I agree with Todd.
I tend to believe a person is kind and caring, until they prove otherwise. Whether these traits are human nature or a learned behavior, I don't know. I know that my children are considerate and loving, is that because that is what we've taught them? Maybe. But it would go against our nature to teach them anything else.
And you could argue that people with violent tendancies learned that behavior. By lack of parenting, or abusive parenting, it could teach someone that the apropriate response to a situation is violence. Or that a person is not accountable for thier actions.
Goes both ways....I think it depends on what your personal beliefs are....
adina