to the most diverse abuses propagated by her "masters" who becomes a government spy and works in a secret way to get her freedom, help those who helped her and harming those who oppressed her, the tyrannies, who will need to be careful in the face of her willpower, determination and resilience in achieving her goals, even if she suffers.

write it down

then read over it

then trun it in