four Confucian injunctions 孝悌忠信 (for men), namely: piety 孝 to one's parents, respect 悌 to one's older brother, loyalty 忠 to one's monarch, faith 信 to one's male friends
the four Confucian virtues for women of morality 德[de2], physical charm 容, propriety in speech 言 and efficiency in needlework 功
Definitions (Wiktionary)
noun, literary
Used other than figuratively or idiomatically: see 四 (sì), 德 (dé).
noun, literary
the "four womanly virtues" (according to traditional Chinese culture, i.e. wifely ethics, wifely speech, wifely manners/appearance, and wifely work)