It's a disappointing answer, until he once again remembers Beth's advice. Everything he says is a lie. Maybe he can teach it. Maybe he just doesn't want to. It's entirely possible he'll need to be bargained with, but that can be dealt with later. This is the sort of man who will want the best cuts of meat, or, hm, moonshine? Daryl can manage that.

So instead of giving up, he says, "Naw. Not to Beth. S'about strength." Stupid, raw brutality and strength, striking when you can and waiting when you can't. It's not a technique that would be useful for her. "Yours's different. You could."