A passed pawn increase in strength as the number of pieces on the board diminishes.

Chess is a very logical game and it is the man who can reason most logically and profoundly in it that ought to win.

To improve at chess you should in the first instance study the endgame.

Most players ... do not like losing, and consider defeat as something shameful. This is a wrong attitude. Those who wish to perfect themselves must regard their losses as lessons and learn from them what sorts of things to avoid in the future.

Chess books should be used as we use glasses: to assist the sight, although some players make use of them as if they thought they conferred sight

Your Soviet players are cheating, losing the games on purpose to my rival, Botvinnik, in order to increase his points on the score. - (to Stalin in Moscow 1936 where he finished in 1st place, 1 point ahead of Botvinnik)

The weaker the player the more terrible the Knight is to him, but as a player increases in strength the value of the Bishop becomes more evident to him, and of course there is, or should be, a corresponding decease in his estimation of the value of the Knight as compared to the bishop.