He who wishes to fight must first count the cost

We cannot enter into alliances until we are acquainted with the designs of our neighbors. We are not fit to lead an army on the march unless we are familiar with the face of the country.

All war is based on deception.

Sweat more during peace: bleed less during war

Go into emptiness, strike voids, bypass what he defends hit him where he does not expect you.

Appear at points which the enemy must hasten to defend; march swiftly to places where you are not expected.

When one treats people with benevolence, justice and righteousness, and reposes confidence in them, the army will be united in mind and all will be happy to serve their leaders.