Audi alteram partem or audiatur et altera pars - Refers to the idea that one cannot be fairly judged unless the cases for and against them have been heard.⏎
Actori incumbit onus probatio - "On the plaintiff rests the proving". The burden of proof falls to the plaintiff, claimant, or petitioner.⏎
Dura lex, sed lex - "The law [is] harsh, but [it is] the law". It follows from the principle of the rule of law that even draconian laws must be followed and enforced; if one disagrees with the result, one must seek to change the law.⏎
Cuius est solum eius est usque ad coelum et ad inferos - Used in reference to the rights of property owners to the air above, and land below, their property.⏎
Delegatus non potest delegare - That which has been delegated cannot delegate further.⏎