Don't swear in the Literal Heart of Jesus.

that while the world wasn't built for humans, we were built for the world.

Hazel Grace,” he said. “Hi,” I said. “How are you?” “Grand,” he said. “I have been wanting to call you on a nearly minutely basis, but I have been waiting until I could form a coherent thought in re An Imperial Affliction.” (He said “in re.” He really did. That boy.)

You cannot invent an algorithm that is as good at recommending books as a good bookseller, and that's the secret weapon of the bookstore - is that no algorithm will ever understand readers the way that other readers can understand readers.

She walks lightly, old man. She walks lightly upon the earth.

There is always the risk: something is good and good and good and good, and then all at once it gets awkward. All at once, she sees you looking at her, and then she doesn't want to joke around with you anymore, because she doesn't want to seem flirty, because she doesn't want you to think she likes you. It's such a disaster, whenever, in the course of human relationships, someone begins to chisel away at the wall of separation between friendship and kissing.

I was struck by an awful thought, the kind that cannot be taken back once it escapes into the open air of consciousness; it seemed to me that this was not a place you go to live. It was a place you go to die.