Help with Questions to The Picture of Dorian Gray: Oscar Wilde was one of the

Oscar Wilde was one of the leading proponents of a school of thought known as Aestheticism, which argued that the sole purpose of art was beauty – that it needed no other justification, either moral or functional. Discuss the role played by this philosophy in his novel The Picture of Dorian Gray. In what ways are the ideas of Aestheticism expressed in the book? What role do they play in the plot?