"But the paradox of their success is that most modern readers are unaware of the overwhelming obstacles both women had to overcome. Without knowing the history of the era, the difficulties Wollstonecraft and Shelley faced are largely invisible, their bravery incomprehensible. Both women were what Wollstonecraft termed "outlaws." Not only did they write world-changing books, they broke from the strictures that governed women's conduct, not once but time and again, profoundly challenging the moral code of the day. Their refusal to bow down, to subside and surrender, to be quiet and subservient, to apologize and hide, makes their lives as memorable as the words they left behind. They asserted their right to determine their own destinies, starting a revolution that has yet to end."