Evil is whatever you are trained to think it is by the majority belief in society at the time. If you want to add an esoteric religious Flair to it then although man did create evil and the devil man is the devil as well because the devil is depicted as having that triangle pointed tail in a lot of old historical paintings and depictions and he's also known as a dragon well the tail is because your sacrum makes a triangle point your spine makes a snake and it also makes a dragging when you look at the rib cage as wings and it's connected to the lower portion of your brain which is called The Reptilian Brain where all your desires come from and those desires mainly being things like food /anger/ sexual appetite /basically all the things that relations says are of the devil