Which is a theme of’’ the horse and the loaded donkey

I don't see any options, but if you had to write your own theme I would say, you don’t gain from being selfish but only lose. The evidence to support the claim... *enter the theme* is that in the story, ”The Horse and the Loaded Donkey” the horse refuses to carry only half the burden when asked to help by the donkey but instead the horse refuses and when the donkey grows weary the horse winds up, in the end, carrying the entire burden instead of just half of it. In conclusion that is just one example of how my theme makes sense. *Disclaimer: I'm extremely sorry if this didn't help*