《百战奇略·第四卷·守战》
就是说，当了解到自己没有立即战胜敌人的条件时，我就坚守不与敌人交战，等到敌人出现可以被我战胜的条件时，就不失时机地出兵进攻它，这样作战就没有不胜利的。
知己未有可胜之理，则我且固守，待敌可破之时，则出兵以攻之，无有不胜。
That is to say, when I realize that I don't have the conditions to immediately defeat the enemy, I will stick to not fighting the enemy. When the enemy shows conditions that I can defeat, I will attack it without losing the opportunity, so there will be no failure in combat.