Two major French medieval literary works that claim to teach their readers the art of love are virtually torn apart by the contradictions and conflicts they contain. In Andreas Capellanus's late twelfth-century Latin De amore, the author instructs his friend Walter in the amatory art in the first two books, but then harshly repudiates his own teachings and love itself in a third and final book. In Jean de Meun's encyclopedic continuation of the Romance...