The Tao is empty When utilized, it is not filled up So deep! It seems to be the source of all things   It blunts the sharpness Unravels the knots Dims the glare Mixes the dusts   So indistinct! It seems to exist I do not know whose offspring it is Its image is the predecessor of the Emperor   Reflection Everything that can be known is swallowed by the Tao. That is, everything that has ever been known, all...