Lao Tzu (Tao Te Ching) ~ THE Tao is like an empty bowl...

THE Tao is like an empty bowl,
Which in being used can never be filled up.
Fathomless, it seems to be the origin of all things.
It blunts all sharp edges,
It unties all tangles,
It harmonizes all lights,
It unites the world into one whole.
Hidden in the deeps,
Yet it seems to exist forever.
I do not know whose child it is;
It seems to be the common ancestor of all, the father of things.


Lao Tzu (Tao Te Ching) chp. 4


Source:

http://taoteching.org.uk/index.php?c=4&a=John+C.+H.+Wu