Harry, laughing with the others, was glad to have an innocent reason to look at Ginny; he had received several more Bludgers injuries during practice because he had not been keeping his eyes on the snitch. Harry Potter and the Half-Blood Prince
I want you to listen to me very carefully, Harry. You’re not a bad person. You’re a very good person, who bad things have happened to. Besides, the world isn’t split into good people and Death Eaters. We’ve all got both light and dark inside us. What matters is the part we choose to act on. That’s who we really are.
Earlier: “Send him a message.” “No, you send him a message. I don’t want to spoil his night. It’s his and his wife’s wedding anniversary. I’m sure they are celebrating now.” “Who cares! We will die if we don’t get some help!” “Well, I care! Have you seen Potter in a bad mood? We are going to die either way.”
“I DON’T CARE!“ Harry yelled at them, snatching up a lunascope and throwing it into the fireplace. "I’ve had enough, I’ve seen enough. I want out, I want it to end, I don’t care anymore!” "You do care,” said Dumbledore. He had not flinched or made a single move to stop Harry demolishing his office. His expression was calm, almost detached. “You care so much you feel as though you will bleed to death with the pain of it.”