Res ipsa loquitur - "The thing speaks for itself." Used in tort law when there is no proof of what caused the harm, but it is most likely only the thing that could have caused the harm.⏎
Sententia quae in rem iudicatam transit, pro veritate habetur - When a definitive sentence is declared, it is considered to be the truth. In the case of a sentence in rem iudicatam (that finally consents to consider a judgement completed), its content will then be the only legally relevant consideration of a fact.⏎
Res inter alios acta vel iudicata, aliis nec nocet nec prodocet - What has been agreed/decided between people (a specific group) can neither benefit nor harm a third party (meaning: two or more people cannot agree amongst each other to establish an obligation for a third party who was not involved in the negotiation; furthermore, any benefit that may be established will have to be accepted by the third party before it can be implemented).⏎