Why, don't people practice both White and Black magic, don't you need both of them to balance each other out? Or, at least learn about both of them, so you will know of them both and be more knowledgeable, because isn't knowledge power?
P.S. (Please don't take this as me trying to say anything bad about you, I'm not. I think everyone is smarter then someone else in a certain way, as is that person smarter then then some else in a different certain way.)