 It is worth noting, though, that there is a crucial argument that typically relies on perfect goodness (understood as perfect moral goodness) as a perfection in order to argue that there is no absolutely perfect being. This is the argument from evil, which holds that because the world contains evil (or evil of some specific type, or of some amount, or distributed in some way), then this world is not under the control of an absolutely perfect – at least, omniscient, omnipotent, and morally perfect – being. There is a massive classical and contemporary literature on the problem of evil; consideration of formulations of the argument from evil and of attempts to reconcile the existence of evil and the existence of an absolutely perfect being is beyond the scope of this article. (But see entry on  the problem of evil.)