The crash of thunder and the blustering wind both come without design. Perfect enjoyment is the overflowing satisfaction of the nature. Perfect stillness is the entire disinterestedness of it. When Dao seems to be most wrapt up in Itself, Its operation is universal in its character. It is by its breath that we control whatever creature we grasp.
Life is the root of death, and death is the root of life.
Kindness springs from injury and injury springs from kindness. He who sinks himself in water or enters amidst fire brings destruction on himself. The method of spontaneity proceeds in stillness, and so it was that Dao, earth, and all things were produced. The method of Dao and earth proceeds gently and gradually, and thus it is that the Yin and Yang overcome each other by turns. The one takes the place of the other, and so change and transformation proceed accordingly.