As Rousseau could not compose without his cat beside him, so I cannot play chess without my king's bishop. In its absense the game to me is lifeless and void. The vitalizing factor is missing, and I can devise no plan of attack.
Siegbert TarraschIn a rook and pawn ending, the rook must be used aggressively. It must either attack enemy pawns, or give active support to the advance of one of its own pawns to the queening square.
Siegbert Tarrasch