Tao Te Ching: Chapter 32
To him who holds in his hands the Great Image (of the invisible Tao), the whole world repairs. Men resort to him, and receive no hurt, but (find) rest, peace, and the feeling of ease.
Music and dainties will make the passing guest stop (for a time). But though the Tao as it comes from the mouth, seems insipid and has no flavour, though it seems not worth being looked at or listened to, the use of it is inexhaustible.