Bud Ratliff

The Psychological Advantage

When the enemy troops are in high spirits, and, although facing you, do not join battle for a long time, nor leave, you must thoroughly investigate the situation.
- Sun Tzu

During the early morning spirits are keen, during the day they flag, and in the evening thoughts turn toward home.
- Sun Tzu

If the enemy general is obstinate and prone to anger, insult and enrage him, so that he will be irritated and confused, and without a plan will recklessly advance against you.
- Chang Yü

Frequently having a clear understanding of an opponent’s psychology is more important in preparing for battle than other factors. The enemy army’s level of discipline, whether its commander is arrogant or timorous, whether the army is fresh and enthusiastic or dull and tired - any one of these considerations could be decisive of itself.