Violence doesn’t end violence. It extends it.

크리스마스에 핫초코 마시며 재미있게 본 에피소드. "A Town Called Mercy"
아래 대사가 와 닫는다.
The Doctor: Don’t you see? Violence doesn’t end violence. It extends it. And I don’t think you want to do this. I don’t think you want to become that man.

아래는 http://en.wikipedia.org/wiki/A_Town_Called_Mercy 에서
"A Town Called Mercy" received generally positive to mixed reviews from critics. IGN's Matt Risely rated the episode 8.5 out of 10, calling it "a weighty, progressive, sumptuous and entertaining adventure". He praised Whithouse and Metzstein for setting the right mood and found the highlight to be the Doctor's moral uncertainty. Dan Martin of The Guardian described it as "a complex morality dilemma fizzing with sharp dialogue". He wrote that it was Gillan who "emerged as the real star of the episode", citing Amy's conversation with the Doctor about how travelling alone had affected him.