Remember there is nothing good or bad in this transient world, but thinking makes it so.. Then what is bad or, evil? It is any act - physical, mental or intellectual- which is usually violent or destructive in nature and, hinders soul's journey in its evolution- unfoldment ..Viewed from this perspective, one can easily find that there is a universality of certain qualities which promote soul's upward movement, which we can, however call "Good". Rest are all evil, or evil 'forces', tendencies which always demote and never promote. Finally, we, human beings, indulge in such 'evil' acts only due to ignorance. Please note that for lesser evolved creatures there is no good or evil. And 'thinking makes it so' only for humans!.. So, definitely, as said by Albert Einstein, "evil is a term which man has created to describe the result of absence of God's presence in the hearts of man".