(literary) four virtues expected of women in traditional Chinese culture, consisting of morality, proper speech, modest appearance, and diligent housework
four fundamentals
(literary) four core Confucian values for men, consisting of filial piety, brotherly respect, loyalty, and trustworthiness
four qualities of Nirvana
(Buddhism) four attributes of Mahayana Nirvana, consisting of permanence, bliss, self, and purity
four attributes of Qian
(literary) four qualities of the first hexagram in the 易经yìjīng, which are origination, prosperity, benefit, and perseverance