“Maybe some people don't feel scared when they think about comets and supernovas. Maybe they think it is wonderful.”

“A child playing with its father screams louder, laughs harder, jumps more eagerly, puts more faith in everything.”

“There are three things that robots cannot do," wrote Maxon. Then beneath that on the page he wrote three dots, indented. Beside the first dot he wrote "Show preference without reason (LOVE)" and then "Doubt rational decisions (REGRET)" and finally "Trust data from a previously unreliable source (FORGIVE).”

“Sunny put on eyebrows, eyelashes, makeup, matching pajamas, a silk robe, and then say looking at herself in the vanity mirror in her bathroom. She had experienced moments in her life when she realized that she was actually alive and living in the world, instead of watching a movie starring herself, or narrating a book with herself as the main character. This was not one of those moments. She felt like she was drifting one centimeter above her physical self, a spirit at odds with its mechanical counterpart. She stood up carefully. Everything looked just right.”

“This is a love story about astronomy, he thought. Twin souls collide and love each other forever. And no one ever goes crazy. And no one ever dies. And the universe folds back on itself and clicks into place, and the pylons holding up the electrical wires are really trees. And the trees are really gods.”

“As if it would slide off their brains at an angle, leaving a scuff mark.”

“Sleep is a shallow death we practice every night.”

“Maybe some people don't feel scared when they think about comets and supernovas. Maybe they think it is wonderful.”

“I will never forget the asymmetry of your eyes. it is transformative symmetry. it is the best symmetry. It is the symmetry that is beauty.”