Stamford Bridge has become home to a dazzling array of world stars: from Ron 'Chopper' Harris and Ken Bates through Ruud Gullit, Roberto Di Matteo and Glenn Hoddle to Mourinho, Costa, John Terry, Diego Costa, David Luiz and Thibaut Courtois, there is no lack of characters to draw on for quotes, some funny, some profound and some downright absurd.