The offensive is the only means of destroying the enemy and is also the principal means of self-preservation,while pure defence and retreat can play only a temporary and partial role in self-preservation and are quite useless for destroying the enemy.

• 进攻是消灭敌人的唯一手段，也是保存自己的主要手段，单纯的防御和退却，对于保存自己只有暂时的部分的作用，对于消灭敌人则完全无用。