Strategically important points should be overprotected. If the pieces are so engaged, they get their regard in the fact that they will then find themselves well posted in every respect.
Aron NimzowitschChess strategy as such today is still in its diapers, despite Tarrasch's statement 'We live today in a beautiful time of progress in all fields'. Not even the slightest attempt has been made to explore and formulate the laws of chess strategy.
Aron NimzowitschThe great mobility of the King forms one of the chief characteristics of all endgame strategy. In the middlegame the King is a mere 'super', in the endgame on the other hand - on of the 'principals'. We must therefore develop him, bring him nearer to the fighting line.
Aron Nimzowitsch