Magic is chaos, wild and untamed, the work of demons. Sorcerers bind demons to their will with horrific sacrifices and rare ointments so that they might control the very fabric of reality itself. Demons are creatures of Chaos, spawned from the Hells dominated by the roiling, seething stuff of Chaos.
Law is the root of civilization, the boon of humanity, the source of order and growth in Nature. All that the young race of humanity deems good.
Law and Chaos can never be reconciled.
This is the setup to the kickoff session in a new campaign. We're starting small, with just a couple folks from our normal group to see how the new game system goes.