Short for
三纲五常 — the Three Bonds (ruler-subject, father-son, husband-wife) and Five Constants (
仁 benevolence,
义 righteousness,
礼 propriety,
智 wisdom,
信 trust). Formalized by the Han Confucian Dong Zhongshu (
董仲舒) as the moral scaffolding of the imperial order; heavily criticized by modern reformers.