"All that matters on the chessboard is good moves"
Bobby Fischer
"A player surprised is half beaten"
Proverb
"The winner of the game is the player who makes the next-to-last mistake"
Tartakover
"When in doubt... play Chess!"
Tevis
"On the chessboard, lies and hypocrisy do not survive long"
Lasker
"Chess is played with the mind and not with the hands!"
Kahn
"The hardest game to win is a won game"
Lasker
"Without error there can be no brilliancy"
Lasker
"Chess is everything: art, science and sport"
Karpov