The universe has certain rules. Among them are: And: And most applicable in this case: The first rule could be, at a stretch, applied to Tony Stark and the Iron Man suit, considering recent events. One notable exception to the second rule was currently swinging around New York City on a spider web, which did not bear thinking about.
Harry waxes poetic about magic. He'll go on and on about how it comes from your feelings, and how it's a deep statement about the nature of your soul, and then he'll whip out some kind of half-divine, half-insane philosophy he's cobbled together from the words of saints and comic books about the importance of handling power responsibly.