Wondering Why

I wonder why people do harm
And why people do good
What makes a person evil
And what makes him good
I think it's his surroundings
That makes him what he is
the influences that he gets
Is the energie he emits
The pain that he gets
Minus the love he receives
All the happijness he sees
Minus the hate that he feels
When the good overtakes the evil
Or the evil the good
Eventually some will turn evil
And some will turn good
But who deicides what is evil
And who deicides what is good
Why is there evil and why is there good?