The Once and Future King Book 2, Chapter 6
Arthur summons Kay and Sir Ector Merlyn and talks about his ideas on chivalry. He says that he has suddenly realized that Merlyn, even though he doesn't agree with fighting, is helping Arthur win the war against Lot and the other aggressors so that he can then stop war from being the solution to everything. Arthur says that once he gets control of his country, he will stop the murder and thieving that the powerful people have been subjecting the weaker ones to. "Why can't you harness Might so that it works for Right?" he asks Book 2, Chapter 6, pg. 254 Merlyn seems to finally believe that Arthur is thinking right.