You come from a world of rules, of laws. This place is indifferent to all of that.
You are a vault dweller. But if you’re going to survive up here, you need to start acting like a surface dweller.[to Lucy]
If you insist on staying, then you will have to adapt.[to Lucy]
Before the war, people joked about cockroaches surviving a nuclear blast. But they didn’t merely survive. They improved.