It is fully divine."[23] Augustine Casiday states that Cassian "baldly asserts that God's grace, not human free will, is responsible for 'everything which pertains to salvation' – even faith".[24] Others hold that "the view of Cassian as the ringleader of 'semi-Pelagianism' rests on a conjectural chronology".[25] The Roman Catholic Church includes John Cassian in its official list of recognized saints, with a feastday on 23 July,[26] and cites him in the Catechism of the Catholic Church.[27] It did not endorse Augustine entirely[28] and, while later Catholic theologians accepted Augustine's authority, they interpreted his views in the light of writers such as Cassian.[29] West and East consider both John Cassian and Augustine of Hippo as saints.