 One the one hand, [sin] carries with it a sort of blindness, a sort of imperceptiveness, dullness, stupidity. This is a cognitive limitation that first of all prevents its victim from proper knowledge of God and his beauty, glory, and love; it also prevents him from seeing what is worth loving and what worth hating, what should be sought and what eschewed. It therefore comprises both knowledge of fact and knowledge of value. (Plantinga 2000: 207)