„Your place is with me. It always will be. -Jem Carstairs“

— Cassandra Clare
„For five years it had been his absolute truth. Jem and Will. Will and Jem. Will Herondale lives, therefore Jem Carstairs lives also.“
— Cassandra Clare
„I do not believe you can threaten people into goodness.” - Jem Carstairs“
— Cassandra Clare
„James Carstairs! Jem! Where are you, you disloyal bastard?“
— Cassandra Clare
„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
„There must always be a first," said Jem. "It is not easy to be first, and it is not always rewarding, but it is important.“
— Cassandra Clare
„Always when Will did something to protect Tessa, Jem thought it was for his sake, not for Will's. Always Will wished Jem could be entirely right. Each needle prick had it own name. Guilt. Shame. Love.“
— Cassandra Clare
„Go in peace, James Carstairs.“
— Cassandra Clare
„You are James Herondale, said Uncle Jem. As you always were. Part your mother, part your father, part yourself. I would not change any part of you if I could.“
— Cassandra Clare
„If there is a life after this one, he said, let me meet you in it, James Carstairs.“
— Cassandra Clare
„Will: "You are not really dying, are you?"Jem: "So they tell me."Will: "I am sorry."Jem: "No. Don’t be ordinary like that. Don’t say you’re sorry. Say you’ll train with me."Will: "I’ll train with you.“
— Cassandra Clare
„You are home for me now." --Jem to Tessa“
— Cassandra Clare
„She knew she could not be Jem for Will. No one could. But slowly the hollow places in his heart were filling in.“
— Cassandra Clare
„Jem" I have an assignmation in Soho this evening with a certain attractive someone.Tessa: Goodness. If you keep seeing Six-Fingered Nigel like this, he'll expect you to declare your intentions.Jem choked on his tea.“
— Cassandra Clare
„When Will truly wants something,” said Jem, quietly, “when he feels something — he can break your heart.“
— Cassandra Clare
„Jem?" he said. 'It is you, James?''Who else?' Jem's voice.“
— Cassandra Clare
„Will has always been the brighter burning star, the one to catch attention — but Jem is a steady flame, unwavering and honest. He could make you happy.“
— Cassandra Clare