Answer:
They reveal some truth about humanity.
They stay pertinent to any audience.
Explanation:
The theme in a literary work refers to the central subject to which the work is referring. These subjects are striking, profound and impacting to the reader. They address something that is pertinent about humanity and that should be discussed within a more visible context, through a literary narrative. Because it is so credible to human beings, the theme remains relevant to the public throughout the reading.
Appeal to emotion. He's trying to manipulate people's emotions by saying things like ""deserves the love and thanks" which is very positive. Who wouldn't want to be loved and thanked by others? I think he's trying to say that if you fight, you will be honored.
Appeal to ethics is when the writer tries to convince the reader that he is knowledgeable about the subject like if he said, "As a doctor...." But he doesn't refer to himself in this passage.
Appeal to logic would be using facts, reasoning, evidence, and stuff, but I don't see a lot of facts here.
Appeal to authority would be him saying that because another person said something, it must be true. But he doesn't refer to anyone else here.