Willow

“Astriola. That IS demon pox. You had evidence that demon pox existed and you didnt mention it to me! Et tu, Brute!' He rolled up the paper and hit Jem over the head with it.”
― Cassandra Clare, Clockwork Prince

“Demon pox, oh demon pox
Just how is it acquired?
One must go down to the bad part of town
Until one is very tired.
Demon pox, oh demon pox, I had it all along—
Not the pox, you foolish blocks,
I mean this very song—
For I was right, and you were wrong!"

"Will!" Charlotte shouted over the noise, "Have you LOST YOUR MIND? CEASE THAT INFERNAL RACKET! Jem—"
Jem, rising to his feet, clapped his hands over Will's mouth. "Do you promise to be quiet?" he hissed into his friend's ear.
Will nodded, blue eyes blazing. Tessa was staring at him in amazement; they all were. She had seen Will many things—amused, bitter, condescending, angry, pitying—but never giddy before.
Jem let him go. "All right, then."
Will slid to the floor, his back against the armchair, and threw up his arms. "A demon pox on all your houses!" he announced, and yawned.
"Oh, God, weeks of pox jokes," said Jem. "We're in for it now.”
― Cassandra Clare, Clockwork Prince

“When two souls are as one, they stay together on the Wheel. I was born into this world to love you, and I will love you in the next life, and the one after that." ~Jem Carstairs”
― Cassandra Clare, Clockwork Prince

“But—but...” Will sputtered.
“Oh, leave it,” said Jem, kicking Will, not without affection, lightly on the ankle.
“She annexed my plan!”
“Will,” Tessa said firmly. “Do you care more about the plan being enacted or about getting credit for it?”
Will pointed a finger at her. “That,” he said. “The second one.”
― Cassandra Clare, Clockwork Prince