It will be the second one I did that last year
<span>People discover how to behave by learning to live in harmony with the forces of nature.</span>
I don't know what the other 2 are but the last Question is Hair.
Answer: For paragraphs use something like this, (Author Last Name Page #) No comma in between or anything, just that simple.
You didn't provide us with the text.
Twain accomplishes his purpose chiefly through telling a story within a story, also called a "frame story".