The quickening of interest in the great philosophical figure of Aquinas which has taken place during the last few years is a wellattested phenomenon. Of recent years there has been a distinct recognition that this mediaeval period was a most important time in the development of the human race, and that it has many urgent lessons for a modern age which has begun to realize that science and industry and mechanical efficiency have not succeeded in building such a perfect society as the optimistic Victorians had hastily hoped.