Sofia tries to figure out how to fight monsters according to the categorical imperative.
Sofia: I could play MacGyver, wrap together a bomb from the white board cleaner and some pens, and blow them up. But if everybody blew monsters up the entire country would explode. Nobody can want that.
Sofia: Perhaps I could call the government and call in the army! But if everybody did that, phone lines would be overloaded. Nobody can want that.
But perhaps if I found somebody who was happier than the happiness monsters!
Sofia: Mary! Check this out! Something to play with!