“A person who thought he knew everything simply didn’t understand how much there was to know.”

“She realized all at once that Doon, thin, dark eyed Doon, with his troublesome temper and his terrible brown jacket, and his good heart---- was the person she knew better than anyone now. He was her best friend.--City of Ember--”

“It would be something that another person had written down without understanding its significance; just a sentence or two that would be like a flash of light.”

“She started back down the trail. If no dogs find the food, she thought, maybe squirrels will. Or that white bear. Or if no one finds it, then it can all be for God. Only not for the Prophet's God, her mean, picky God who dislikes so many things. It's for my God, the god of dogs and snakes and dust mites and albino bears and Siamese twins, the god of stars and starships and other dimensions, the god who loves everyone and who makes everything marvelous.”

“Kept talking about how she's studying every holy book she can get her hands on, aiming to understand God's word. I quoted St. Augustine to her. 'If you understand it, it isn't God.' Gave her a cup of chamomile tea.”

“His sympathy made tears spring to Lina's eyes. Doon looked startled for a moment, and then he took a step toward her and wrapped his arms around her. He gave her a squeeze so quick and tight that it made her cough, and then it made her laugh. She realized all at once that Doon--thin, dark-eyed Doon with his troublesome temper and his terrible brown jacket and his good heart--was the person that she knew better than anyone now. He was her best friend.”

“The main thing is to pay attention. Pay close attention to everything, notice what no one else notices. Then you’ll know what no one else knows, and that’s always useful.”