“Mad Eye' Moody on the Avada Kedavra curse: "Not nice," he said calmly. "Not pleasant. And there's no counter curse. There's no blocking it. Only one known person has ever survived it, and he's sitting right in front of me.”

“There's a curse on me as there's a curse on the Larkin name. The curse comes back, again and again, to taunt me! Ronan! Kilty! Tomas! And now me! What are the Irish among men? Are we lepers? Are we a blight? Will there ever be an end to our tears?”

“There is no need for me to curse you -the murderer survives the victim only to learn that it was himself that he longed to be rid of. Hatred is self-hatred.”

“Snape raised his wand and pointed it directly at Dumbledore."Avada Kedavra!”

“You said a curse is only a curse if I allowed myself to me cursed by it. You said... I had it in my power to free myself of any curse - that curses were preludes to blessings...”

“Curse him to eternal damnation! Yes! Of course!" came the emotional reply."Don't curse him," I said softly. "Remember--he's only a machine, just an imperfect mirror of ourselves. We made him what he is--the disease, the cancer."There was nothing else to say, because that left only cursing ourselves, and we were already cursed.”