“When two people are at one in their inmost hearts, they shatter even the strength of iron or bronze.”

“Carefully she took hold of the chain dangling from it, the jade pendant he had given her so long ago. The inscription on the back still gleamed as if new:When two people are at one in their most inmost hearts, they shatter even the strength of iron or bronze."You remember, that you left it with me?" she said. "I've never taken it off."He closed his eyes. His lashes lay against his cheeks, long and fine. "All these years," he said, and his voice was a low whisper, and it was not the voice of the boy he had been once, but it was still a voice she loved. "All these years, you wore it? I never knew.”

“I've got plenty.” Isabelle smiled, kicking her feet up so that her anklets jingled like Christmas bells. "These, for instance. The left one is gold, which is poisonous to demons, and the right one is blessed iron, in case I run across any unfriendly vampires or even faeries, faeries hate iron. They both have strength runes carved into them, so I can pack a hell of a kick. ""Demon hunting and fashion," Clary said. "I never would have thought they went together.”

“And maybe you should stop pitying yourself,” he said. “Most people are lucky to have even one great love in their life. You have found two.”

“When two people tell the same lie, the are working together”

“One can love two children. But your heart can be given romantic love to only a single other, said Woolsey.”

“They say you cannot love two people equally at once,” she said. “And perhaps for others that is so. But you and Will—you are not like two ordinary people, two people who might have been jealous of each other, or who would have imagined my love for one of them diminished by my love of the other. You merged your souls when you were both children. I could not have loved Will so much if I had not loved you as well. And I could not love you as I do if I had not loved Will as I did.”