The Fathers developed their distinguishing qualities of style and language under the demands of the topics absorbing them, and the influence of modes of feeling coming with Christianity. They were compelling an established language to express novel matter. In the centuries after them, further changes were to come through the linguistic tendencies moulding the evolution of the Romance tongues, through the counter influence of the study of grammar and rhetoric, and also through the ignorance and intellectual limitations of the writers. But as with the Latin of the Fathers, so with the Latin of the Middle Ages, the change of style and language was intimately and spiritually dependent upon the minds and temperaments of the writers and the qualities of the subjects for which they were seeking an expression. A profound influence in the evolution of mediaeval Latin was the continual endeavour of the mediaeval genius to express the thoughts and feelings through which it was becoming itself. With impressive adequacy and power the Christian writers of the Middle Ages moulded their inherited and acquired Latin tongue to utter the varied matters which moved their minds and lifted up their hearts. We marvel to see a language which once had told the stately tale of Rome here lowered to fantastic incident and dull stupidity, then with almost gospel simplicity telling the moving story of some saintly life; again sonorously uttering thoughts to lift men from the earth and denunciations crushing them to hell; quivering with hope and fear and love, and chanting the last verities of the human soul.