Thirty spokes will converge
In the HUB of a wheel
But the use of the cart
Will depend on the part
Of the hub that is void
With a wall around
A clay bowl is molded
But the use of the bowl
Will depend on the part
Of the bowl that is void.
Cut out the windows and doors
In the house as you build
But the use of the house
Will depend on the space
In the walls that is void
So advantage is had
From whatever is there
But usefulness arise
From whatever is not
The Tao Te Ching
