Of all those in the army close to the commander none is more intimate than the secret agent; of all rewards none more liberal than those given to secret agents; of all matters none is more confidential than those relating to secret operations.
Sun TzuAppear at points which the enemy must hasten to defend; march swiftly to places where you are not expected.
Sun TzuThose who would wage war, should first eliminate all domestic enemies before proceeding to attack the external foe.
Sun TzuIn peace prepare for war, in war prepare for peace. The art of war is of vital importance to the state. It is matter of life and death, a road either to safety or to ruin. Hence under no circumstances can it be neglected.
Sun Tzu