Enough detail to make the reader believe you
Answer:
I means that freedom comes at a cost. You have to fight for it. In order for the US to win freedom from Britain we went into war, people lives were lost, but we earned out freedom.
I would think it's one of the last two. It is a news article which means it would be important to verify facts and information so that it would be considered trustworthy and you could do this through evidence.
Hope that helps :)
It was the French philosopher and writer, Jean-Jacques Rousseau.