The spot where we intend to fight must not be made known; for then the enemy will have to prepare against a possible attack at several different points; and his forces being thus distributed in many directions, the numbers we shall have to face at any given point will be proportionately few.

If the enemy leaves a door open, you must rush in.

Attack where he is unprepared; sally forth when he does not expect you.

All war is based on deception.

If you know neither the enemy nor yourself, you will succumb in every battle

Without local guides, your enemy employs the land as a weapon against you.

The military has no constant form, just as water has no constant shape - adapt as you face the enemy, without letting them know beforehand what you are going to do.