reply to post by hautmess
dictionary.reference.com...
Really not helpful at all.
1. morally wrong or bad; immoral; wicked: evil deeds; an evil life.
6. that which is evil; evil quality, intention, or conduct: to choose the lesser of two evils.
Worthless, recursive definitions.
7. the force in nature that governs and gives rise to wickedness and sin.
*shrug* If that's your answer, and it's a 'force of nature' then "we're born with it."
12. a disease, as king's evil.
...umm, ok. If evil is 'a disease' then evil enters into people with they get sick.
If you want a useful answer to your original post, you need to tell us what you mean by evil.