Show me three lines of the opening theory moves and I will prove to you that two of them are incorrect.
Emanuel LaskerThe laws of chess do not permit a free choice: you have to move whether you like it or not.
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