Isabelle

“You're my sister," he said finally. "My sister, my blood, my family. I should want to protect you" - he laughed soundlessly and without any humor - "to protect you from the sort of boys who want to do with you exactly what I want to do."
Clary's breath caught. "You said you just wanted to be my brother from now on."
"I lied," he said.”
― Cassandra Clare, City of Glass

“They think they're better than everyone else."
"No," said Jace. "I think I'm better than everyone else. An opinion that has been backed up with ample evidence."
Kyle looked at Simon. "Does he always talk like this?"
"Yes.”
― Cassandra Clare, City of Fallen Angels

“White for Shadowhunters is the color of funerals," Luke explained. “ But for mundanes, Jace, it’ s the color of weddings. Brides wear white to symbolize their purity.”
“I thought Jocelyn said her dress wasn’t white,” Simon said.
“Well,” said Jace, “I suppose that ship has sailed.”
Luke choked on his coffee.”
― Cassandra Clare, City of Fallen Angels

“This could be the last night of our lives, certainly the last even barely ordinary one. The last night we go to sleep and get up just as we always have. And all I could think of was that I wanted to spend it with you."
Her heart skipped a beat. "Jace-"
"I don't mean it like that," he said. "I won't touch you, not if you don't want me to. I know it's wrong - God, it's all kinds of wrong - but I just want to lie down with you and wake up with you, just once, just once ever in my life." There was desperation in his voice. "It's just this one night. In the grand scheme of things, how much can this one night matter?"
...There was nothing she had ever wanted in her life more than she wanted this night with Jace.
"Close the curtains, then, before you come to bed," she said. "I can't sleep with this much light in the room.”
― Cassandra Clare, City of Glass