I read somewhere that everybody on this planet is separated by only six other people. Six degrees of separation. Between us and everybody else on this planet. The President of the United States. A gondolier in Venice. Fill in the names. I find that A) tremendously comforting that we're so close and B) like Chinese water torture that we're so close. Because you have to find the right six people to make the connection. It's not just big names, it's anyone. A native in a rainforest. A tierra del fuegan. An Eskimo. I am bound to everyone on this planet by trail of six people. It's a profound thought.... How every person is a new door, opening up into other worlds. Six degrees of separation between me and everyone else on this planet. But to find the right six people.
  --Ouisa Kitteredge, from the play.
Six Degrees of Separation is John Guare's 1990 play of race, class, and manners, based on the true story of a man who scams an upscale New York couple by passing himself off as the son of Sidney Poitier. It won it won the New York Drama Critics Circle Award, the Olivier Award in London, and the Obie Award for best play. In 1993 it was made into a movie with Stockard Channing, Donald Sutherland, Will Smith, and Anthony Michael Hall, directed by Fred Schepisi from Guare's own adaptation. Guare's play is credited with popularizing the phrase, but credits Guglielmo Marconi, not Stanley Milgram, for inspiring his play.