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.
Don't imagine that you'll discover {the truth} by accumulating more knowledge. Knowledge creates doubt, and doubt makes you ravenous for more knowledge. You can't get full eating this way.
Those who know do not speak; Those who speak do not know. Stop up the openings, Close down the doors, Rub off the sharp edges. Unravel all confusion. Harmonize the light, Give up contention: This is called finding the unity of life.