What makes a kingdom great is its being like a down-flowing river,--the central point towards which all the smaller streams under Heaven converge; or like the female throughout the world, who by quiescence always overcomes the male. And quiescence is a form of humility.
The generals have a saying: "Rather than make the first move it is better to wait and see. Rather than advance an inch it is better to retreat a yard." This is called going forward without advancing, pushing back without using weapons. There is no greater misfortune than underestimating your enemy. Underestimating your enemy means thinking that he is evil. Thus you destroy your three treasures and become an enemy yourself. When two great forces oppose each other, the victory will go to the one that knows how to yield.
The Tao gives birth to One. One gives birth to Two. Two gives birth to Three. Three gives birth to all things. All things have their backs to the female and stand facing the male. When male and female combine, all things achieve harmony. Ordinary men hate solitude. But the Master makes use of it, embracing his aloneness, realizing he is one with the whole universe.