òmne àctum ab intentiòne agèntis est judicàndum - every action should be judged from the intention of the actor.

òmni exceptiòne majòres - above all criticism, excellent.

òmnium consènsu - by common consent.

ònus probàndi - burden of proof.

optimus intèrpres rèrum ùsus - custom is the best interpretation of things.

opìnio jùris gentium - international legal views.

agreed pact quae néque - згоди, якы... .

pàcta non obligant nis gèntes inter quas ìnita - contracts do not bind anyone except the persons who participate in them.

pacta tertiis nec nocent nec prosunt - agreements do not harm or benefit third parties.

par in pàrem impèrium non habet - an equal has no power over an equal.