Unless you understand the actual circumstances of war,its nature and its relations to other things,you will not know the laws of war,or know how to direct war,or be able to win victory.

• 不懂得它的情形，它的性质，它和它以外事情的关联，就不知道战争的规律，就不知道如何指导战争，就不能打胜仗。