“Kids are like heroin, a little heroin addiction. When it’s bad, you’ve never been so miserable, but when it’s good you’ve never been so high.”

“Oh, come on, Harry,” said Hermione, suddenly impatient. “It’s not Quidditch that’s popular, it’s you! You’ve never been more interesting, and frankly, you’ve never been more fanciable.”

“Sometimes it’s hard to know when you’ve crossed the line from conscientious to compulsive. When you’re in the thick of an assignment, it’s easy to believe that you must spend so much time brainstorming, researching, writing, testing, revising or what-have-you. Often, it’s only after you’ve been working for hours on end that you realize that half the work you’ve been doing wasn’t actually necessary and that you’ve just wasted a lot of time.”

“Drugs are a bad habit, so why do it? Because, said Dimple, it isn't the heroin that we're addicted to, it's the drama of the life, the chaos of it, that's the real addiction and we never get over it; and because when you come down to it, the high life, that is, the intoxicated life, is the best of the limited options offered.”

“Writing to me is like being addicted to heroin… it’s hard and its mean, but you just can’t stop.”

“It’s funny how you can be all alone and in danger and then a minute later feel totally safe, like you’ve never been lonely before.”