“Indifference and neglect often do much more damage than outright dislike.”

“Imperfect understanding is often more dangerous than ignorance.”

“Ah, Harry, how often this happens, even between the best of friends! Each of us believes that what he has to say is much more important than anything the other might have to contribute!”

“Bangs and smoke were more often the marks of ineptitude than expertise.”

“Dumbledore paused, and although his voice remained light and calm, and he gave no obvious sign of anger, Harry felt a kind of chill emanating from him and noticed that the Dursleys drew very slightly closer together.“You did not do as I asked. You have never treated Harry as a son. He has known nothing but neglect and often cruelty at your hands. The best that can be said is that he has at least escaped the appalling damage you have inflicted upon the unfortunate boy sitting between you.”

“There are much more terrible things than physical injury.”

“On the other hand, the Prince had proved a much more effective teacher than Snape so far.”