Tao Te Ching · Ch. 21

孔德之容,惟道是從。道之為物,惟恍惟惚。惚兮恍兮,其中有象;恍兮惚兮,其中有物。窈兮冥兮,其中有精;其精甚真,其中有信。自今及古,其名不去,以閱眾甫。吾何以知眾甫之狀哉?以此。

Kǒng dé zhī róng, wéi dào shì cóng. Dào zhī wéi wù, wéi huǎng wéi hū. Hū xī huǎng xī, qí zhōng yǒu xiàng; Huǎng xī hū xī, qí zhōng yǒu wù. Yǎo xī míng xī, qí zhōng yǒu jīng; Qí jīng shèn zhēn, qí zhōng yǒu xìn. Zì jīn jí gǔ, qí míng bù qù, yǐ yuè zhòng fǔ. Wú hé yǐ zhī zhòng fǔ zhī zhuàng zāi? Yǐ cǐ.

The grandest virtue follows only the Tao. As a thing, the Tao is vague and elusive. Elusive and vague, within it there are forms. Vague and elusive, within it there are things. Deep and dark, within it there is essence; that essence is utterly real, within it there is trust. From the present back to antiquity, its name has not departed — by it we perceive the beginnings of all things. How do I know the shape of all beginnings? By this.

— Tao Te Ching 21

Source: Wang Bi edition (Chinese) + Hanyu Pinyin transliteration