“There was something undetermined. It was before the birth of Heaven and Earth. That something was plunged into an immense silence and it was a measureless void.
It exists by itself and is preserved without change. It can be considered the Mother of Universe. Since I do not know its name, I will call it Tao”
Lao-tseu, Tao-Te-King 25.1-4,6-8 (transl. by Tao Jian Wen)