If you go to read a standard psychology book to answer the question, you're unlikely to suffer an upsetting experience. The politically correct psychology of our time generally tells us, or at least implies, that, if free of abnormality, human beings are humane and constructive, fun, and safe to be with.
Answers & Comments
Answer:
I don't know what kind of answer you want but this is mine.
You can prove that a man is good if he or she does good,and you witness him or her do it,
you can see if he/she acts like a good person,or has a good personality.
sorry if you can't understand,not really good at english.
Answer:
If you go to read a standard psychology book to answer the question, you're unlikely to suffer an upsetting experience. The politically correct psychology of our time generally tells us, or at least implies, that, if free of abnormality, human beings are humane and constructive, fun, and safe to be with.