“The strangest and hardest kind of time travel is the unaided kind.”

“Everyone has a time machine. Everyone *is* a time machine. It's just that most people's time machines are broken. The strangest and hardest kind of time travel is the unaided kind. People get stuck, people get looped. People get trapped. But we are all time machines.”

“All those stories about time travel, they were comforting, and at the same time it bothered me how they always made it seem fun and how everything fit into place, how things could only ever be how they were supposed to be, how the heroes found a way to change the world while still obeying the laws of physics.”

“When you are thirteen, you spend all your time imagining what it would be like to live in a world where you could pay a robot for sex. And that sex would cost a dollar. And the only obstacle to getting that sex would be making sure you had four quarters.Then you grow up and it turns out you do live in that kind of world. A world with coin-operated sexbots. And it's not really as great as you thought it would be.”

“She used her heart to love him, not her head, not her words and not her thoughts or ideas or feelings or any other vehicle or object or device people use to deliver love or love-like things. She used her heart, as a physical transmitter of love, and what came out of it was no more voluntary than gravity or time or time travel or the laws of fictional science itself.”

“Sometimes when I'm brushing my teeth, I'll look at the mirror and I swear my reflection seems kind of disappointed. I realized a couple of years ago that not only am I not super-skilled at anything, I'm not even particularly good at being myself.”

“There must be some kind of internal time distortion effect in here, because when I look at myself in the little mirror above my sink, what I see is my father's face, my face turning into his. I am beginning to feel how the man looked, especially how he looked on those nights he came home so tired he couldn't even make it through dinner without nodding off, sitting there with his bowl of soup cooling in front of him, a rich pork-and-winter-melon-saturated broth that, moment by moment, was losing - or giving up - its tiny quantum of heat into the vast average temperature of the universe.”