Chatting to 5y/o DD today and happened to mention the phrase "don't judge a book by its cover". Explained to her what I meant etc and the day resumed.
I asked her a little later on if she remembered the phrase we had spoke about and she said, with great conviction and confidence;
"Looks a bit weird on the outside but it's nice on the inside."
Not quite but I'll allow it 
Kids are so weird but heartwarming at the same time.
Bloody love her.