"Shortly[1] after the Reformation, we find two great schools of thought dividing this class of subjects between them. The most influential of the two was at first the sect of school known to us as the Casuists, all of them in spiritual communion with the Roman Catholic Church, and nearly all of them affiliated to one or other of her religious orders. On the other side were a body of writer connected with each other by a common intellectual descent from the great author of the treatise De Jure Belli et Pacis, Hugo Grotius. Almost all of the latter were adherents of the Reformation, and though it cannot be said that they were formally and avowedly at conflict with the Casuists, the origin and object of their system were nevertheless essentially different from those of Casuistry. It is necessary to call attention to this difference, because it involves the question of the influence of Roman law on that department of thought with which both systems are concerned. The book of Grotius, though it touches questions of pure Ethics in every page, and though it is the parent immediate or remote of innumerable volumes of formal morality, is not, as is well known, a professed treatise on Moral Philosophy; it is an attempt to determine the Law of Nature, or Natural Law. Now, without entering upon the question, whether the con-
- ↑ The passage quoted is transcribed with slight alterations from a paper contributed by the author to the Cambridge Essays for 1856.
