Do not always be thinking of attack! Moves that safeguard your position are often far more prudent.
Aron NimzowitschIn the middlegame, the king is merely an extra, but in the endgame, he is one of the star actors.
Aron NimzowitschThe main Objective of any operation in an open file is the eventual Occupation of the seventh or eighth Rank.
Aron NimzowitschStrategically 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 Nimzowitsch