It were much more pleasant, perhaps more profitable, to linger over and lovingly enumerate the charms of Chaucer at his best, than to trace him through his early experiments to such masterpieces as the blending of old Greek romance and manners with the manners and romance of chivalry in "The Knight's Tale," and in "Troilus and Criseyde". But it is customary to trace the "making" of Chaucer, not only through his experiences of Court, and camp, and grove, and city, but through his literary work. It is certain that in youth he translated that great popular French poem, the "Roman de la Rose," for he says so in his prologue to his "Legend of Good Women". The French poem was begun by Guillaume de Lorris about a century before the birth of Chaucer, as an allegory on the refinements of the doctrine of Love, as taught in the Courts of Love. Guillaume says that he has the warrant of Macrobius, in his "Dream of Scipio," for supposing that dreams are not wholly to be neglected: so he dreams, of course in May, of how the birds sang, and how he walked beside that very stream which the author of "Pearl" borrowed, and converted into the River that sunders the living and the dead. He encounters allegorical works of art, representative of all things evil, outside the walls of a beautiful garden, within which are Love and all things good. The ideas have a sweet vernal freshness, on their first presentation, but by repetition become as artificial as those of the "Carte du Tendre," the map of Love's land which amused the "Précieuses," the affected literary ladies, in the youth of Molière (1650-1660). The dreamer desires a lovely Rose, watched by a squire "Bel Accueil" (Fair Welcome) and the adventures, and fables from Ovid, are of a kind so taking to mediaeval readers that henceforth every poet had his May dream, birds, river, Love, Venus, allegorical personages, and the rest of the "machinery". De Lorris left the lover in despair, but Jean de Meung continued the poem at enormous length, and in a spirit far from chivalrous: he introduced every kind of new heresy against the feudal ideals, and so began a controversy in which Gerson, who lived to befriend the cause of Jeanne d'Arc (1429) took up his pen in defence of Christianity and chastity.