Dantes Inferno Cantos 7 & 8

Cantos 7
Lines 40-41--"At the circle's facing points, that mark devision: Between opposite faults"
The fault he speeks of is hoarding and excessive spending. These are opposite sides of greed. The soenders want to find all of the new comforts whereas the hoarders find comfort in as much money and possesions as they can have. In the book the two people run against eachother crushing the other with rocks. This shows the conflict between the two sides.

Lines 101--"these are the souls whom anger overcame"
The fourth level of hell is also reserved for those people who allowed anger to control them. They were destined to fight and attack eachother forever, others were trapped in the black-purple water of the land.

Cantos 8
Lines 58 and 63--"Come get Filippo Argenti" and "i leaned forward to peer out intently"
the first quote is another of the author dante's attacks on one of his rivals or enemies. He portrays the man as a man destined to hell that gets ripped apart. The second quote depicts Dante watching the carnage of the man intently and being happy about it. He says that he gives god thanks for allowing him to watch it. This is implying that Dante is above the normal person. He has just willed someone to die and he believes that he will be fine and remain vertuous. This idea that Dante is better than the others recurs many times.

Line 88-89--"You remain here, who have guided such a one: Over terrain so dark." You Judge, O reader"
This is spoken by the gaurds of the City of Dis. They want Virgil to stay but not Dante. This could be because Dante knows how to get to the lower regions of hell which they want to protect from good people. Also they do not want Dante, who in Dantes perspective is a virtuouus and good man, to pass on through the gates. They are afraid of everything good.