+1
There are others who can do the political work that Kasparov is doing, but there is no one who can do what he can for chess. Imagine how many brilliant musical pieces the world is forever deprived of because Mozart died at such a young age. Similarly, if Kasparov never returns to chess, imagine how many more beautiful works of art like these the world might have had, but will forever be deprived of.
http://www.chessgames.com/perl/chessgame?gid=1018625
http://www.chessgames.com/perl/chessgame?gid=1011478
Other top modern players are not as creative as Kasparov. I hope that he will return and fill the chess databases with more beautiful works of art.
Kasparov n'est plus un joueur d'échecs c'est avant tout un homme politique.