Some long term impacts of Shakespeare's writings are that they are still told through generations and they tell story's that impact our lives that teche us lessons .
Rome n Carthage were the two superpowers of their time.
They both saw each other as threats.
So the Romans simply fought to gain more power.
Answer: If it's in your opinion, then no. But if it's somebody else's opinion that you don't agree with, then you do have to cite your sources.
I hope that makes sense!