《周易注疏》卷一〈乾〉~2~
《文言》曰:「元」者,善之長也;「亨」者,嘉之會(huì)也;「利」者,義之和也;「貞」者,事之干也。君子體仁,足以長人;嘉會(huì),足以合禮;利物,足以和義;貞固,足以干事。君子行此四德者,故曰「乾:元、亨、利、貞。」唐·孔穎達(dá)疏:「亨者,嘉之會(huì)者,嘉,美也。言天能通暢萬物,使物嘉美之會(huì)聚,故云嘉之會(huì)也?!?/span>