What are two ways to conclude a presentation in a memorable way?

What is the central idea in this advice from branch rickey to jackie robinson?  

[v]ast numbers of our people are compelled to seek their livelihood by begging, robbing, stealing, cheating, flattering, suborning, forswearing, forging . . which satirical element is most dominant in the passage above?

Which passage is an example of rising action in edgar allan poe`s "the black cat