"Which do you think is more valuable," Nasruddin asked, "the sun, or the moon?"
"What a stupid question, Nasruddin!" they all shouted at him. "The sun is more valuable by far!"
Nasruddin shook his head. "I disagree."
"Are you saying the moon is more valuable than the sun? How can that be?" they asked.
"Isn't it obvious?" Nasruddin replied. "The moon is more valuable because we need the light more at night when it's dark."
Inspired by: Mulla's Donkey and Other Friends by Mehdi Nakosteen
Notes: This story is on p. 87 of the book.