Tao Te Ching
10

When the intelligent and animal souls are held together in one embrace, they can be kept from separating. When one gives undivided attention to the (vital) breath, and brings it to the utmost degree of pliancy, he can become as a (tender) babe. When he has cleansed away the most mysterious sights (of his imagination), he can become without a flaw.

In loving the people and ruling the state, can he not proceed without any (purpose of) action? In the opening and shutting of his gates of heaven, can he not do so as a female bird? While his intelligence reaches in every direction, can he not (appear to) be without knowledge?

(The Tao) produces (all things) and nourishes them; it produces them and does not claim them as its own; it does all, and yet does not boast of it; it presides over all, and yet does not control them. This is what is called 'The mysterious Quality' (of the Tao).