[ There's always another way. That's how he runs things — how the Avengers run things — but that doesn't seem particularly relevant, talking to this kid. He's already 99% sure they're dealing with alternate realities; he has no idea what she came from, what kinds of rules she's dealing with.

Even if he did, now doesn't feel like the time for lectures. ]

Well, you won't have to kill anyone here. [ He's here. Cap's here. Other ways. Then, remembering the whole youthful pride thing, as an afterthought: ] Not that I don't think you could, obviously. Just... maybe we can avoid the whole killing thing.