吾不知其名，字之日道， 强为之名日 大。 大曰逝，逝曰远，远曰反。 I do not know its name,and I give it the designation of the Tao (the Way or Course). Making an effort (further)to give it a name I call it The Great. Great,it passes on (in constant flow). Passing on,it becomes remote. Having become remote,it returns