Garry Kasparov — Celebrity born on April 13, 1963,

Garry Kimovich Kasparov is a Russian chess Grandmaster, former World Chess Champion, writer, and political activist, considered by many to be the greatest chess player of all time. From 1986 until his retirement in 2005, Kasparov was ranked world No. 1 for 225 out of 228 months. His peak rating of 2851, achieved in 1999, was the highest recorded until being passed by Magnus Carlsen in 2013. Kasparov also holds records for consecutive professional tournament victories and Chess Oscars... (wikipedia)

Chess helps you to concentrate, improve your logic. It teaches you to play by the rules and take responsibility for your actions, how to problem solve in an uncertain environment.
I wouldn't overestimate the importance of my popularity in the country and abroad but at the end of the day it's not as important because I believe that my presence here could make some difference and it could encourage people.
It was not about losing my mental power; it's about not feeling good about my contribution to the game.
Chess is mental torture.
I may play some exhibition games so I don't want to quit the game of chess completely. I just decided and it's a firm decision not to play competitive chess anymore.