You will never truly know yourself or the strength of your relationships until both have been tested by adversity.

He’s gone, Harry told himself. He’s gone. He had to keep thinking it as he washed and dressed, as though repetition would dull the shock of it. He’s gone and he’s not coming back. And that was the simple truth of it, Harry knew, because their protective enchantments meant that it would be impossible, once they vacated this spot, for Ron to find them again.

If all goes well, you will be able to save more than one innocent life tonight.

Dementors are among the foulest creatures that walk this earth. They infest the darkest, filthiest places, they glory in decay and despair, they drain peace, hope, and happiness out of the air around them. Even Muggles feel their presence, though they can’t see them. Get too near a Dementor and every good feeling, every happy memory will be sucked out of you. If it can, the Dementor will feed on you long enough to reduce you to something like itself — soul-less and evil. You’ll be left with nothing but the worst experiences of your life.

Professor Flitwick had dried himself off and set Seamus lines ("I am a wizard not a baboon brandishing a stick")

How do you feel, Georgie?" whispered Mrs. Weasley. George's fingers groped for the side of his head. "Saintlike," he murmured. "What's wrong with him?" croaked Fred, looking terrified. "Is his mind affected?" "Saintlike," repeated George, opening his eyes and looking up at his brother. "You see...I'm HOLEY, Fred, geddit?

I knew I could do it all this time,” said Harry, “Because I'd already done it... does that make sense?