Victory is reserved for those who are willing to pay its price.

It is essential to seek out enemy agents who have come to conduct espionage against you and to bribe them to serve you. Give them instructions and care for them. Thus doubled agents are recruited and used.

Hold out baits to entice the enemy. Feign disorder, and crush him.

It is ten thousand times cheaper to pay the best spies lavishly than even a tiny army poorly.

What is of the greatest importance in war is extraordinary speed: One cannot afford to neglect opportunity.

Victory is reserved for those who are willing to pay its price.

What enables the wise sovereign and the good general to strike and conquer, and achieve things beyond the reach of ordinary men, is foreknowledge.