This is what has just happened in our political hygiene. Political science has been as recklessly neglected by Governments and electorates during my lifetime as sanitary science was in the days of Charles the Second. In international relations diplomacy has been a boyishly lawless affair of family intrigues, commercial and territorial brigandage, torpors of pseudo-goodnature produced by laziness and spasms of ferocious activity produced by terror. But in these islands we muddled through. Nature gave us a longer credit than she gave to France or Germany or Russia. To British centenarians who died in their beds in 1914, any dread of having to hide underground in London from the shells of an enemy seemed more remote and fantastic than a dread of the appearance of a colony of cobras and rattlesnakes in Kensington Gardens. In the prophetic works of Charles Dickens we were warned against many evils which have since come to pass; but of the evil of being slaughtered by a foreign foe on our own doorsteps there was no shadow. Nature gave us a very long credit; and we abused it to the utmost. But when she struck at last she struck with a vengeance. For four years she smote our firstborn and heaped on us plagues of which Egypt never dreamed. They were all as preventable as the great Plague of London, and came solely because they had not been prevented. They were not undone by winning the war. The earth is still bursting with the dead bodies of the victors. The Wicked Half Century It is difficult to say whether indifference and neglect are worse than false doctrine; but Heartbreak House and Horseback Hall unfortunately suffered from both. For half a century before the war civilization had been going to the devil very precipitately under the influence of a pseudo-science as disastrous as the blackest Calvinism. Calvinism taught that as we are predestinately saved or damned, nothing that we can do can alter our destiny. Still, as Calvinism gave the individual no clue as to whether he had drawn a lucky number or an unlucky one, it left him a fairly strong interest in encouraging his hopes of salvation and allaying his fear of damnation by behaving as one of the elect might be expected to behave rather than as one of the reprobate. But in the middle of the nineteenth century naturalists and physicists assured the world, in the name of Science, that salvation and damnation are all nonsense, and that predestination is the central truth of religion, inasmuch as human beings are produced by their environment, their sins and good deeds being only a series of chemical and mechanical reactions over which they have no control. Such figments as mind, choice, purpose, conscience, will, and so forth, are, they taught, mere illusions, produced because they are useful in the continual struggle of the human machine to maintain its environment in a favorable condition, a process incidentally involving the ruthless destruction or subjection of its