Amy Pond: What if you were really old, and really kind and lonely, your whole race dead. What couldn't you do then? If you were that old, and that kind, and the very last of your kind, you couldn't just stand there and watch children cry.
Amy: Amazing, though, don’t you think? The Star Whale. All that pain and misery…and loneliness…and it just made it kind.
The Doctor: But you couldn’t have known how it would react.
Amy: You couldn’t. But I’ve seen it before. Very old and very kind, and the very, very last. Sound a bit familiar? Hey...