He who is not sage and wise, humane and just, cannot use secret agent.s. And he who is not delicate and subtle cannot get the truth out of them.

All warfare is based on deception. Therefore, when capable, feign incapacity; when active, inactivity. When near, make it appear that you are far away; when far away, that you are to lure him; feign disorder and strike him. When he concentrates, prepare against him; where he is strong, avoid him. Anger his general and confuse him. Pretend inferiority and encourage his arrogance.

The one who figures on victory at headquarters before even doing battle is the one who has the most strategic factors on his side.

If a general shows confidence in his men but always insists on his orders being obeyed, the gain will be mutual.

Of old the expert in battle would first make himself invincible and then wait for his enemy to expose his vulnerability.

He who knows his enemy and himself well will not be defeated easily.

Know the enemy and know yourself.