He Who Fights With Monsters

"He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you."

Friedrich Wilhelm Nietzsche, “Beyond Good and Evil", Aphorism 146 (1886) 

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All too often, as you fight with monsters, whether in war, or inside yourself, you sacrifice the good with the bad, trying to rid that space of the darkness that threatens to overwhelm. You risk destroying the very things that you're trying to protect. 

My apologies, I don't know who created this wonderful picture. 

If you know, please let me know ASAP so I can properly credit it

or remove it if the artist objects.