So, not to start a debate, but...

Please define the following terms:

• Good
• Evil
• Soul

I make this request not simply to be picky, but to illustrate the fact that the nature of the question defies a reasonable answer. If the soul is defined (as Hali says) as "that portion of the human psyche which is, alone, capable of striving for the betterment of its own station," then perhaps the absence of the soul does entail evil. This, of course, assumes that evil may be defined as "acting upon our baser natures," and not, as Melin claims "a willful decision to act in a manner that is contrary to or inconsistent with what we know in our heart of hearts to be true and good." Indeed, if Melin's definition of evil is accurate, then the absence of the soul might make it impossible for a human to be evil... if evil consists of knowingly engaging in wrongdoing, and if the soul is that portion of ourselves which is able to differentiate between right and wrong.

So. There.