[freeeee]

Here was your question:

Why do you believe that some people are good and others bad

I believe that some are good and some are bad because I observe, through their actions, good and bad people. Hence they both exist. That's why I believe some are good and some are bad. And that was the question.

I asked why some people are good and others are not.

That's a new question. In my opinion, the combined effects of genetics and environment/upbringing unique to each individual cause a development of a set of morals or lack thereof.

[Zack Nguyen]

Really? So evil is genetic/envirnmental/social? Why then do you call it "evil", since nothing in that description gives ultimate responsiblity to the individual?

[Aquinasfan]

In my opinion, the combined effects of genetics and environment/upbringing unique to each individual cause a development of a set of morals or lack thereof.

Does good and evil really exist? If it does, please define both terms or provide a link to a definition to which you agree.