"Do unto others as you would have them do unto you."
I came up with the idea to make a little paper doll chain and write the verses on it. It probably means nothing to D, but I think it's cute. The other lesson we did (which he probably didn't understand) was coming up with "nice" things to do for people and writing them on petals. Then we made a little kindness flower with the verse on it.
We still haven't mastered this verse and we work on it pretty much every day. The other verses sound great though!!