title: Tao Te Ching 6 - empty yet inexhaustible
Stephen Mitchell Translation
The Tao is called the Great Mother: empty yet inexhaustible, it gives birth to infinite worlds.
It is always present within you. You can use it any way you want. - Stephen Mitchell
Other translations I like
The valley spirit, undying Is called the Mystic Female1
The gateway of the Mystic Female is called the root of Heaven and Earth2
It flows continuously, barely perceptible When utilized, it is never exhausted - Derek Lin