" Within his lifetime or soon after his death, the Irish slave trade came to a halt, and other forms of violence, such as murder and intertribal warfare, decreased. In reforming Irish sexual mores, he was rather less successful, though he established indigenous monasteries and convents, whose inmates by their way of life reminded the Irish that the virtues of lifelong faithfulness, courage, and generosity were actually attainable by ordinary human beings and that the sword was not the only instrument for structuring a society. "

― Thomas Cahill , How the Irish Saved Civilization: The Untold Story of Ireland's Heroic Role from the Fall of Rome to the Rise of Medieval Europe