Rapidity is the essence of war: take advantage of the enemy's unreadiness, make your way by unexpected routes, and attack unguarded spots.

兵之情主速，乘人之不及。由不虞之道，攻其所不戒也。

" Aw" ! was the answer, dropped at intervals by each according to his degree of unreadiness.

“啊” ！是答案，根据每个人的不准备程度每隔一段时间就会下降。