Through the characters of Dr. Jekyll and Mr. Hyde, the author of Robert Louis Stevenson’s book The Strange Case of Dr. Jekyll and Mr. Hyde explores difficult concepts about good and evil. Stevenson examines the duality of human nature and the conflict between good and evil through their deeds and interactions.

One of the key ways that Stevenson presents the ideas of good and evil is through the physical appearance of Dr. Jekyll and Mr. Hyde. Dr. Jekyll is described as a “large, well-made, smooth-faced man of fifty with something of a slyish cast, who enjoys a reputation as a man of the most urbane manners” (Chapter 1).