The truth is that I love Simon like I should love you, and I wish that he was my brother and you weren't." - Clary

Jem, Cecily thought, with a pang in her heart. Her brother had always looked to him as a kind of North Star, a compass that would ever point him toward the right decision. She had never quite thought of her brother as lucky before, and certainly would not have expected to do so today, and yet-and yet in a way he had been. To always have someone to turn to like that, and not to worry constantly that one was looking to the wrong stars.

I am a man, and men do not drink pink drinks. Now, be gone, woman, and fetch me something brown." Jace said. "Brown?" said Isabelle. "Yes. Brown. It's a manly color. See? Alec is wearing it." Jace said. "Well, it was black but it faded." Alec said. "Well, I can always fix it up with something sparkly," Magnus said, holding a sparkley headband. "Resist the urge, Alec, resist the urge." Simon said.

Well, I’m not kissing the mundane," said Jace. "I’d rather stay down here and rot." "Forever?" said Simon. "Forever’s an awfully long time." Jace raised his eyebrows. "I knew it," he said. "You want to kiss me, don’t you?

It's so dark," she said lamely. "You want me to hold your hand?" Clary put both her hands behind her back like a small child. "Don't talk down to me." "Well, I could hardly talk up to you. You're too short.

There was a man once who said that mothers carry the key of our souls with them all our lives. But you threw mine away

A lot of people feel like urban fantasy is a shortcut that gets you around world-building, because it's set "in the real world." But it doesn't really work that way, as I found out. You have to come up with just as consistent an internal cosmology and magic system as you would if you were writing high fantasy.