D-ster asked:

Can good exist without evil? or is evil a necessary condition to distinguish good from evil?

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So tell me, what is "good"? Is it feelinggood? If so, then clearly you can feel good without, say,
feeling bad (or indeed without everfeeling bad; surely, for example, sugar tastes sweet, and you
enjoy that, whether you can taste anything else). Is it performing a good deed, like, say, saving
someone from drowning, or giving someone money? Well, again, you can do this without knowing
about "evil", or doing something evil, right? Is it something like generally and abstractly deciding to
help others? If so I still don't see why there needs to be evil to somehow make us aware that we're
doing something desirable, something that should be done. Is it knowingthat we're doing "good"?
Well... you might be able to argue this one, but I think you'd have to push it. Surely we are aware of
having choices, always, and that there are better and worse ones, in a variety of ways. And the better
ones, in, for example, modes of helping others will simply be "good", in my opinion.

Steven Ravett Brown