The opportunity of defeating the enemy is provided by the enemy himself.
Opportunities increase as they are taken.
Humble words and increased preparations are signs that the enemy is about to advance. Violent language and driving forward as if to the attack are signs that he will retreat.
Ground which can be freely traversed by both sides is called accessible.
If fighting is sure to result in victory, then you must fight.
When he utilizes combined energy, his fighting men become as it were like unto rolling logs or stones. For it is the nature of a log or stone to remain motionless on level ground, and to move when on a slope; if four-cornered, to come to a standstill, but if round-shaped to go rolling down.