Is "evil" always evil? What we might think is "evil" just might be "good" for the greater majority of people.
A good example, I think, is World War II ...war is evil, as most people would agree, and yet that very evil thing stopped a much greater evil from happening. So ...is war always evil? Or is the end result worth the momentary evil ...and so is ultimately good?
So ...is "evil" really always evil? Or do we have to wait for a few centuries to know? And how do we know when to stop wondering?
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M*W: I think "evilness" is relative from different perspectives. Your example of "war is evil" is timely and appropriate, but isn't that the purpose of war--putting a stop to or anihilating the greater evil? I would think so.
The outcomes of war may not be immediately recognized. In other words, we could "win the battle, but lose the war." There has to be a good reason for a war, because if war is started on a whim out of personal selfishness or gratification (as when Saddam Hussein attacked Kuwait), that is never right and always evil IMO. To enter WWII, after we were attacked was necessary if not obligatory.
In the case of Kuwait, it did take years to curtail the whim of a mad man, and although we know this mad man has been stopped, we may not know for years to come how our efforts in Iraq play out. As humans, we'd rather know
right now what the future would be like, but we're not fortune tellers. I don't believe anyone of us likes war, but sometimes it's a necessity to prepare for a better future.
So, to answer your question, "is evil always evil?," I would like to counter balance it with, "is good always good?" The answer to both is
No. There is never going to be a black-or-white answer to this. Evil can turn into good, and good can turn into evil given the effective parameters and paradigms.
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M*W's Friendly Atheist Quote of the Day:
"Religion has done more to bust-up humanity than anything." ~ Whoopi Goldberg