To refer to the oft mooted question, "Which piece is stronger, the Bishop or the Knight?" it is clear that the value of the Bishop undergoes greater changes than that of the Knight.
Emanuel LaskerSteinitz was a thinker worthy of a seat in the halls of a university. A player, as the world believed he was, he was not; his studious temperament made that impossible; and thus he was conquered by a player and in the end little valued by the world, he died.
Emanuel LaskerIn mathematics, if I find a new approach to a problem, another mathematician might claim that he has a better, more elegant solution. In chess, if anybody claims he is better than I, I can checkmate him.
Emanuel LaskerWhen Alekhine recognizes the weakness in his position he has a tendency to become very aggressive. Patient defence is not for him if he can see the slightest chance of creating an attack. Yet sound strategy often demands that you submit to the opponent's will so as to strengthen your weaknesses and get rid of defects in your game.
Emanuel Lasker