Lines 273–305: What topic does King choose to finish this segment of his argument and why? Review lines 273–285. In what lines does King state his central idea? What is the conclusion that all of these reasons and evidence have been leading to?

"the day we found the sharks' teeth" i would say highlight the element of the plot as it sets its boundaries and centers the adventures of them being on a boat and cleaning spit of sand.

1.the hosts on two opposing mountains stood,  

2.thick as the foliage of the waving wood;  

3.between them an extensive valley lay,  

4.o'er which the gleaming armour pour'd the day,  

5.when from the camp of the philistine foes,

6. dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,

the emperor is made to look inferior next to faustus's power.