Jace Wayland (to Clary): There was a boy… and his father bought him a falcon for his sixth birthday. His father told him to tame the bird. Make it obedient. And the boy would spend every day with that falcon. It would scratch at him. Make him bleed. But eventually… he earned its trust. He brought the bird to his father, to show him that the bird would come back to him. He thought his father would be proud. His father took the falcon and snapped its neck. Yes… the boy was devastated. But he realized his father was right. He was told to tame the bird… not to love it. That’s why you have to listen to your head. If I listened to my heart… I’d never be able to do my job. Third rule of Shadowhunting… emotions cloud judgment.