Good vs. evil

What is the difference between good and evil? 

Humans are not the ones to answer this question because we all have a little bit of righteousness and mischievous in all of us. Nobody's perfect and this is why evil can sometimes overpower us. Now, I can't really describe the difference between these two characteristics without using religious terminology and I am sorry for doing this but it is the only way I can really explain the amidst taking place here. 

Evil is conducted by the devil or in the case of the Exorcism of Emily Rose, the six voices; Lucifer being the leader. Now, this is the religious term. The non-religious term is actually our mind. Like Plato once said "our senses deceive us" and because of this, "we are like prisoners in a cave". It's interesting how our mind can sometimes think and lead us into a situation where the unspeakable can happen. Like murdering a person! What goes on in the minds of a serial killer when they are about to shoot their victim? Ohhhhh (shudder) I don't really want to know. However, our conscious mind is the devil.

Now, the ethical part of this situation is our heart. I believe that this is so because sometimes our mind can overpower our heart. Deep down we feel that we need to approach this situation calmly but up here, we think that the only way to approach this situation is with exasperation. Some people rarely follow their heart and allow the mind to control the circumstances. It's true that the brain is the central nervous system and without it functioning properly, we would be paralyzed. However, the heart is even more significant because without it we would be dead. I think that it is better to be paralyzed than dead. Don't you agree? 

Good vs. evil is a very difficult assumption because there is actually no right or wrong answer. All responses are welcome....