“Wands are only as powerful as the wizards who use them. Some wizards just like to boast that theirs are bigger and better than other people's.”
“Don't put your wand there, boy! What if it ignited? Better wizards than you have lost buttocks, you know.""Who d'you know who's lost a buttock?""Never you mind...”
“The moment when Harry takes Draco's wand... I think it really puts the elaborate, grandiose plans of Dumbledore and Voldemort in their place. That actually the history of the wizarding world hinged on two teenage boys wrestling with each other. They weren't even using magic. It became an ugly little corner tussle for the possession of wands.”
“Don’t put your wand there, boy!” roared Moody. “What if it ignited? Better wizards than you have lost buttocks, you know!” “Who d’you know who’s lost a buttock?” the violet-haired woman asked Mad-Eye interestedly. “Never you mind, you just keep your wand out of your back pocket!” growled Mad-Eye. “Elementary wand safety, nobody bothers about it anymore . . .” He stumped off toward the kitchen. “And I saw that,” he added irritably, as the woman rolled her eyes at the ceiling.”
“Maybe a man in a million could unite the Hallows, Harry. I was fit only to possess the meanest of them, the least extraordinary. I was fit to own the Elder Wand, and not to boast of it, and not to kill with it. I was permitted to tame and to use it, because I took it, not for gain, but to save others from it.”
“But people only die in proper duels, you know, with real wizards. The most you and Malfoy’ll be able to do is send sparks at each other. Neither of you knows enough magic to do any real damage. I bet he expected you to refuse, anyway.” “And what if I wave my wand and nothing happens?” “Throw it away and punch him on the nose,” Ron suggested.”
“Curious indeed how these things happen. The wand chooses the wizard, remember...I think we must expect great things from you, Mr. Potter... After all, He-Who-Must-Not-Be-Named did great things — terrible, yes, but great.”