If your enemy is secure at all points, be prepared for them. If they are in superior strength, evade them. If your opponent is temperamental, seek to irritate them. Pretend to be weak so that they may grow arrogant. If they are taking their ease, give them no rest. If their forces are united, separate them. If sovereign and subject are in accord, put a division between them. Attack your enemy where they are unprepared. Appear where you are not expected .