Quote 1: “Nothing is so painful to the human mind as a great and sudden change.”
Quote 2: “If I cannot inspire love, I will cause fear!”
Quote 3: “I ought to be thy Adam, but I am rather the fallen angel...”
Quote 4: “I was benevolent and good; misery made me a fiend. Make me happy, and I shall again be virtuous.”
Quote 5: “Beware; for I am fearless, and therefore powerful.”
Quote 6: “Life, although it may only be an accumulation of anguish, is dear to me, and I will defend it.”
Quote 7: “... the companions of our childhood always possess a certain power over our minds which hardly any later friend can obtain.”
Quote 8: “How mutable are our feelings, and how strange is that clinging love we have of life even in the excess of misery!”
Quote 9: “It is true, we shall be monsters, cut off from all the world; but on that account we shall be more attached to one another.”
Quote 10: “The world to me was a secret, which I desired to discover; to her it was a vacancy, which she sought to people with imaginations of her own.”
Quote 11: “The fallen angel becomes a malignant devil. Yet even that enemy of God and man had friends and associates in his desolation; I am alone.”
Quote 12: “I could not understand why men who knew all about good and evil could hate and kill each other.”
- Mary Wollstonecraft Shelley, Frankenstein Watch Frankenstein - Mary Shelley (1818) summary in the linked video