Pros and cons in literature lather and nothing else?

The poem “richard cory” by edwin arlington robinson explores how the theme of dissatisfaction and the mentality that “the grass is greener on the other side” affects all humans. which two lines in this excerpt reflect those themes?

Who first discovers the alien cylinder on horsell common

Which statements are true of an allegory? check all that apply. it is an extended metaphor. it has literal and symbolic meanings. it to communicate an abstract concept. it is an exact representation of actual events. it uses objects to represent a single characteristic. it has moral, social, religious, or political significance.