These days, they use so much pesticide that when I feed the children, I have to soak the vegetables for at least two hours. - Liu Cixin

At the end, an adult and a child stand in front of the grave of a Red Guard who had died during the faction civil wars. The child asks the adult, ‘Are they heroes?’ The adult says no. The child asks, ‘Are they enemies?’ The adult again says no. The child asks, ‘Then who are they?’ The adult says, ‘History.

and the thoughts she could not voice dissolved into her blood, where they would stay with her for the rest of her life.

In the eternal night of the Orion Arm of the Milky Way Galaxy, two civilization had swept through like two shooting stars, and the universe had remembered their light.