In the School of _Literæ Humaniores_ the studies are based on classical literature and on history, "but a large number of students approach philosophical study from other sides. Students of such subjects as mathematics, natural science, history, psychology, anthropology, or political economy become naturally interested in philosophy, and their needs are at present very imperfectly provided for in this university." This I quote from a Report to the Board of the Faculty of Arts made just before the war on a proposed new Honour School, the subject of which should be the principles of philosophy considered in their relation to the sciences. That joint action of this kind should have been taken by the Boards of Arts and of Science indicates a widespread conviction that no man is cultivated up to the standard of his generation who has not an appreciation of how the greatest achievements of the human mind have been reached; and the practical question is how to introduce such studies into the course of liberal education, how to give the science school the leaven of an old philosophy, how to leaven the old philosophical school with the thoughts of science.[13] [13] Since I wrote this lecture, Professor J. A. Stewart has sent me his just-published essay on _Oxford after the War and a Liberal Education_, in which he urges with all the weight of his learning and experience that the foundations of liberal education in Oxford should be "No Humane Letters without Natural Science and no Natural Science without Humane Letters."