Spies cannot be usefully employed without a certain intuitive sagacity.

Apparent confusion is a product of good order; apparent cowardice, of courage; apparent weakness, of strength.

In all history, there is no instance of a country having benefited from prolonged warfare. Only one who knows the disastrous effects of a long war can realize the supreme importance of rapidity in bringing it to a close.

He will win who knows how to handle both superior and inferior forces.

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.

Victory is the main object in war.

We may distinguish six kinds of terrain, to wit: (1) Accessible ground; (2) entangling ground; (3) temporising ground; (4) narrow passes; (5) precipitous heights; (6) positions at a great distance from the enemy.