The Strange Case of Dr. Jekyll and Mr. Hyde  by Robert Louis Stevenson“I learned to recognise the thorough and primitive duality of man; I saw that, of the two natures that contended in the field of my consciousness, even if I could rightly be said to be either, it was only because I was radically both.”   ― Robert Louis Stevenson, Dr. Jekyll and Mr. Hyde The Strange Case of Dr. Jekyll and Mr.