sentences:  Quesnel, and more recently Morin, have attributed to him the treatise "De Fide orthodoxa", which is directed against Arianism, and figures among the works of St. Ambrose and of Vigilius of Thapsus.The same may be said of the first seven of the twelve books "De Trinitate", the authorship of which has been ascribed to Vigilius of Thapsus.A few commentators have also sought to prove that Gregory Bæticus was the writer of the tractatus "De Libris Sacarum Scripturarum", published by Pierre Batiffol (Paris, 1900) as the work of Origen.