Well I think it is often the case that the biggest bullies take what they know to be their own defects, as they see it, and they put them right on someone else and then they try and destroy the other and that's what Voldemort does.
J. K. RowlingAnd now a chill settled over them where they stood, and Harry heard the rasping breath of the dementors that patrolled the outer trees. They would not affect him now. The fact of his own survival burned inside him, a talisman against them, as though his father's stag kept guardian in his heart.
J. K. RowlingVoldemortโs fury at the fall of his last, best lieutenant exploded with the force of a bomb.
J. K. RowlingMakes a diff'rence, havin' a decent family,' he said. 'Me dad was decent. An' your mum an' dad were decent. If they'd lived, life woulda bin diff'rent, eh?' 'Yeah, I s'pose,' said Harry cautiously. Hagrid seemed to be in a very strange mood. 'Family,' said Hagrid gloomily. 'Whatever yeh say, blood's important.
J. K. Rowling