No nation has ever benefited from a prolonged war.

Subjugating the enemy's army without fighting is the true pinnacle of excellence.

So the principles of warfare are: Do not depend on the enemy not coming, but depend on our readiness against him. Do not depend on the enemy not attacking, but depend on our position that cannot be attacked.

The good fighter is able to secure himself against defeat, but cannot make certain of defeating the enemy.

They [spies] cannot be properly managed without benevolence and straightforwardness.

Engage people with what they expect; it is what they are able to discern and confirms their projections. It settles them into predictable patterns of response, occupying their minds while you wait for the extraordinary moment - that which they cannot anticipate.

All war is deception.