Hi! This is the first time I posted in here, but I've checking this site since last year via recommendation from my friend. We're currently writing an essay using this prompt:

"Morally ambiguous characters - characters whose behavior discourages readers from identifying them as purely evil or purely good - are at the heart of many works of literature. Choose a novel or play in which you explain how the character can be viewed as morally ambiguous and why his/her moral ambiguity is significant to the work as a whole."

And here is my thesis statement (I hid the title/names of the characters for personal reasons, I hope you don't mind):

...In the play [title of the play], by [name of the playwright], the [character] shows his ambiguity through his thoughts and interaction with other characters in order to prove his power as a duke and his sense of justice, which makes it difficult to discern his true intention/motivation. (<-- I can't decide which word is appropriate in this sentence. I hope you could tell me which one is better.)

As you can see, I'm not that confident enough in my thesis statement and I think it's weak regardless of how many times I changed it. I tried to put the answers in the highlighted part in there, but I'm not sure if it's good or convincing enough. Can you please help me in improving my thesis statement? Suggestions would be very much appreciated. Thank you very much in advance!

- K