If you're referring the classic text by author John Bunyon, "<span>He is against war because it misuses faith and reason to justify it" is the best answer. He was imprisoned for twelve years for these views. </span>
It explains that Romeo and Juliet will face many obstacles because of their families' hatred.
The author Mary Shelley use the word chimerical in that line because she said that the powers of Cornelius Agrippa were improbable and because she wanted to say this in a fancy way.
Hope this Helps :)
BTW, Mary Shelley is the author of Frankenstein <span />