Suum cuique Suum cuique "" ( ), or "Unicuique suum", is a Latin phrase often translated as "to each his own" or "may all get their due". It has been significant in the history of philosophy and as a motto. The Latin phrase relates to an old Greek principle of justice which translates literally into English as "to each his own". Plato, in "Republic", offers the provisional definition that "justice is when everyone minds his own business, and refrains from meddling in others' affairs" (Greek: "...τὸ τὰ αὑτοῦ πράττειν καὶ μὴ πολυπραγμονεῖν δικαιοσύνη ἐστί...", 4.433a). Everyone should do according to his abilities
Set phrase Set phrase A set phrase or fixed phrase is a phrase whose parts are fixed in a certain order, even if the phrase could be changed without harming the literal meaning. This is because a set phrase is a culturally accepted phrase. A set phrase does not necessarily have any literal meaning in and of itself. Set phrases may function as idioms (e.g. "red herring") or as words with a unique referent (e.g. "Red Sea"). There is no clear dividing line between a commonly used phrase and a set phrase. It is also not easy to draw a clear distinction