The men who are great live with that which is substantial, they do not stay with that which is superficial; they abide with realities, they do not remain with what is showy. The one they discard, the other they hold.
LaoziWe join spokes together in a wheel, but it is the center hole that makes the wagon move. We shape clay into a pot, but it is the emptiness inside that holds whatever we want. We hammer wood for a house, but it is the inner space that makes it livable. We work with being, but non-being is what we use.
Laozi