《棋经十三篇·合战篇》
与其舍不得丢子而求活，不如丢子而取得大局的优势。与其漫无目标地勉强行棋，不如顺其自然地自行补救。
与其恋子以求生，不若弃子而取势，与其无势而强行，不若因之而自补。
It is better to lose a piece and gain a big advantage in the overall situation than to be reluctant to lose a piece and seek life. It is better to make up for it yourself than to play blindly and reluctantly.