The art of war is governed by five constant factors, all of which need to be taken into account. Heaven signifies night and day, coid and heat, times and seasons. The Commander stands for the virtues of wisdom, sincerity, benevolence, courage, and strictness. By Method and discipline are to be understood the marshaling of the army in its proper subdivisions, tkte gradations of rank among the officers, the maintenance of roads by which supplies may reach the army, and the control of military expenditure. These five factors should be familiar to every general.
All warfare is based on deception.
Hold out baits to entice the enemy. Feign disorder, and crush him. If he is secure at all points, be prepared for him. If he is in superior strength, evade him. If your opponent is of choleric temper, seek to irritate him.