You are protected, in short, by your ability to love! The only protection that can possibly work against the lure of power like Voldemort's! In spite of all the temptation you have endured, all the suffering, you remain pure of heart, just as pure as you were at the age of eleven, when you stared into a mirror that reflected your heart's desire, and it showed you only the way to thwart Lord Voldemort, and not immortality or riches. Harry, have you any idea how few wizards could have seen what you saw in that mirror?" — Albus Dumbledore describing Harry's rare nature
Harry Potter: "But why's she got to go to the library?" Ronald Weasley: "Because that's what Hermione does. When in doubt, go to the library." — Hermione's dependency on book
"I'm the sixth in our family to go to Hogwarts. You could say I got a lot to live up to. Bill and Charlie have already left — Bill was Head Boy and Charlie was captain of Quidditch. Now Percy's a prefect. Fred and George mess around a lot, but they still get really good marks and everyone thinks they're really funny. Everyone expects me to do as well as the others, but if I do, it's no big deal, because they did it first." — Ron's family and other's expectation