Do not pity the dead, Harry. Pity the living, and, above all... - J.K. Rowling, Harry Potter and the Deathly Hallows

"Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?"

"She picked up the book and then walked back past him into the tent, but as she did so, she brushed the top of his head lightly with her hand. He closed his eyes at her touch, and hated himself for wishing that what she said was true: that Dumbledore had really cared."

"Cinderella? Snow White? What's that? An illness?"

"Great, tell me when you've defeated Voldemort for me, will you?"

"Where your treasure is, there will your heart be also"