I keep on fighting as long as my opponent can make a mistake.
Chess is, above all, a fight.
By some ardent enthusiasts Chess has been elevated into a science or an art. It is neither; but its principal characteristic seems to be - what human nature mostly delights in - a fight.
Chess is neither a science nor an art. It is what human nature most delights in--a fight.
A chess game, after all, is a fight in which all possible factors must be made use of, and in which a knowledge of the opponent's good and bad qualities is of the greatest importance.