"The love of Heaven and Earth is impartial, and they demand nothing from the myriad things. The love of the sages is impartial, and they demand nothing from the people. The cooperation between Heaven and Earth is much like how a bellows works! Within the emptiness there is limitless potential; in moving, it keeps producing without end. Complaining too much only leads to misfortune. It is better to stay in the center of serenity."