The core of Dao is non-interference

Heaven and Earth do not play favorites; they treat all things like sacrificial straw dogs. The sage does not play favorites; he treats people like sacrificial straw dogs. Isn't the space between Heaven and Earth like a bellows? Though empty, it never runs dry. The more you work it, the more wind it gives. Too much talking often gets you into trouble. Better to hold to the quiet, empty center.