<span>The right mind is good, honest and moral while the wrong mind is cruel, deceitful and selfish. In the story, the wrong mind attempted to deceive the right mind but could not. This shows that most of the time, good and honest will win out. It teaches that honesty in any situation is always the best course.</span>
The theme of this fable is that no one can overcome honesty. In light of that we see that greed and malice are to be downfalls of the individual. We can therefore deduce that leaders must be honest and honorable and not fall to vices like greed and be fair and not malicious.
Hmm...an easier way to find a theme of the story would be either scheming through the story looking for clues or facts or read it.
I hope this answer helps.