Quote 10
"So it all comes down to this, doesn't it?" whispered Harry. "Does the wand in your hand know its last master was Disarmed? Because if it does… I am the true master of the Elder Wand."
A red-gold glow burst suddenly across the enchanted sky above them as an edge of dazzling sun appeared over the sill of the nearest window. The light hit both of their faces at the same time, so that Voldemort's was suddenly a flaming blur. Harry heard the high voice shriek as he too yelled his best hope to the heavens, pointing Draco's wand:
"Avada Kedavra!" "Expelliarmus!" (36.118-121)
Harry stays true to himself all the way to the end – he recognizes his own identity as the master of the Hallows, and pulls out his signature spell to prove it. Voldemort's own actions are classic Voldy; he thinks he can just blast Harry away and solve all his problems, but this single-minded attitude fails him here. (Hasn't he yet learned he can't use that spell on Harry, by the way? Sheesh.)
Quote 11
"I'm putting the Elder Wand," he told Dumbledore, who was watching him with enormous affection and admiration, "back where it came from. It can stay there. If I die a natural death like Ignotus, its power will be broken, won't it? The previous master will never have to be defeated. That'll be the end of it.
Dumbledore nodded. They smiled at each other.
"Are you sure?" said Ron. There was the faintest trace of longing in his voice as he looked at the Elder Wand.
"I think Harry's right," said Hermione quietly.
"That wand's more trouble than it's worth," said Harry. "And quite honestly… I've had enough trouble for a lifetime." (36.147-150)
Harry shows true power of a sort here – the ability to say "no" to having too much power, if that makes sense. His decision to break the pattern of the Elder Wand and to lay it to rest again in Dumbledore's tomb proves his worthiness in ever possessing the Hallows; he knew when to use them, and when to stop.
Quote 12
"No," Harry said aloud, and they all looked at him, surprised. The firewhiskey seemed to have amplified his voice. "I mean… if somebody made a mistake," Harry went on, "and let something slip, I know they didn't mean to do it. It's not their fault," he repeated, again a little louder than he would usually have spoken. "We've got to trust each other. I trust all of you, I don't think anyone in this room would ever sell me to Voldemort." (5.119)
Harry's unwilling to entertain the idea that anyone in the Order would betray him. And he's right – in a struggle like this, trust, faith, and loyalty are all they have.