Not satisfied with the writing of Latin poems, the subjects of the English kings would construct theories and establish the rules of the art. It was carrying boldness very far; they did not realise that theories can only be laid down with safety in periods of maturity, and that in formulating them too early there is risk of propagating nothing but the rules of bad taste. This was the case with Geoffrey de Vinesauf, at the beginning of the thirteenth century. Geoffrey is sure of himself; he learnedly joins example to precept, he juggles with words; he soars on high, far above men of good sense. It was with great reason his work was called the New art of poetry, "Nova Poetria,"[262] for it has nothing in common with the old one, with Horace's. It is dedicated to the Pope, and begins by puns on the name of Innocent[263]; it closes with a comparison between the Pope and God: "Thou art neither God nor man, but an intermediary being whom God has taken into partnership.... Not wishing to keep all for himself, he has taken heaven and given thee earth; what could he do better?"[264] Precepts and examples are in the same style. Geoffrey teaches how to praise, blame, and ridicule; he gives models of good prosopopoeias; prosopopoeias for times of happiness: an apostrophe to England governed by Richard Coeur-de-Lion (we know how well he governed); prosopopoeia for times of sorrow: an apostrophe to England, whose sovereign (this same Richard) has been killed on a certain Friday: "England, of his death thou thyself diest!... O lamentable day of Venus! O cruel planet! this day has been thy night, this Venus thy venom; by her wert thou vulnerable!... O woe and more than woe! O death! O truculent death! O death, I wish thou wert dead! It pleased thee to remove the sun and to obscure the soil with obscurity!"[265] Then follow counsels as to the manner of treating ridiculous people[266]: they come in good time, and we breathe again, but we could have wished them even more stringent and sweeping. Such exaggerations make us understand the wisdom of the Oxford regulations prescribing simplicity and prohibiting emphasis; the more so if we consider that Geoffrey did not innovate, but merely turned into rules the tastes of many. Before him men of comparatively sound judgment, like Joseph of Exeter, forgot themselves so far as to apostrophise in these terms the night in which Troy was taken: "O night, cruel night! night truly noxious! troublous, sorrowful, traitorous, sanguinary night!"[267] &c. IV. The series of Latin prose authors of that epoch, grave or facetious, philosophers, moralists, satirists, historians, men of science, romance and tale writers, is still more remarkable in England than that of the poets. Had they only suspected the importance of the native language and left Latin, several of them would have held a very high rank in the national literature.