In Arthur Miller's "Tragedy and the Common Man", he talks about how sometimes it is seen that only royalty are fit for tragedy, but he believes that to be wrong. It applies to everyone in similar emotional situations. He explains it as something that the public would not be able to cherish if it were not able to feel it. We would not even know what it is or what it felt like were we not able to experience it.
Miller also explains a major principle he has: tragic feelings are felt when we know someone who is willing to end their life for the sake of dignity. He said these events spiral from the wound of indignity. Tragedy is the result of our compulsion to evaluate ourselves justly. Whether you have never sought it before or are seeking it again, this is what tragedy comes from.
To me, this all seemed pretty obvious. That could just be because I have been researching tragedy and watched a very informative Ted Talk about it. I thought the author tried to hard by using big words and drawn out sentences to make a point that seemed rather pronounced to begin with. I think there was some solid information, but a lot of beating around the bush.