The word "precursor" means "preceding requirement". This means that before a student is able to take courses in Calculus, it is required that the passed all the requirements for his Algebra. Calculus is a course which involves the study on derivatives and integrals.
The person above me is correct - the theme of the whole story The Tell Tale Heart, written by American Romanticist Edgar Allan Poe is definitely how a human being cannot possibly bear to hide such a terrible secret and live with so much guilt.
The narrator of the story killed a man and buried him under the floor, but he constantly kept hearing the dead man's heartbeats, which is, of course, impossible, but given that he was feeling so guilty for having murdered a person, his mind brought him to insanity.
Elie Wiesel's inheritance is a knife and a spoon that his father leaves to him when he dies. His father tries to give it to him a few times when his name is called during selection, but Elie does not take until the very end. This shows that the fortunes of the Wiesel family have drastically changed since chapter 1 when the family buried their most prized possessions to keep them out of the hands of the German soldiers. This was true for many Jews at the end of WWII. Their homes had been raided and all of their possessions taken. Many Jews had nowhere to go and no money after they were liberated from the concentration camps.
