Greece and Rome a rich culture, a complete social organism, a powerful political system, a plurality of religions, an order of moral virtues and actions. And even now, underneath and side by side with the Christian religion a rich stream of natural life continues to flow. What, then, is the relation of Christianity to this wealth of natural life, which, originating in creation, has, under the law there imposed upon it, developed from age to age? What is the connection between nature and grace, creation