So it's an opinion based on our mores, culture, religion, values, upbringing?

: when you read scripture?
if you would read the op, you would see that that might be one way to put it, but @ "opinion" the impression is given that the opinion need not be supported, whereas that is not really true, and we recognize the value of
witnesses also. So, a better way to define it is;
Aristotle placed at the foundations of logical thought the following three propositions.
1. Identity: A = A. Whatever is, is. A is itself and not some other thing.
2. Noncontradiction: A and not A can't both be the case. Nothing can both be and not be. A proposition and its opposite can't both be true.
3. Excluded middle: Everything must either be or not be. A or not A can be true but not something in between.
Modern Westerners accept these propositions (but Easterners do not)...
...three principles underlie Eastern dialecticism. Notice I didn't say "propositions..." the term "proposition" has much too formal a ring for what is a generalized stance toward the world rather than a set of ironclad rules.
1.
Principle of change:
Reality is a process of change.
What is currently true will shortly be false.
2.
Principle of contradiction:
Contradiction is the dynamic underlying change.
Because change is constant, contradiction is constant.
3.
Principle of relationships (or holism):
The whole is more than the sum of its parts.
Parts are meaningful only in relation to the whole...
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and we could further differentiate this from "Hegelian dialectic," which is not the same thing at all, by seeing that the Hegelian makes very different assumptions, that
are propositions, forcing one back to an "A or notA" decision, warping the 3rd assumption there into one of conflict rather than cooperation, and assuming a winner and a loser.