"Daddy, why do grown-ups need robot nannies, too?"
"To meet all their needs."
"Daddy, why is the sky gray?"
"The sky used to be blue. The air was fresh, and there were fish in the water, too."
Lucy looked at her father and said, "Daddy, you're different from other people."
Cooper asked, "How so?"
Lucy said, "You never seem to get old."
