Tao Te Ching · Ch. 54

善建者不拔,善抱者不脫,子孫以祭祀不輟。修之於身,其德乃真;修之於家,其德乃餘;修之於鄉,其德乃長;修之於邦,其德乃豐;修之於天下,其德乃普。故以身觀身,以家觀家,以鄉觀鄉,以邦觀邦,以天下觀天下。吾何以知天下然哉?以此。

Shàn jiàn zhě bù bá, shàn bào zhě bù tuō, zǐ sūn yǐ jì sì bù chuò. Xiū zhī yú shēn, qí dé nǎi zhēn; Xiū zhī yú jiā, qí dé nǎi yú; Xiū zhī yú xiāng, qí dé nǎi cháng; Xiū zhī yú bāng, qí dé nǎi fēng; Xiū zhī yú tiān xià, qí dé nǎi pǔ. Gù yǐ shēn guān shēn, yǐ jiā guān jiā, yǐ xiāng guān xiāng, yǐ bāng guān bāng, yǐ tiān xià guān tiān xià. Wú hé yǐ zhī tiān xià rán zāi? Yǐ cǐ.

What is well planted cannot be uprooted; what is well held cannot slip away — and descendants will honor it without ceasing. Cultivate it in yourself, and Virtue becomes real. Cultivate it in your family, and Virtue becomes abundant. Cultivate it in your village, and Virtue becomes lasting. Cultivate it in your state, and Virtue becomes flourishing. Cultivate it across the world, and Virtue becomes universal. Therefore: know yourself through self-observation, know your family through family-observation, know your village through village-observation, know your state through state-observation, know the world through world-observation. How do I know the world is this way? By this.

— Tao Te Ching 54

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