So what would be the question you are asking? if you're asking how to hook a reader in your intro start with an onomatopoeia or something like: On a dark and stormy night Elle Mist sat in the corner of her room crying wondering when her parents would come home.
        
             
        
        
        
The understanding of the poem, as the way a poem is structured can change the meaning or how the reader understands it drastically.
        
             
        
        
        
A three line stanza is known as a<span> tercet.</span>
        
             
        
        
        
If im on the right track then a way to right it with dashes would be: Sacrificing her was a mistake-a mistake that could have been avoided. but i may not have understood the question??
 
        
             
        
        
        
Answer:
Emerson was an American poet and philosopher that talked about individualism and that people should not accept help from anyone else and on this, one of his beliefs was that you should not focus on learning what you can find on books that is knowledge from the past and instead of that, look for the thruth in your heart. 
According to that, the answer is that the drawback of relying too much on books according to Emerson is that they make you focus on the knowledge from the past instead of looking for the thruth in your heart.