"And if you do go so far as to slip up around humans, you cannot be squeamish about it. The Volturi won't stop at killing you, they'll mop up your loose ends too, and it's no good hiding people, one of them can download your whole brain with a touch. They will know if you've ever sparkled or lifted a car or moved too fast in front of a human, and you are not equipped to manage newborns of your own right now."