In desperate position, you must fight.

So a military force has no constant formation, water has no constant shape: the ability to gain victory by changing and adapting according to the opponent is called genius.

What is of the greatest importance in war is extraordinary speed: One cannot afford to neglect opportunity.

Plan for what is difficult while it is easy, do what is great while it is small.

First learn to become invincible, then wait for your enemy's moment of vulnerability.

When the leader is morally weak and his discipline not strict, when his instructions and guidance are not enlightened, when there are no consistent rules, neighboring rulers will take advantage of this.

There are not more than five primary colours, yet in combination they produce more hues than can ever been seen.