What page is the quote in book eldest If any honor existed war it was fighting to protect others from harm?

The quote "If any honor existed in war, it was fighting to protect others from harm" is not found in the book "Eldest" by Christopher Paolini.

This quote is from the same author's previous book, "Eragon", and appears on page 318 of the US edition.

It's spoken by Eragon, the main character, reflecting on the nature of war and his own motivations for fighting.