Suum cuique

"Suum cuique" is a Latin phrase that means "to each his own". It's like when you and your friend both get a cookie, but you like chocolate chip and your friend likes oatmeal raisin. You both get what you like and that's fair because everyone is different and likes different things. So suum cuique means that everyone should get what is fair and right for them, according to their own preferences and needs.