Thoreau mostly uses imagery to illustrate time in the excerpt. The second sentence is saying that he is in the midst of time/living, and he can "detect how shallow it is," meaning that he is aware that life is short and that the end is inevitable. Thoreau also describes time as being fleeting, but ever-present.
I hope this helps!
D.. PSAT REASONS TO TAKE THE PSAT. The PSAT is a two-hour test given once a year in October. Many students take the PSAT, not only as preparation for the SAT taken in senior year and widely used as a major criterion for college admissions, but also to qualify for the National Merit Scholarship Competition.
Answer: "Casca joins the conspiracy because Cassius uses various means to manipulate his emotions."
Waterfall, I think
Keeps going
C. Commas is what sets apart an appositive
