'That is to say, scientific workers will have to consider the whole question, for instance, of economics. I heard yesterday a distinguished member of the Government saying that we cannot change economics. Of course, that is one thing scientific men have got to do, to change economics so that the system of our industry shall be recreated. The system of management by dual control of the master and the slave will not work when the slave becomes an alive, active, intelligent, anarchic being. He will not be governed by the rein but by a system which the magnet can influence. However, the last hundred years has resulted in a race between the changed conditions that science has brought about and the organisation required to control them, in what has been called by Mr. Wells a race between education and catastrophe. In scientific language, it has produced a serious stress because of the hurrying on of change of conditions and the lagging behind of the methods of controlling them. It is this stress, I think, which has broken up the system. You may even say that the war itself is no cause of anything, but a result of the purely automatic action of shearing forces, as when a testing machine breaks a metal bar. 'The end of the war has left us with a whole host of individuals set free, and the business before science men is to organise this new body. It is a big problem, and requires scientific thought, temperament, and outlook to rewrite practically the whole of our knowledge. It reminds me of the tremendous rush there was amongst scientific men to provide workers to overhaul practically everything in biology (and theology) and other parts of human knowledge after the doctrines of Darwin were well established. I take it that all the departments of human life have to be rewritten by men under the influence of the spirit of science. Our books have to be rewritten, our very dictionaries. I have often amused myself with the _Oxford Dictionary_, or found it necessary to send a boy to that authority for a definition, and it has pretty nearly always been false. Take such a simple case as the word "democracy." The _Oxford Dictionary_ hasn't a thing to tell you about the meaning of "democracy" as we use it to-day. It tells you nothing of the living use of words. That is one of the terrible dangers of leaving our books in the hands of men who have not got that outlook which experiment in science brings to the individual. Consequently I say that the duty of scientific men is to scour the whole area of knowledge and rewrite it to bring out new standards, new values, by means of which labour and industry itself, in the first instance, can be reorganised (the schools first should be reorganised), and then you can extend it into the wider area of international affairs.