Karl Rahner is one of the great theologians of the twentieth century, known for his systematic, foundationalist approach. This bold and original book explores the relationship between his theology and his philosophy, and argues for the possibility of a nonfoundationalist reading of Rahner. Karen Kilby calls into question both the admiration of Rahner's disciples for the overarching unity of his though, and the too easy dismissals of critics who object to his 'flawed philosophical staring point'