<span> He immediately let go of </span>his<span> own, and fiercely attacked the other </span>Dog<span> to get </span>his<span> larger piece from him.</span>
If you're looking for a certain portion of this excerpt that restates the main idea, I would have to say that the first few words explain it very well: "<span>I demand that my books be judged with utmost severity..." The writer of this statement is saying that they wish for their books to only be judged by those who are educated in grammar and logic. </span>
Based on the context of the paragraph, I would say A. Before.