Answer:
The valley of ashes between West Egg and New York City consists of a long stretch of desolate land created by the dumping of industrial ashes. It represents the moral and social decay that results from the uninhibited pursuit of wealth, as the rich indulge themselves with regard for nothing but their own pleasure. The valley of ashes also symbolizes the plight of the poor, like George Wilson, who live among the dirty ashes and lose their vitality as a result.
At the end of Sophocles' Oedipus Rex, the protagonist Oedipus has gouged out his own eyes and is sent into exile. His wife (and -- spoiler alert -- his mother) is dead, having hung herself.
Blogs would NOT be a valid source for research. Blogs are more opinion-based than books.
Supercilious means to believe or act above someone. Incessant means to be constant.
He's acting <em>supercilious</em> because he has that car.
She's <em></em>quite <em>incessant</em> with her words.