Is every species of living thing on the planet equally deserving of protection?
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From The Lord of the Rings by J.R.R. Tolkien, specifically the chapter The Shadow of the Past, in which Gandalf responds to Frodo's statement that Gollum is an enemy who deserves death:
Go read Carnival of the Godless #72.
…for us readers. I can't even imagine how the organizers are coping.