"Mom," Dan said, waving a page in front of me that was covered with squiggly lines. "I wrote a story. You can tell it's good because it has lots of letters in it."
Well, I think that pretty much covers it!
Also, his answer to cooking problems:
"Mom, let's make yogurt."
"Well, there are two problems with that. One is...."
"Well if we just made the yogurt, there wouldn't be any problems with it."