What is the central idea of the passage? just like a simple sentence or two is ok.

Emerson warns that friendship is “too good to be believed,” because one can never truly know another person; to Emerson, there is a “strict science” that keeps all persons in “remoteness” from one another. Because a person cannot know another person completely, friendship then is based on an imagined concept

b. cronkite, a trusted television personality, declared that the war was unwinnable and told the american people that the government had better find a way out

even though it went against everything the news anchors typically stood for, cronkite voiced an opinion and took a stance, telling the us that there was no way they were going to win, the war was going to end in a stalemate.