nbsp；東&nbsp；西&nbsp；，&nbsp；顯&nbsp；示&nbsp；出&nbsp；來&nbsp；便&nbsp；有&nbsp；了&nbsp；不&nbsp；同&nbsp；的&nbsp；名&nbsp；稱&nbsp；。&nbsp；就&nbsp；共&nbsp；同&nbsp；而&nbsp；言&nbsp；，&nbsp；它&nbsp；們&nbsp；稱&nbsp；之&nbsp；「&nbsp；玄&nbsp；」&nbsp；，&nbsp；玄&nbsp；奧&nbsp；又&nbsp；玄&nbsp；奧&nbsp；呵&nbsp；，&nbsp；它&nbsp；是&nbsp；一&nbsp；切&nbsp；變&nbsp；化&nbsp；的&nbsp；總&nbsp；門&nbsp；。&nbsp；（&nbsp；此&nbsp；兩&nbsp；者&nbsp；，&nbsp；同&nbsp；出&nbsp；而&nbsp；異&nbsp；名&nbsp；。&nbsp；同&nbsp；謂&nbsp；之&nbsp；玄&nbsp；，&nbsp；玄&nbsp；之&nbsp；又&nbsp；玄&nbsp；，&nbsp；眾&nbsp；妙&nbsp；之&nbsp；門&nbsp；。&nbsp；）《&nbsp；太&nbsp；上&nbsp；老&nbsp；君&nbsp；說&nbsp；常&nbsp；清&nbsp；靜&nbsp；妙&nbsp；經&nbsp；》&nbsp；則&nbsp；說&nbsp；：&nbsp；大&nbsp；道&nbsp；無&nbsp；形&nbsp；，&nbsp；生&nbsp；育&nbsp；天&nbsp；地&nbsp；。

道&nbsp；無&nbsp；為&nbsp；而&nbsp；無&nbsp；不&nbsp；為&nbsp；：&nbsp；道&nbsp；的&nbsp；生&nbsp；化&nbsp；功&nbsp；能&nbsp；，&nbsp；並&nbsp；不&nbsp；表&nbsp；現&nbsp；在&nbsp；它&nbsp；在&nbsp；那&nbsp；裡&nbsp；發&nbsp；號&nbsp；施&nbsp；令&nbsp；。&nbsp；它&nbsp；並&nbsp；不&nbsp；作&nbsp；為&nbsp；，&nbsp；只&nbsp；是&nbsp；讓&nbsp；萬&nbsp；物&nbsp；各&nbsp；遂&nbsp；其&nbsp；性&nbsp；，&nbsp；自&nbsp；然&nbsp；而&nbsp；然&nbsp；地&nbsp；生&nbsp；長&nbsp；發&nbsp；育&nbsp；，&nbsp；從&nbsp；無&nbsp；而&nbsp；有&nbsp；，&nbsp；又&nbsp；從&nbsp；有&nbsp；而&nbsp；無&nbsp；。&nbsp；這&nbsp；就&nbsp；叫&nbsp；做&nbsp；無&nbsp；為&nbsp；。&nbsp；一&nbsp；切&nbsp；事&nbsp；物&nbsp；都&nbsp；有&nbsp；始&nbsp；有&nbsp；終&nbsp；，&nbsp；其&nbsp；功&nbsp；能&nbsp；都&nbsp；要&nbsp；通&nbsp；過&nbsp；一&nbsp；定&nbsp；的&nbsp；作&nbsp；為&nbsp；來&nbsp；實&nbsp；現&nbsp；。&nbsp；但&nbsp；正&nbsp；因&nbsp；為&nbsp；此&nbsp；，&nbsp；其&nbsp；功&nbsp；能&nbsp；都&nbsp；是&nbsp；有&nbsp；限&nbsp；的&nbsp；，&nbsp；不&nb