@philosopherqueen,
Quote:I don't think good and evil is a concept like heap and not heap. When we talk of heap and not heap we are always relating our concepts with physical items that either exits or don't exist respectively. When we talk of good and evil we are not relating these concepts to any thing physical, and we can't say of them 'Here is good and here is evil', like we do 'Here is a heap, and here is no heap'.
So I ask, in what manner is evil the opposite of good?
Sure, heap usually refers to something physical. But what about happy and unhappy?
In any case, I don't really see the issue. Does it matter if the terms refer to something physical?
As for your questions, I'm not really sure how to answer it. Evil is the opposite of good because we only understand evil if we understand good. Knolwedge of one begets the knowledge of the other. At least, this seems to be true, I could be wrong.
As for the discussion of heat, you make a very interesting point.
But let me ask - how can you know heat if you do not know no-heat? Basically, heat is motion of certain particles, the faster those particles move, the more heat, the slower they move, the less heat, and when they do not move at all, you have absolute zero. You point out that absolute zero is only theoretical, we have never encountered absolute zero. However, we obviously know what abolsute zero is. And it seems that we theorize about absolute zero so that we might have that not-heat point of refernce from which we can understand heat.
Zero implies one, one implies two. Heat implies non-heat, or absolute zero like good implies evil, and evil implies good.
But let's be careful - heat we can measure. Good and evil do not have measures.
Quote:Of course. It is only the naivety of religion, mythology, superstitious belief, novelties, metaphysics, and religious like governments under dualistic pretenses that try to define them as such absolutely.
Sometimes. But there are also religions, mythologies, ect, that reject this sort of dualism.