Question

How does the quote "It is the responsibility of the writer to expose our many grievous faults and failures and to hold up to the light our dark and dangerous dreams, for the purpose of improvement" relate to Julius Ceasar by William Shakespeare.

Answer 1

How does how does that play " expose the faults and failures" of everyday ordinary people?
How do the "dark and dangerous" asperations of the characters reflect those of normal everyday society?

Look at this site: particularly the character descriptions, and the themes and motifs.

http://www.sparknotes.com/shakespeare/juliuscaesar/