sentences:  He returned to Ireland, and around 520 founded Clonard Abbey, modelled on the practices of Welsh monasteries, and based on the traditions of the Desert Fathers and the study of Scripture.The rule of Clonard was known for its strictness and asceticism.Pupils of Finnian who became the founding fathers of monasteries are described as leaving Clonard bearing a book or crozier or some other object, suggesting that a working scriptorium and craft workshops were established at Clonard at an early date.