Dubia in meliorem partem interpretari debent - "Doubtful things should be interpreted in the best way". Often spoken as "to give the benefit of the doubt".⏎
Cogitationis poenam nemo patitur - No one suffers punishment for mere intent.⏎
Contra non valentem agere nulla [or non] currit praescriptio - A statute of limitation does not run against those who cannot act; this is the basis of the American discovery rule limiting prescriptive limitation periods.⏎
Actori incumbit onus probatio - "On the plaintiff rests the proving". The burden of proof falls to the plaintiff, claimant, or petitioner.⏎