Difference between jane eyer and berthamason

Bertha Mason is the polar opposite of Jane; she's tiny and ordinary looking, outspoken but proper, cultured and refined, and extremely intelligent. Unfortunately, she is also irrational and beastly...... she's a monster. Feeling threatened by Jane doesn't help any, and her insanity continuously becomes more apparent as we read.

Jane, on the other hand is strong, capable, and independent. She is sensible but passionate, amd most important of all she is a survivor.