“Now listen, we need to be quiet as mice. No, quieter than that. As quiet as… as…”
“Dead mice?” Reynie suggested.
“Perfect,” said Kate with an approving nod. “As quiet as dead mice.”

“Very quiet and yet quieter living-for-ourselves.”

“"Why are you filming this?"
"When the cat is away, the mice will play… Always good to remind the mice that in this case, when the cat is away, the mice will all be eaten by demons. I'm going to send this video file to everyone one of our Downworlder contacts around the world. Just a reminder that there are demons we need Shadowhunters to destroy. That's why they exist."”

“Quiet Spaces
We had gone far enough together to listen easily in the quiet spaces.”

“And we talked of girls, and dropping bombs on Rome,
And thought of the quiet dead and the loud celebrities
Exhorting us to slaughter.”

“Listen, you impossible creature," he said, "I'm a century and more older than--"
"Oh, be quiet," I said impatiently.”

“Everything was so quiet, as if the silence was listening.”

“For quiet times disappear listen to the ocean”

“Are you listening to the ones who keep quiet?”

“You've been quiet lately… but it's not so much the quiet as something inside the quiet.”