This topic suggestion, Why is there evil in the world?, is from The Daily Post as part of the Post-a-day writing challenge.
Student: Sir, you are working on the Premise of Duality. You argue there is Life and then there is Death, a good God and a bad God. You are viewing the concept of God as something finite, something we can measure. Sir, Science can’t even explain a thought. It uses electricity and magnetism, but has never seen, much less fully understood either one. To view death as the opposite of life is to be ignorant of the fact that death cannot exist as a substantive thing. Death is not the opposite of life, just the absence of it.
That quote is part of a longer story about an atheist Philosophy lecturer and a student having an argument in class, where the student ends up declaring to his classmates that the lecturer has no brain, because no one in the class has seen, felt, tasted, smelt or heard it. You can read it in full here.
You see, there is evil in this world when people are far away from God. God allows it because he has given us free will. We can choose which way we go. I have this image of God, and all his angels, looking on from above, cheering each of us on to choose the right way, and consoling us when we make a mistake.