Sun Tzu Quotes
The army's formation is like water. The water's formation avoids the high and rushes to the low. So an army's formation avoids the strong and rushes to the weak. Water's formation adapts to the ground when flowing. So then an army's formation adapts to the enemy to achieve victory. Therefore, an army does not have constant force, or have constant formation. Those who are able to adapt and change in accord with the enemy and achieve victory are called divine. Therefore, of the five elements, none a constant victor, of the four seasons, none has constant position; the sun has short and long spans, and the moon waxes and wanes. -- Sun Tsu, "The Art of War"