I lived with the Frankensteins. I was not one. And I never forgot it.
-- Elizabeth (Part One: Three)

Importance: This quote establishes Elizabeth’s connection to the Frankensteins. This is very important, as the lack of a formal adoption allows her to marry Victor later in the novel. It also shows Elizabeth’s bitterness toward the family (with the exception of Victor), as she believes she deserved to be adopted for everything she did for them and Victor. Furthermore, this sentence foreshadows the idea that Elizabeth’s past is much more important than she knows at this point in the novel.

I knew she would forgive me. And I did not regret what I had done… our success would wash away all my manipulations to get here.
-- Elizabeth (about Justine) (Part One : Five)

Importance: This moment establishes that Elizabeth, while manipulative in person, is very reliable as a narrator. She is willing to tell the reader exactly what she is thinking even...