People find a way through just about anything.

They lifted their faces to the astonishing warmth. The sky arched over them, a pale, clear blue. Lina felt as though a lid that had been on her all her life had been lifted off. Light and air rushed though her, making a song, like the songs of Ember, only it was a song of joy. She looked at Doon and saw that he was smiling and crying at the same time, and she realized that she was, too.

People find a way through just about anything.

What you need to learn, children, is the difference between right and wrong in every area of life. And once you learn the difference, you must always choose the right.

There is so much darkness in Ember, Lina. It's not just outside, it's inside us, too. Everyone has some darkness inside. It's like a hungry creature. It wants and wants and wants with a terrible power. And the more you give it, the bigger and hungrier it gets.

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.