“[The Old Man and the Young Man had been conversing. The Old Man had asserted that the human being is merely a machine, and nothing more. The Young Man objected, and asked him to go into particulars and furnish his reasons for his position.] Old Man. What are the materials of which a steam-engine is made? Young Man. Iron, steel, brass, white-metal, and so on.” Mark Twain’s immortal work What is Man? in its original language…