Chess is more than a game or ...

Chess is more than a game or a mental training. It is a distinct attainment. I have always regarded the playing of chess and the accomplishment of a good game as an art, and something to be admired no less than an artist's canvas or the product of a sculptor's chisel. Chess is a mental diversion rather than a game. It is both artistic and scientific.
 Jose Raul Capablanca

Quotes from the same author

You may learn much more from a game you lose than from a game you win. You will have to lose hundreds of games before becoming a good player.
 Jose Raul Capablanca
An exception was made with respect to me, because of my victory over Marshall. Some of the masters objected to my entry ... one of them was Dr. Bernstein. I had the good fortune to play him in the first round., and beat him in such fashion as to obtain the Rothschild prize for the most brilliant game ... a profound feeling of respect for my ability remained throughout the rest of the contest.
 Jose Raul Capablanca
People who want to improve should take their defeats as lessons, and endeavor to learn what to avoid in the future. You must also have the courage of your convictions. If you think your move is good, make it.
 Jose Raul Capablanca