None but the science student can apply for the post.(into positive)

In a short story the narrator's word choice

Which sentence is correct? laura lent me her copy of cooking weekly so i could use a recipe. i enjoy doing crossword puzzles from the new york times. herman melville wrote the novel “moby d ick.” maggie loves to read the smithsonian magazine.

In the following line, "so many crazed men, so much shouting, so much brutality, " what type of rhetorical feature is wiesel using to emphasize the image?