“I used to think being a good warrior meant not caring,” he said. “About anything, myself especially. I took every risk I could. I flung myself in the path of demons. I think I gave Alec a complex about what kind of fighter he was, just because he wanted to live.” Jace smiled unevenly. “And then I met you. You were a mundane. Weak. Not a fighter. Never trained. And then I saw how much you loved your mother, loved Simon, and how you’d walk into hell to save them. You did walk into that vampire hotel. Shadowhunters with a decade of experience wouldn’t have tried that. Love didn’t make you weak, it made you stronger than anyone I’d ever met. And I realized I was the one who was weak.” –Jace pg. 531-532”

“I always thought love made you stupid. Made you weak. A bad Shadowhunter. 'To love is to destroy.'I believed that[...]I used to think being a good warrior meant not caring,[...] And then I met you. You were a mundane. Weak. Not a fighter. Never trained[...] Love didn't make you weak, it made you stronger than anyone I'd ever met. And I realized I was the one who was weak.”

“I think I gave Alec a complex about what kind of fighter he was, just because he wanted to live.”

“And now I’m looking at you,” he said, “and you’re asking me if I still want you, as if I could stop loving you. As if I would want to give up the thing that makes me stronger than anything else ever has. I never dared give much of myself to anyone before – bits of myself to the Lightwoods, to Isabelle and Alec, but it took years to do it – but, Clary, since the first time I saw you, I have belonged to you completely. I still do. If you want me.”

“What would you know about it?" he said. "Love, I mean."Dorothea folded her soft white hands in her lap. "More than you might think," she said. "Didn't I read your tea leaves, Shadowhunter? Have you fallen in love with the wrong person yet?"Jace said, "Unfortunately, Lady of the Haven, my one true love remains myself."Dorothea roared at that. "At least," she said, "you don't have to worry about rejection, Jace Wayland.""Not necessarily. I turn myself down occasionally, just to keep it interesting.”

“I'll walk you back, Jace said. "As for Simon, he can manage his own way back in the dark-can't you Simon?""Of course he can, Alec said indignantly, as if eager to make up for his earlier slighting of Simon. "He's a vampire-and," he added, "I just realized that you were probably joking. Never mind me.”