1. a rule of ethical conduct, usually phrased "Do unto others as you would have them do unto you," or, as in the Sermon on the Mount, "Whatsoever ye would that men should do to you, do ye even so unto them." Matt. 7:12; Luke 6:31.
2. any philosophy, guiding principle, or ideal of behavior, as in a discipline, pursuit, or business: The protesters agreed that their golden rule would be "no violence."
[ 1800-10 ]