Who said "I was benevolent and good; misery made me a fiend."?

This quote is attributed to Mary Shelley.

I was benevolent and good; misery made me a fiend. - Mary Shelley

"I was benevolent and good; misery made me a fiend."

Mary Shelley Justice

Novelist English 1797–1851

"Nothing is so painful to the human mind as a great and sudden change."

"Beware; for I am fearless, and therefore powerful."

"Life and death appeared to me ideal bounds, which I should first break through."

"I have crossed oceans of time to find you."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."