Answer:
This quote means that keeping or failing a promise depends on the situation and either could be used by a politician as per the requirement.
Explanation:
This quote has been in reference to the promises made by rulers of city-states in varying situations with either the intention of completing the promise or to fall off his words. This quote convinces people that because of the reality of an unchangeable circumstance the promises made to them could not be fulfilled. However, Machiavelli's quote on a promise is not directed to common people but rulers who make promises in very situations across their lifetime, and therefore its relevance is unique to the situation.
It is a french phrase for <span>let (it/them) </span>do or "let go"
A. True, because if someone, for example, has road rage, they can anger themselves and other drivers.