modus vivèndi - a way of life, a temporary agreement [aiming at a temporary compromise settlement of any issue].
mutàtis mutàndis - with the replacement of what is to be replaced; taking into account the relevant differences; with changes resulting from circumstances; with the necessary changes.
nam sìlent lèges ìnter àrma - because laws are silent among weapons.
negotiorum gestio - managing other people's affairs without a mandate.