Walter: What's wrong? Why can't we get into Harvard?
Etta: It's been taken over by Observers, Walter.
Walter: Well, that's not a problem for someone who's done acid.
Etta: You don't know my world.
Olivia: You're right. I don't know your world. But I had hoped for you that, wherever you were, you weren't hardened by what had happened to you. And that it's not that I don't see what the Observers have wrought. I do. But what concerns me is what they've taken away.
Etta: This is the world. It is what it is.
Walter: But I trust that the same will that brought you here will keep you going. It is important that you follow the tapes. You must begin this journey right away. You are humanity's only hope. Now you must retrieve the first tape.