Judgment of good and evil

Something good, or something evil are the value judgments on things that people think.

They are relative, depending on the person, on the society and on the age.

Even though some people think something is a good thing, that does not necessarily mean that it is a good thing also for others.
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You will make big mistakes if you make decisions based only on your value judgement.
Living in a narrow society for a long time, people tend to think that the value judgements in the society are the absolutely right thing.

However, once you go to the world outside of the society, you will be reminded how tiny the society's value judgments and attitudes are.