Noah gets thoughtful when he's tired. "Why are people here?" he asked.

After a pause I said, "I don't know, what do you think?"

"To take care of the earth," he said.

While I was pondering that he asked, "Why does the world have criminals in it?" [pause as I tried to think of what I could possibly say to explain this to a six-year-old] Then he told me in a sleepy whisper, "Criminals try and make the world die, by giving it a poisonous sickness."

Then, "Linda? Will you please get off the computer so we can go to bed?"

Yes, sweetie, that's a good idea. Good night. Sweet dreams.