Knuckleduster quotes from My Hero Academia (newest)

Knuckleduster: He puts on a mask and becomes someone else. You run into guys like that now and then. They put on a mask or a disguise, and they're convinced they're no longer their usual selves. They think they're some unbeatable superman. Guys like that are trouble, because they ignore social mores and their own safety when they come at you. But they're also fragile when you come at them. "I'm just a flesh-and-blood human too, in the end." Someone who's forgotten that ultimately doesn't have much resolve.

The Crawler: Uh, hey... M-Master? You just said, "Don't cross this line."
Knuckleduster: Hey, doesn't mean I can't cross it.