《百战奇略·第五卷·轻战》
如果不研究敌情就轻率前进，不进行周密谋划就贸然出战，就一定会失败。
若不计而进，不谋而战，则必为敌所败矣。
If you do not study the enemy's situation and advance recklessly, and if you do not plan carefully and fight rashly, you will definitely fail.