“Lockhart'll sign anything if it stands still long enough.”

“Anything's possible if you've got enough nerve.”

“You can exist without your soul, you know, as long as your brain and heart are still working. But you’ll have no sense of self anymore, no memory, no . . . anything. There’s no chance at all of recovery. You’ll just — exist. As an empty shell. And your soul is gone forever . . . lost.”

“He felt that he was still groping in the dark; he had chosen his path but kept looking back, wondering whether he had misread the signs, whether he should not have taken the other way.”

“A life of ease and plenty dangled over his head like a great bulging pinata, which he might smash open if only he had a stick big enough, and the knowledge of when to strike. Simon had the child's belief that the rest of the world exists as staging for their personal drama; that destiny hung over him, casting clues and signs in his path, and he could not help feeling that he had been vouchsafed a sign, a celestial wink.”

“And what will you give me in return, Severus?’ ‘In – in return?’ Snape gaped at Dumbledore, and Harry expected him to protest, but after a long moment he said, ‘Anything...”

“First sign of madness, talking to your own head.”