This chapter connects the larger theme of the link between contemporary law and classical international thought to the ideas posited by two jurists—Cornelis Van Vollenhoven and Emer de Vattel. In 1919, Van Vollenhoven published a small work in which he issued a fierce critique of classical (legal) thought, which, according to him, was embodied by the eighteenth-century jurist, Emer de Vattel. The classical conception of international law was never expounded more clearly than in Vattel’s 1758 work, Le droit des gens, ou principes de la loi naturelle, appliqués à la conduit et aux affaires des Nations et des Souverains. Hence, by studying Vattel’s and Van Vollenhoven’s doctrines, of which the latter offers a distorted reflection of the former, it is possible to contribute to elucidating the concerns, weaknesses, and current incarnations of that classical model.