"In trench warfare five things are important: firewood, food, tobacco, candles, and the enemy. In winter on the Zaragoza front they were important in that order, with the enemy a bad last."

"All of the narration in 'Smile' is first-person. Most of the books that I grew up reading had first-person narrators for some reason. My diaries were written in this voice, and since this story is autobiographical, it just felt like a natural extension."

"I hit him for every single thing that was wrong in my life and kicked him in a fierce fury of madness as he sobbed and covered his face and screamed. I hit him because Walter hit me and I hit him because I hated my life and I hit him because I just wanted to go home and I hit him because I didn’t know where home was."

"One thing I've always wondered—why did you enter that bikini contest when you were a teenager?” Her face flushed with a mixture of anger and embarrassment. “How far back did you trace me?” “Far enough.” A pause. “You didn't answer my question.” “And you didn't turn into a puff of smoke and disappear. The world is full of disappointments."

"But there was something terrifying taking over her thoughts, and it wouldn't leave. Out of seven billion sharing the planet with her, not one of them knew what was going through her head. Not one of them knew that she was lost. Not one of them asked."