In the treatise Daodejing (4th—3rd century BCE) are set out the foundations of Daoism and the philosophy of Laozi.
At the center of the doctrine is the teaching of the great Dao — the universal Law and the Absolute. The Dao rules everywhere and in everything, always and without limit.
No one created it, yet everything comes from it. Invisible and inaudible, inaccessible to the organs of the senses, constant and inexhaustible, nameless and formless — it gives rise to everything in the world, providing it with name and form. Even the Great Heaven follows the Dao.
To know the Dao, to follow it, to merge with it — this is the meaning, the goal, and the happiness of life. The Dao manifests itself through its emanation — through de; and if the Dao creates everything, then de sustains it.
The treatise insists on the inexpressibility of the Dao, which is the beginning of all things. For understanding the Dao, non-action, silence, calmness, moderation, and lack of passionlessness are recommended, granting union with the Dao.
The audiobook includes two versions of the translation from Chinese: the classic by Yang Xingshun and S. Mitchell, made comparatively recently.