“I thought you hated demons. Now you use them like servants. The Ravener, the Drevak demons, Agramon-they‘re your. Guards, butler-personal chef, for all I know.”
-Jace to Valentine, pg.260”

“They can't be worse than vampires. And you did all right with them."
"Did all right with them? By which I take it you mean we survived?"
"Well..."
"Faeries," Jace went on, as if Simon hadn't spoken, "are the offspring of demons and angels, with the beauty of angels and the viciousness of demons. A vampire might attack you, if you enter its domain, but a faerie could make you dance until you died with your legs ground into stumps, trick you into a midnight swim and drag you screaming underwater until your lungs burst, fill your eyes with faerie dust until you gouged them out at the roots-"
"Jace!”

“But if you can confront your inner demons—"

"I did confront my inner demon. I punched him in the face and he exploded."

Valkyrie had to laugh. "But now he's back."

"Of course he's back. He's resourceful. He isinner demon, after all.”

“Here's what I'm going to have to say to all of you. If some of you have demons in your head who talk to you in profanity or whatever, don't let your demon shoot down your rock music, don't let your demon keep you off the joy bus. So like I say, Rock music pays off.”

“What happens in the demon realms stays in the demon realms,” said Jace.”

“Ah, you fight like a sissy demon. (Takeshi)
Sissy demon? Have you ever met a sissy demon? (Savitar)
I killed three this morning. (Takeshi)”

“I never thought… that someone liked me… not like a demon… not like a half-demon… not even like human… just like… just like me!" -Inuyasha”

“Well, I hate to tell you this," she said, "but your friend is an asshole."
"He's not my friend," said Simon. "And I couldn't agree with you more, actually."
-Maia & Simon about Jace, pg.49-”

“The demons will always be there, Always. But you know, (hard breath) you can always fight demons.”

“He wont have to worry about you spilling his secrets.”
“Yeah,” Jace said, “he‘s terrified I‘ll tell everyone that he‘s always really wanted to be a ballerina.”
-Inquisitor & Jace about Valentine, pg.123-”