#legal theory
- One thing is to conceal, another to be silent — A famous Latin expression originating from Cicero's writings (De Officiis), literally translated as 'one thing is to conceal, another to be silent'. In a legal and moral sense, the maxim establishes a clear distinction between the deliberate, fraudulent act of hiding an essential truth that one is obligated to reveal (constituting fraud or bad faith) and simple passive silence or omission regarding facts that one is not legally or contractually bound to disclose.
- Voidability — The state or quality of a legal act being voidable; the character of a convention which, due to flaws in form or substance harming private interests, is liable to be declared null and void by a court of law, at the request of the interested party.