《幼学琼林·卷三·人事》
说过的话都算数，称为 金石语 ；乡里人公正的评论，称为 月旦评 。
言辞不爽，谓之金石语；乡党公论，谓之月旦评。
Promises that are always kept are called "words engraved in gold and stone," while impartial comments made by locals are called "Monthly Reviews."