The use of Emptiness

"Heaven and earth have no special love. They regard all existing beings as sacrificial grass-dogs (figures of grass made for a temporary purpose). The sage has no special love. He regards the people as grass-dogs. The space between heaven and earth may be compared to a bellows. Though empty, it never collapses, and the more it is exercised the more it brings forth. But the man of much talk is frequently reduced to silence (exhausted). There is nothing like keeping the inner man."