I've gotten really hot since you went blind. - John Green

And all at once I knew how Margo Roth Spiegelman felt when she wasn't being Margo Roth Spiegelman: she felt empty. She felt the unscaleable wall surrounding her. I thought of her asleep on the carpet with only that jagged sliver of sky above her. Maybe Margo felt comfortable there because Margo the person lived like that all the time: in an abandoned room with blocked-out windows, the only light pouring in through holes in the roof. Yes. The fundamental mistake I had always made — and that she had, in fairness, always led me to make — was this: Margo was not a miracle. She was not an adventure. She was not a fine and precious thing. She was a girl.

[M]aybe the strings break, or maybe our ships sink, or maybe we're grass—our roots so interdependent that no one is dead as long as someone is still alive. We don't suffer from a shortage of metaphors, is what I mean. But you have to be careful which metaphor you choose, because it matters. If you choose the strings, then you're imagining a world in which you can become irreparably broken. If you choose the grass, you're saying that we are all infinitely interconnected, that we can use these root systems not only to understand one another but to become one another. The metaphors have implications.

What else? She is so beautiful. You don’t get tired of looking at her. You never worry if she is smarter than you: You know she is. She is funny without ever being mean. I love her. I am so lucky to love her, Van Houten. You don’t get to choose if you get hurt in this world, old man, but you do have some say in who hurts you. I like my choices. I hope she likes hers.