“There is no instance of a nation benefitting from prolonged warfare.”

“Success in warfare is gained by carefully accommodating ourselves to the enemy's purpose.”

“The end and aim of spying in all its five varieties is knowledge of the enemy; and this knowledge can only be derived, in the first instance, from the converted spy. Hence it is essential that the converted spy be treated with the utmost liberality.”

“who does not know the evils of war cannot appreciate its benefits”

“All warfare is based on deception. Hence, when we are able to attack, we must seem unable; when using our forces, we must appear inactive; when we are near, we must make the enemy believe we are far away; when far away, we must make him believe we are near.”

“licited from spirits; it cannot be obtained inductively from experience, nor by any”

“If you are near the enemy, make him believe you are far from him.If you are far from the enemy, make him believe you are now”