Quindlen links the conclusion to the introduction of her essay with the words "like many improbable ideas, when it works, it's a wonder", which is very close to her claim in the overall text, "America is an Improbable idea", it isn't supposed to work but it does despite all of the differences, specifically racial or ethnic, within it.
I believe the answer is: -The author uses words, such as “valiantly,” that have strong emotional connotations of courage and respect.
In the writing, the author depict how the indians at that time face a massive disadvantages against the people that drove them away from their homeland.
Despite that, they still not afraid to march into battles and fight for their freedom in their ancestor land.
Thane Cawdor is going to be executed and that Macbeth is going to be the new Thane of Cawdor