The Living Are Soft
The Teaching
A person is born gentle and weak. At death, stiff and hard. Green plants are tender and filled with sap. At death, withered and dry.
Therefore the stiff and unbending is a disciple of death. The gentle and yielding is a disciple of life.
Thus an army without flexibility never wins a battle. A tree that is unbending is easily broken.
The hard and strong will fall. The soft and weak will overcome.
Commentary
This may be the most physically precise teaching in the entire Tao Te Ching. Laozi is not speaking metaphorically, he is observing biology. The new life is soft: the newborn, the green shoot, the fresh branch that bends without breaking. The old and dead are hard. Softness is not a property of weakness. It is a property of life itself.
The spiritual corollary is exact. The ego's insistence on remaining as it is, on controlling outcomes, on maintaining its fixed story about who it is and what it needs, is the biological pattern of dying applied to consciousness. The rigidity that precedes physical death has its psychological equivalent in the grasping that resists the flow.
Alan Watts's river image and this teaching are the same observation from different angles. The person swimming against the current is choosing stiffness. The water that finds its course is choosing softness, the willingness to be shaped by the terrain.
The army without flexibility never wins a battle. This is Sun Tzu and the Tao Te Ching simultaneously. The martial arts traditions of China and Japan both express this physically: the skilled fighter yields to the attack rather than opposing it. Judo. Aikido. Tai chi. The body learning the lesson of Chapter 76.