A man's excellence is like that of water; It benefits all things without striving; It takes to the low places shunned by men. Water is akin to Tao. . . . In all the earth nothing weaker than water, Yet in attacking the hard, nothing superior, Nothing so certain in wearing down strength: There is no way to resist it. Note then: The weak conquer the strong, The yielding outlast the aggressors.
LaoziUnderstanding others is knowledge, Understanding oneself is enlightenment; Conquering others is power, Conquering oneself is strength.
LaoziA man is born gentle and weak. At death, he is hard and stiff. Green plants are tender and filled with sap. At death, they are withered and dry. Therefore, the stiff and unbending is the disciple of death, and the gentle and yielding is the disciple of life.
Laozi